CVE-2026-26276

EUVD-2026-9855
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.
Cross-site Scripting
ProviderTypeBase ScoreAtk. VectorAtk. ComplexityPriv. RequiredVector
NISTPrimary
7.3 HIGH
NETWORK
LOW
LOW
CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:H/I:H/A:N
GitHub_MCNA
7.3 HIGH
NETWORK
LOW
LOW
CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:H/I:H/A:N
Base Score
CVSS 3.x
EPSS Score
Percentile: Unknown
Affected Products (NVD)
VendorProductVersion
gogsgogs
𝑥
< 0.14.2
𝑥
= Vulnerable software versions
Common Weakness Enumeration
References
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