HackerOne: Stored XSS on https://events.hackerone.com

@nagli found a stored Cross-Site Scripting vulnerability in a 3rd party vendor that was used by HackerOne. This system did not contain any data related to reports submitted and stored on hackerone.com. HackerOne worked with the vendor to remediate the vulnerability. The report is partially...

Basecamp: Lack of quarantine macOS attribute(com.apple.quarantine) leads multiple issues including RCE

Hi, basecamp team. HEY macOS client does not properly validate file uploads on its macOS inbox. That is because, by not setting the com.apple.quarantine attribute in the metadata of an executable file when it is uploaded, you allow the file to be executed on macOS without being checked by...

TikTok Launches Bug Bounty Program Amid Security SNAFUs

TikTok has expanded its vulnerability disclosure policy to include a global bug-bounty program through a partnership with the ethical hacker platform HackerOne. The bug-bounty program launch signals a new direction for the Chinese-owned video-sharing app, which has been much maligned for its...

Automattic: [api.tumblr.com] Denial of Service by cookies manipulation

Hello Summary: I have found at api.tumblr.com two parameters consumerkey && consumersecret allow to modify oa-consumerkey && oaconsumersecret cookies values and property. An attacker can send a malicious link to reset the cookies of api.tumblr.com, this lead to DOS. To trigger the DOS, the...

HackerOne: Getting New Invitations without Leaving Programs

Hello there, I hope all is well! Description When you leave the private program, you get a chance to get a new invitation. But using this vulnerability, I can get new invitations without leaving private programs. Steps: 1. Go to any private bug bounty program. 2. Click Leave Program button 3. Cli...

Acronis: Ticket Trick at https://account.acronis.com

Summary Hello dear team, I found a serious issue in Acronis This vulnerability is called ticket trick vulnerability which comes under critical category. Which can allow me to login on websites like atlassian,github,clouflare,choopa,..etc on behalf of [email protected] . Steps To Reprodu...

HackerOne: Blind Stored XSS in HackerOne's Sal 4.1.4.2149 (sal.████.com)

The page located at https://sal.██████.com/list/Activity/hour/all/0/ suffers from a Cross-site Scripting XSS vulnerability when a user has set their hostname on their machine to an XSS payload. Vulnerable Page https://sal.██████.com/list/Activity/hour/all/0/ Victim IP Address ███████ Referer...

CS Money: Server-side denial of service via large payload sent to wiki.cs.money/graphql

Summary: By sending a large payload to wiki.cs.money, a malicious actor can cause a partial or full denial of service to other users using the graphql part of wiki.cs.money Steps To Reproduce: - Setup burpsuite as a proxy - Go to burpsuite - Proxy - Options - Match & Replace - Click add - ITEM =...

Stripo Inc: weak password poilicy in signup password leak to account takeover

Summary: add summary of the vulnerability i create account with weak password Steps To Reproduce: add details for how we can reproduce the issue 1.i create account with weak password qwerty123 2- account create done without validation 3- it should have protected users from attack and have policy...

Automattic: Tab nabbing via window.opener.location (target "_blank")

Summary: When you open a link using target="blank", the page that opens in a new tab get access to the initial tab and change its location using the window.opener.location function. Platforms Affected: website Steps To Reproduce for the first target blank: 1. First target "blank" 1. On...

HackerOne: Stored Cross-Site Scripting vulnerability in example Custom Digital Agreement

The advanced vetting settings page is vulnerable to a Cross-Site Scripting XSS vulnerability by passing the unsanitized Program Name into a Markdown component, which expects sanitized HTML to be given. This leads to a stored XSS vulnerability that can be exploited by a program member when the...

GitLab: Able to view hackerone reports attachments

Summary Hi team, I accidentally found this bug. While reading one of hackerone public report https://hackerone.com/reports/446238 about gitlab, I found a link posted by gitlab member which is related to internal tracking of the report. I clicked that link...

Acronis: Clickjacking on cas.acronis.com login page

Steps To Reproduce: Create a new HTML file Source code: I Frame Clickjacking Vulnerability Save the file as whatever.html Open document in browser Reference: https://hackerone.com/reports/591432 FIX- The vulnerability can be fixed by adding "frame-ancestors 'self';" to the CSP...

CS Money: Pixel Flood Attack leads to Application level DoS

Summary: Hello Team, I had gone through your policy and I saw that DoS is out of scope but I am not sure about Application level DoS. The another reason to report this attack because it affects real customers who want to chat with your support team. I had tested this with two accounts 1. From...

OX App Suite / OX Documents XSS / SSRF / Bypass

Dear subscribers, we're sharing our latest advisory with you and like to thank everyone who contributed in finding and solving those vulnerabilities. Feel free to join our bug bounty programs for OX App Suite, Dovecot and PowerDNS at HackerOne. Yours sincerely, Martin Heiland, Open-Xchange GmbH...

HackerOne: Recently added 'Country' field doesn't send email notification when changed

Summary: Hi team, This is a small bug report. Actually I think there is no important security issue but I wanted to report it ¯\ツ/¯ If you change your 'Country' information on account settings, HackerOne doesn't send Your profile was recently changed email. Description: There is an email...

HackerOne: Pentester can obtain information about other pentesters who applied for the same test, but weren't accepted

Hi team, I don't know your policy about pentestersabout their visibility on the platform, But I couldn't find any other pentesters before. 1 For example: GraphQL has the h1pentester attribute that would explicitly point us to the pentester, but if we make a query, it doesn't reveal the pentester ...

FreeBSD ip6_setpktopt Use-After-Free Privilege Escalation Exploit

This Metasploit module exploits a race and use-after-free vulnerability in the FreeBSD kernel IPv6 socket handling. A missing synchronization lock in the IPV62292PKTOPTIONS option handling in setsockopt permits racing ip6setpktopt access to a freed ip6pktopts struct. This exploit overwrites the...

GSA Bounty: Denial of service via cache poisoning on https://www.data.gov/

An attacker can persistently block access to any on https://www.data.gov/ by using cache poisoning with the h0st headers to cause 502 response code。 To replicate: load https://www.data.gov/ in your browser. look the burp , add ?xyzxyz=1 as cache buster , and add h0st headers h0st: wrtqvavjigwdvoq...

GSA Bounty: Wordpress Users Disclosure (/wp-json/wp/v2/users/) on data.gov

Summary: Hello TTS Bug bounty team! I have found data.gov User/admin usernames disclosed. Using REST API, we can see all the WordPress users/author with some of their information. Steps To Reproduce: You can find the information disclosure by going to data.gov/wp-json/wp/v2/users/ Supporting Vide...