Gogs: DOM-based XSS via milestone selection in gogs.io/gogs

Open Source Vulnerabilities CVE-2026-26276

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 selects that Milestone on the New Issue page (/issues/new), a DOM-Based XSS is triggered. This issue has been patched in version 0.14.2.

Open Source Vulnerabilities GHSA-vgjm-2cpf-4g7c

# 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

Open Source Vulnerabilities GO-2026-4627

Gogs: DOM-based XSS via milestone selection in gogs.io/gogs