UXss on brave browser via scan QR Code
High
B
Brave Software
Submitted None
Actions:
Reported by
mrzheev
Vulnerability Details
Technical details and impact analysis
## Summary:
I found UXss in your browser, and executed Xss on all open domains.
before that I want to tell you a little, that I've found a vulnerability like this in Microsoft Edge :
https://msrc.microsoft.com/update-guide/en-US/vulnerability/CVE-2022-23258
Oppo browser : (Private/no disclosure)
and now i found it in your application
## Products affected:
* Android 13, Brave browser version 1.48.164, Brave Nightly browser version 1.50.53, Brave Beta Browser version 1.49.106, Chromium 110.5481.100
Payload : {F2191688}
This is a QR Code containing the url : blocked:alert(document.domain);
which the attacker will use to attack the victim
## Steps To Reproduce:
- Open Brave browser
- Open www.google.com
{F2191713}
- Click the url bar and delete the url (click the cross on the Url Bar)
{F2191709}
- You will see a Scan QR Code button
{F2191707}
- Click Scan QR Code button & Scan the QR Code above
{F2191708}
- Xss Executed.
{F2191706} {F2191705}
## Supporting Material/References:
{F2191774}
https://msrc.microsoft.com/update-guide/en-US/vulnerability/CVE-2022-23258
## Impact
Attackers can steal the victim's cookies, and as you can see at this point. that this vulnerability does not only affect brave, but will affect all existing domains/websites. and it is very possible that websites such as facebook.com, google.com, microsoft.com are also affected by this vulnerability
example :
https://portswigger.net/daily-swig/microsoft-edge-translator-contained-uxss-flaw-exploitable-on-any-web-page
Related CVEs
Associated Common Vulnerabilities and Exposures
CVE-2022-23258
MEDIUM
No description available
Report Details
Additional information and metadata
State
Closed
Substate
Resolved
Bounty
$500.00
Submitted
Weakness
Cross-site Scripting (XSS) - Generic