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GHSA-ff28-f46g-r9g8
No affected components available
Impact
The malicious user is able to upload a crafted SVG file as the issue attachment to archive XSS. All installations allow uploading SVG (text/xml) files as issue attachments (non-default) are affected.
Patches
Correctly setting the Content Security Policy for the serving endpoint. Users should upgrade to 0.12.7 or the latest 0.13.0+dev.
Workarounds
Disable uploading SVG files (text/xml) as issue attachments.
References
https://huntr.dev/bounties/34a12146-3a5d-4efc-a0f8-7a3ae04b198d/
For more information
If you have any questions or comments about this advisory, please post on https://github.com/gogs/gogs/issues/6919.
The vulnerability can be exploited over the network without needing physical access. It is easy for an attacker to exploit this vulnerability. An attacker needs basic access or low-level privileges. The attacker needs the user to perform some action, like clicking a link. The vulnerability can affect other systems as well, not just the initial system. There is a low impact on the confidentiality of the information. There is a low impact on the integrity of the data.
Exploitation attempts have been detected. Elevated vigilance and prompt remediation are advised.
The exploit probability is very low. The vulnerability is unlikely to be exploited in the next 30 days.
We did not find any exploit available. Neither in GitHub repositories nor in the Exploit-Database.
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