Ruby on Rails: ActiveStorage service's signed URLs can be hijacked via AppCache+Cookie stuffing trick when using GCS or DiskService

ActiveStorage tries to force content-disposition: attachment for a list of content-types, including text/html. However, response-content-type and response-content-disposition in GCS and DiskService's URLs aren't signed, which means an attacker can modify them at will. This is not the case for Azu...

Valve: XSS @ store.steampowered.com via agecheck path name

Hi, I found a Cross-Site Scripting XSS in store.steampowered.com because the path after /agecheck/ is not sanitized as it should. https://store.steampowered.com/agecheck/appmhuh2', sessionid: gsessionID, ageDay: '', ageMonth: '', ageYear: '' .done function response %20 ;alertXSS-by-TvM;function...

Mail.ru: ICQ 10.0.12371 icq: Uri Handler '-testability' URL File Insecure Library Loading Code Execution Vulnerability

An exploitation of combination of unsafe URI handler and insecure DLL loading could result in code execution via DLL injection in ICQ desktop application for Windows if user executes malformed .url file...

Ubiquiti Inc.: Resource Consumption DOS on Edgemax v1.10.6

Resource consumption Denial of service. 1: The request below shows that when you feed the beaker.session.id cookie variable a payload of 250 characters or more, the web management portal will produce an error page showing full path disclosure and more as shown in screenshots error1.png and...

HackerOne: Self DOM-Based XSS in www.hackerone.com

Summary: There is a 'self' DOM-based cross-site scripting vulnerability in the contact form available on the www.hackerone.com website. This could allow an attacker to perform cross-site scripting, or other client-side attacks, against users of the application. However, the risk presented by this...

Starbucks: Thailand – a small number of alarm system portals accessible with the default credentials

radoooz discovered that a small number of AAP IP Module alarm system portals in Thailand were accessible, utilizing their default credentials. @radoooz — thank you for reporting this vulnerability and confirming the resolution...

BOHEMIA INTERACTIVE a.s.: Apache Server Version Disclousure

Hello Team, I would like to report a bug for https://forums.bohemia.net/ Banner Grabbing is a technique used to get information about remote servers. In addition, this directory is used to find information about remote servers. Proof of concept : 1. Go to https://forums.bohemia.net/applications/...

U.S. Dept Of Defense: SSRF on ████████

Summary: The web application hosted on the "███████" domain is affected by a Server Side Request Forgery SSRF vulnerability that could allows an attacker to force the application to make requests to arbitrary targets. Description: The affected handler is the "/xmlrpc/pingback/". This handler...

WordPress: Stored XSS on Broken Themes via filename

Hi, I've found something here, Description XSS Stored because filename of theme when broken, So when theme is broken, Wordpress will inform the name of theme who has been broken which is the folder name of theme and inform the error with description message. F342862 Looks like the filename is...

Shopify: Open redirection in OAuth

steps to reproduce: 1-Open your shopify partner account. 2-Create an app and click on test your app. 3-Select a development store you own. 4-Intercept the request using burpsuite and change the "installappSelect a store" parameter to any store with no validation. The request like this: POST...

Node.js third-party modules: [apex-publish-static-files] Command Injection on connectString

I would like to report a command injection vulnerability in the apex-publish-static-files npm module. It allows arbitrary shell command execution through a maliciously crafted argument. Module module name: apex-publish-static-files version: 2.0.0 npm page:...

BOHEMIA INTERACTIVE a.s.: Clickjacking at ylands.com

Hi team, While performing security testing of your website i have found the vulnerability called Clickjacking. Many URLS are in scope and vulnerable to Clickjacking. What is Clickjacking ? Clickjacking User Interface redress attack, UI redress attack, UI redressing is a malicious technique of...

DuckDuckGo: DOM XSS on 50x.html page

Hello, The is a DOM XSS vulnerability on https://duckduckgo.com/50x.html, it seems like the sink is DIV.innerHTML and the source is location.search. The PoC url is: https://duckduckgo.com/50x.html?e=&atb=test%22/%3E%3Cimg%20src=x%20onerror=alertdocument.domain;%3E The code that is causing this XS...

BOHEMIA INTERACTIVE a.s.: Stealing Users OAUTH Tokens via redirect_uri

Hi, I would like to report an Open redirection on oauth redirecturi which can lead to users oauth tokens being leaked to any malicious user. Detail During the OAUTH flow, the redirecturi on https://accounts.bistudio.com is not properly validating that the URL given is proper, as such a bypass of...

Grammarly: Emails from Grammarly missing sanitization(lack of validation?) -> HTML injection in emails

Summary: Emails from Grammarly e.g. "reset password" email missing HTML sanitization. That leads to content spoofing in emails. Steps To Reproduce: 1. Go to "Profile" 2. Find reset password tab if you're logged in using FB/Google, you won't see this menu 3. Change email to something like:...

Slack: AWS bucket leading to iOS test build code and configuration exposure

@kiyell discovered an open AWS bucket which hosted the source code of the iOS test application, as well as some configuration information and test data relating to that test build. No customer data was exposed or at risk, and we resolved and investigated this issue. Thank you @kiyell for a neat...

Zomato: IDOR to delete images from other stores

Summary: The parameter photoids in below request is vulnerable to IDOR /php/clientmanagehandler?██████████&case=remove-active-photo Description: Since there is no check for resid or ownership I was able to delete Gerben's image by just using the photoid from his store. This is a problem because i...

Weblate: 2nd issue>>> flood of email no rate limit on delete account confirmation email >>

There was no rate limit on delete account confirmation email, leading to user being able to send himself flood of emails...

WordPress: Logic flaw in the Post creation process allows creating posts with arbitrary types without needing the corresponding nonce

Simon discovered that authors could create posts of unauthorized post types with specially crafted input fixed. This was fixed in the 5.0.1 release, and Simon has published more details on his blog...

Node.js third-party modules: [buttle] Unsafe rendering of Markdown files

I would like to report Cross Site Scripting vulnerablity in buttle module It allows to execute arbitary javascript due to unsafe rendering of markdown files. Module module name: buttle version: 0.2.0 npm page: https://www.npmjs.com/package/buttle Module Description Another static file server? Why...

Weblate: flood of comment no rate limit on commnets >> by using different user agent

It was possible to post 200- 300 of comments within minutes, there was no rate limiting applied...

Nextcloud: Information Exposure Through Directory Listing - https://apps.nextcloud.com/static/

Hi Security Team, Url : https://apps.nextcloud.com/static/assets/ Dork : site:nextcloud.com intitle:index.of Hello I am Ismail Tasdelen. I was testing directory security and I saw many directories open. Thanks Impact A directory listing is inappropriately exposed, yielding potentially sensitive...

Weblate: Tab nabbing via window.opener

Details: When you open a link in a new tab target="blank" , the page that opens in a new tab can access the initial tab and change it's location using the window.opener property. Attack scenario: here i have provided 2 videos, in video 1 i have my editorial link set. to show that tabnapping is...

Khan Academy: Possible Take Over Subdomain For Inbound Emails

Hello KhanAcademy Security Team, I'm rootbakar, The researcher identified that the affected url points to sendgrid.net, via a DNS CNAME record. As a result of this an attacker could potentially initate a subdomain take over by registering the subdomain sendgrid.khanacademy.org on sendgrid and...

Khan Academy: SignUp With Fake Email

Hello KhanAcademy Security Team, I'm rootbakar, I found an oddity that allows a user to register with Khanacademy using an invalid or fake email. In this trial I used the email '[email protected]' and after pressing the SIGN UP button it will automatically enter the user dashboard pag...

Khan Academy: Stored 'undefined' Cross-site Scripting

Hello KhanAcademy Security Team, I'm rootbakar, I found an XSS bug on 'BIO' in the profile, I used payload XSS "/load=promptdocument.domain;"/load= prompt document.cookie; after I save it appears there is no trigger from the XSS, but when I try to change one of the values in the profile form and...

Zomato: [www.zomato.com] Tampering with Order Quantity and paying less amount then actual amount, leads to business loss

Hi, Team, Like discussed with Prateek I am dropping the report here. Summary: Like the title says using this vulnerability one could order food at negligible price or keep all delivery executives busy. Description: While fuzzing my way through the payment flow on Zomato orders I came across a...

Node.js third-party modules: [takeapeek] Path traversal allow to expose directory and files

I would like to report Path Travelsal in takeapeek It allows attacker to list directory and files. Module module name: takeapeek version: 0.2.2 npm page: https://www.npmjs.com/package/takeapeek Module Description A simple static webserver with only one command. Heavily inspired by glance, this is...

Node.js third-party modules: [knightjs] Path Traversal allows to read content of arbitrary files

I would like to report Path Travelsal in Knightjs It allows attacker to read content of arbitary file on remote server. Module module name: Knightjs version: 0.0.1 npm page: https://www.npmjs.com/package/knightjs Module Description knight is a simple static server without configuration on the top...

Node.js third-party modules: List any file in the folder by using path traversal

I would like to report Path Traversal in simplehttpserver. It allows to list any file in another folder of web root. Module module name: simplehttpserver version: v0.2.1 npm page: https://www.npmjs.com/package/simplehttpserver Module Description 'simpehttpserver' is an simple imitation of python'...

Node.js third-party modules: [tianma-static] Stored xss on filename

I would like to report stored xss in tianma-static It allows anyone to execute arbitary javascript for doing anything. Module module name: tianma-static version: 1.0.4 npm page: https://www.npmjs.com/package/tianma-static Module Description Provide a static file service. Vulnerability Vulnerabili...

Zomato: [www.zomato.com] SQLi - /php/██████████ - item_id

Thanks @gerbenjavado for helping us keep @zomato secure : Thanks to the entire @Zomato team for doing this challenge. Its a pleasure to be back in the bug bounty game after a while. Introduction So I managed to find SQLi on https://www.zomato.com/php/██████████ in the POST parameter itemid...

Chaturbate: Private and group tokens per minute endpoint active for disabled users

The hacker found that the private and group show rate endpoints where still active when an account was disabled. This was resolved. The endpoints only disclosed the rate for these shows...

Basecamp: Attachments may be hijacked via AppCache+CookieBombing trick (bc3_production_blobs bucket)

Basecamp attachments are stored in the bc3productionblobs bucket in the root directory and can be served with text/html content-type...

Semrush: Remote Code Execution on www.semrush.com/my_reports on Logo upload

The Logo upload in the report constructor at: https://www.semrush.com/myreports/constructor F340480 is passed through a not properly patched version of ImageMagick. You can use Postscript to get Ghostscript to run which in return allows to trigger arbitrary commands on the server, leading to Remo...

Ubiquiti Inc.: Public Jenkins instance with /script enabled

Hi, First of all. I'm not 100% able to verify that this server is actually owned by Ubnt as there are multiple DNS Name's in the SSL certificate. DNS Name: .uum.com DNS Name: .ubnt.com DNS Name: .svc.ubnt.com DNS Name: .api.uum.com DNS Name: .svc.uum.com DNS Name: uum.com So, the server hosted on...

Automattic: Authenticated Code Execution through Phar deserialization in CSV Importer as Shop manager in WooCommerce

This vulnerability is based on the following exploitation technique: https://blog.ripstech.com/2018/new-php-exploitation-technique/ It is easier to explain this vulnerability by having watched the PoC first: https://www.youtube.com/watch?v=mr3bAOIUwd4 Here is what's happening: 1. Since a valid ph...

Automattic: WooCommerce Blacklist in 'map_meta_cap' leads to Privilege Escalation of Shopmanagers

When the Shopmanager role is defined for the first time, it receives the following WordPress core privileges: // Shop manager role. addrole 'shopmanager', 'Shop manager', array 'level9' = true, 'level8' = true, 'level7' = true, 'level6' = true, 'level5' = true, 'level4' = true, 'level3' = true,...

Automattic: Stored XSS in Jetpack's Simple Payment Module by Contributors / Authors

Jetpack's implementation of the Simple Payment Module is as follows: A custom post type is registered for each product. When an admin creates a product, a post is internally created and information about the product, such as the price is then stored as post meta information. After the post has be...

X (Formerly Twitter): HTTPS is not validating TLS mac codes

https://twitterflightschool.com is prone to POODLE and also a stronger variant of POODLE which allows a MITM attacker to actively decrypt bytes from an HTTPS request. This attack is possible because the device terminating this TLS connection responds differently to a bad record mac when the last...

GitLab: XSS in request approvals

Hello, team! I found xss. Steps to reproduce: 1. Open project settings 2. paste in this field link777 F339770 3. click on result F339772 In the username, a XSS poc should be written, like mine. Impact XSS...

Valve: [Half-Life 1] Malformed map name leads to memory corruption and code execution

A stack overflow takes place when map names with malformed names are listed which can be used to execute arbitrary code. I made a Proof of Concept that executes gnome-calculator on Linux. This was tested on Half Life 2018-08-29 on Linux, Ubuntu 18.04. To reproduce: - Extract the attached zip-file...

Automattic: Arbitrary File Download as Shopmanager

Due to a flaw in the way WooCommerce handles downloadable products, a shop manager can download arbitrary files on the server. The video shows the exploit and how simple it is: https://www.youtube.com/watch?v=bkrHpqht5SM The function responsible for validating the download file input is the...

Bumble: Расшифровка всех типов шифрованных ID

Привет! Обнаружил багу, которая позволяет очень серьезно обойти логику сайта. Данная уязвимость позволяет расшифровать любой зашифрованный ID, который идентифицирует профиль пользователя. Для каждого пользователя генерируется несколько видов ID, например для отображения в "Знакоства", "Live...

pixiv: RCE due to ImageTragick v2

Hello Pixiv team! Your Image processing process suffering from ImageTragick v2. Issue is caused by ghostscript RCE findnings. How to reproduce: PATCH /design Host: manage.booth.pm send following image: ------WebKitFormBoundaryXX05yrKS4g8d9CWh Content-Disposition: form-data; name="shopheader";...

PayPal: [Venmo Android] Remote theft of user session

A URL activity in the Venmo application used the built-in android.net.Uri parser, which has a known logic problem with certain characters. If an external URL were passed from a website or other app on the device to the application activity, the app would open the URL without properly validating t...

Grab: [Grab Android/iOS] Insecure deeplink leads to sensitive information disclosure

A deeplink feature was found missing validation that led to sensitive information disclosure. Once triggered, the deeplink would direct users to load any attacker-controlled URL within a webview. The impact was further escalated as the webview contain sensitive information. A temporary patch was...

Chaturbate: [chaturbate.com] - CSRF Vulnerability on image upload

Summary Hi guys, One of the features available to a Chaturbate user is the ability to upload images into photo sets. The upload functionality does not use any CSRF tokens, allowing attackers to perform CSRF attacks and upload images to a user's profile without the user's consent. Steps To...

Starbucks: [mena.starbucks.com] Laravel App Log & Configuration Disclosure.

bobrov discovered a misconfiguration in a Laravel instance at mena.starbucks.com, which exposed log files and environment variables containing database management credentials. The logs have been removed, and the instance of Laravel has been disabled. Thank you @bobrov for finding this...

Chaturbate: Open redirect in securegatewayaccess.com / secure.chaturbate.com via prejoin_data parameter

Summary Hello, I have found that if there is a valid wegdigest parameter in the in the GET request to https://secure.chaturbate.com/post and other parameters are invalid, a Location header will be automatically constructor based on the contents of the prejoindata parameter. This allows someone to...