ImpressCMS: Slack server disclose h1 private issue report

Summary ======= Upon browsing the https://www.impresscms.org/, one of the post include the public Slack Channel however the devel channel exposed some of the private h1 reports. Checking ImpressCMS hacktivity the issues that get resolved/reported are private which helps me to verify that the team...

HackerOne: Security@ email forwarding and Embedded Submission drafts can be used to obtain copy of deleted attachments from other HackerOne users

HackerOne has a number of ways for hackers to submit security vulnerabilities to a program, two of which are through an embedded submission form and through security@ email forwarding. These two features can be exploited to update a report draft created through security@ email forwarding that doe...

HackerOne: Indexing of urls on the "External link warning" pages discloses many vulnerable endpoints from the past and unlisted videos/photos

@nagli found a misconfiguration in an interstitial page that could lead to a link to be indexed by a 3rd party. This could have exposed links to proof of concepts that HackerOne users had posted on hackerone.com. This affected a specific set of customers, which HackerOne worked together with to...

HackerOne: Reflected XSS and possible SSRF/XXE on https://events.hackerone.com/conferences/get_recording_slides_xml.xml?url=myserver/xss.xml

@nagli found a reflected Cross-Site Scripting XSS, Server-Side Request Forgery SSRF, and XML External Entity XXE 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...

HackerOne: Open Redirect on http://events.hackerone.com/redirect?url=https://naglinagli.github.io

@nagli found an open redirect 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 disclosed to...

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...