high7.3
CVE-2026-26276
Gogs: DOM-based XSS via milestone selection
Impact
# 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
Affected packages
| Ecosystem | Package | Affected | Fixed in |
|---|---|---|---|
| go | gogs.io/gogs | <= 0.13.3 | none recorded |
Affected products
| Vendor | Product | Affected versions |
|---|---|---|
| Gogs | Gogs | before 0.14.2 |
Weakness classification
References
- NVD record
- CVE.org record
- GitHub advisory
- https://github.com/gogs/gogs/pull/8178
- https://github.com/gogs/gogs/releases/tag/v0.14.2
- https://github.com/gogs/gogs/security/advisories/GHSA-vgjm-2cpf-4g7c
- https://github.com/advisories/GHSA-vgjm-2cpf-4g7c
- https://github.com/gogs/gogs/commit/9001a68cdda7bd9c078ffd6d1c4622905ac11e5c
- https://nvd.nist.gov/vuln/detail/CVE-2026-26276