Gogs: DOM-based XSS via milestone selection
# Summary It was confirmed in a test environment that an attacker can store an HTML/JavaScript payload in a repository’s **Milestone name**, and when another user selects that Milestone on the **New Issue** page (`/issues/new`), a **DOM-Based XSS** is triggered. # Impact * Theft of information accessible in the victim’s session. * Extraction of CSRF tokens and submission of state-changing requests with the victim’s privileges. * Repository operations performed with the victim’s privileges (Issue operations, settings changes, etc.). (The impact scope depends on the victim’s permission level.) # Remediation A fix is available at https://github.com/gogs/gogs/releases/tag/v0.14.2
describes (1)
Related CVEs.
| ID | severity | exploitable | ||
|---|---|---|---|---|
| CVE-2026-26276US | medium5.4 | — | ||
Gogs is an open source self-hosted Git service. Prior to version 0.14.2, an attacker can store an HTML/JavaScript payload in a repository’s Milestone name, and when another user se… | ||||
references
External citations — patches, advisories, analysis.
- https://github.com/gogs/gogsPACKAGE
- https://github.com/gogs/gogs/commit/9001a68cdda7bd9c078ffd6d1c4622905ac11e5cWEB
- https://github.com/gogs/gogs/pull/8178WEB
- https://github.com/gogs/gogs/releases/tag/v0.14.2WEB
- https://github.com/gogs/gogs/security/advisories/GHSA-vgjm-2cpf-4g7cWEB
- https://nvd.nist.gov/vuln/detail/CVE-2026-26276ADVISORY
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