HackerOne: External programs revealing info

A bug in an authorization check was found by @1337coder on an endpoint that was showing the members of a team, as well as the team member groups that were set up. Example output: "id":1, "username":"dirk", "name":"dirk", "bio":"", "url":"https://hackerone.com/dirk" , "id":2, "name":"Admin",...

HackerOne: Websites opened from reports can change url of report page

Websites opened from the a hackerone report can change the url of the report page. For example, clicking on a link set to "http://d214mfsab.org/same.html" including this one will change the still-open report page to http://example.com. This works on current versions of Safari including mobile and...

HackerOne: Disclosure of private programs that have an "external" page on HackerOne

Hay again , We know that there are some companies have "external" page on HackerOne : https://hackerone.com/directory?query=type%3Aexternal&sort=name%3Aascending&page=1 Some of those companies are hosting private programs as well , with the same handles We can pick up any program from the externa...

Imgur: XSS via React element spoofing

Hello, I noticed an XSS on imgur. Proof of concept: visit the URL http://imgur.com/vidgif/ticket/aaaaaaaa?errorpropsdangerouslySetInnerHTMLhtml=%3Cimg%20src=a%20onerror=%22alert%27XSS%20on%20%27%2bdocument.domain%22%3E&errorisReactElement=true&errortype=body It's not the simplest case as it...

HackerOne: CSV Injection via the CSV export feature

I've bypassed 111192 by using this string ";=cmd|' /C calc'!A0" without doublequotes. Steps to reproduce are as in 111192. Tested in excel 2003-2013...

HackerOne: Sending emails (via HackerOne) impersonating other users

Hello, This was a very weird behavior that I observed and I am not sure exactly what is causing this but I trust you guys to dig into this more. So, basically in a sandboxed program, when I set a trigger for an auto-response, I am getting emails from the HackerOne platform as a user who has no...

HackerOne: SECURITY: Referencing previous Reports attachment_IDs on new Reports via Draft_Sync DELETES Attachments

Issue New HackerOne exciting addition is the ability to include inline images by using their referenceID, which is in this case Fxxxxx. The reference ID is bind to the its report ContextID and cant be referenced by others unique reference Is seems that if the referenceID is used in another newest...

HackerOne: Unauthorized Team members viewing

In a Team, a user that does not have an admin permission at https://hackerone.com/teamname/teammembers can view the list of users in the Program by visiting https://hackerone.com/teamname/teammembers.json Although it is only a user with an admin permission that can view the Team members and modif...

HackerOne: Mediation link can be accepted by other users

When a company user requests mediation on a report, a support ticket is created for the HackerOne team to investigate. @kirkj found out that the support ticket included an invitation link, and that some support reps may include it inadvertently within email replies. If HackerOne had not accepted...

HackerOne: Possible XSS

Hi, I opened this report as soon as I have read https://mathiasbynens.github.io/rel-noopener/ It doesn't necessarly affect HackerOne, nor have i given it enough time to get a working dom manipulation. But since Markdown allows creating target attributes to anchor tags, it may be possible to get...

HackerOne: Edit Auto Response Messages

Not completely sure if this is by design due to encountering it for the first time. When a company has auto response turned on, the reporter can change the contents of the message without any problems. The reporter should not be able to change the contents of the companies auto response in any wa...

HackerOne: User with Read-Only permissions can edit the Internal comment Activities on Bug Reports After Revoke the team access permissions

Poc : 1.Login into Programtestbug as Alice account 2.Create a new group with "Read-only" Permission . Add a Bob to that group 3.Bob report a bug to Programtestbug After Post "Some Internal comments" 4.Now Alice Revoke the Bob team access permissions so Bob is no longer part of the team 5.Bob...

HackerOne: Distinguish EP+Private vs Private programs in HackerOne

Hi! I would like to provide the following matrix in order to distinguish between EP+Private vs Private programs in HackerOne, without the need to login. I am using two endpoints. These are: 1. https://hackerone.com/ENTITY/thanks/2012.json and 2. https://hackerone.com/ENTITY/thanks/2013.json If...

HackerOne: User with Read-Only permissions can edit the SwagAwarded Activities on Bug Reports

Poc : 1.Login into Programtestbug as owner account 2.Create a new group with "Reward" Permission . Add a user to that group 3.Create a new group with "Read-only" Permission . Add a user to that group 3.Login into user account Report a bug to Program testbug 4."Reward" Permission User awarded a sw...

HackerOne: User with Read-Only permissions can manually public disclosure the report

Hello, I would like to report an incomplete fix of 109483 this report .manually disclose functionality is not consider for fix that cause read-only team members to post a public comment. In hackerone public disclose have a three types 1.Team/User Request a public disclose a bug 2.Team/user Agree ...

HackerOne: Abusing HOF rankings in limited circumstances

HI, I think you will close this as NA but i think you should resolve this bug at some point. As we know submitting duplicate report of valid report earns you +2 point and also gives you HOFknown bug. So you will appear in team's HOF as https://hackerone.com/security/thanks with 2 points Now how...

HackerOne: Denial of Service any Report

Hello. This comment can cause a failure of any load report This is SPARTAA...

Ubiquiti Networks UniFi 3.2.10 Cross Site Request Forgery

RCE Security Advisory https://www.rcesecurity.com 1. ADVISORY INFORMATION ----------------------- Product: Ubiquiti Networks UniFi Vendor URL: www.ubnt.com Type: Cross-Site Request Forgery CWE-353 Date found: 2015-03-19 Date published: 2016-02-23 CVSSv3 Score: 6.3...

HackerOne: CSV Injection at the CSV export feature

Hi there, I have find a way to bypass the mitigation done in 72785 and 111192. What happens if an attacker creates a Ticket with the Tittle ":";-3+3+cmd|' /C calc'!D2. The ; will break the field making excel think that there are two fields. Although, you are using "" to encapsulate a field and , ...

Ubiquiti Networks UniFi 3.2.10 - Cross-Site Request Forgery

Exploit for hardware platform in category web applications 1. ADVISORY INFORMATION ----------------------- Product: Ubiquiti Networks UniFi Vendor URL: www.ubnt.com Type: Cross-Site Request Forgery CWE-353 Date found: 2015-03-19 Date published: 2016-02-23 CVSSv3 Score: 6.3...