GHSA-5gjh-5j4f-cpwv

### Impact

The malicious user is able to upload a crafted `config` file into repository's `.git` directory with to gain SSH access to the server. All installations with [repository upload enabled (default)](https://github.com/gogs/gogs/blob/f36eeedbf89328ee70cc3a2e239f6314f9021f58/conf/app.ini#L127-L129) are affected.

### Patches

Repository file uploads are prohibited to its `.git` directory. Users should upgrade to 0.12.6 or the latest 0.13.0+dev.

### Workarounds

[Disable repository files upload](https://github.com/gogs/gogs/blob/f36eeedbf89328ee70cc3a2e239f6314f9021f58/conf/app.ini#L128-L129).

### References

https://huntr.dev/bounties/b4928cfe-4110-462f-a180-6d5673797902/

### For more information

If you have any questions or comments about this advisory, please post on #6833.