GHSA-hf29-9hfh-w63j: Gogs allows argument injection during the previewing of changes

### Impact Unprivileged user accounts can write to arbitrary files on the filesystem. We could demonstrate its exploitation to force a re-installation of the instance, granting administrator rights. It allows accessing and altering any user's code hosted on the same instance. ### Patches Unintended Git options has been ignored for diff preview (https://github.com/gogs/gogs/pull/7871). Users should upgrade to 0.13.1 or the latest 0.14.0+dev. ### Workarounds No viable workaround available, please only grant access to trusted users to your Gogs instance on affected versions. ### References https://www.cve.org/CVERecord?id=CVE-2024-39932

Four unpatched security flaws, including three critical ones, have been disclosed in the Gogs open-source, self-hosted Git service that could enable an authenticated attacker to breach susceptible instances, steal or wipe source code, and even plant backdoors. The vulnerabilities, according to SonarSource researchers Thomas Chauchefoin and Paul Gerste, are listed below - CVE-2024-39930 (CVSS