Gitea stored cross-site scripting in the issue reference popup

MITRE NVD CVE.ORG JSON API

Summary

CVECVE-2026-120729
StatePUBLISHED
AssignerGitea
Source PriorityCVE Program / NVD first with legacy fallback
Published2026-11-15 22:17:17 UTC
Updated2026-11-15 22:17:17 UTC
DescriptionThe popup shown when hovering an issue reference loaded its data from the path of the hovered link and inserted part of the response as HTML. A user who can post a comment or other rendered content could add a link that is displayed as an ordinary issue reference but points to a file in a repository they control, so that the popup inserted that file's content into the page of anyone hovering the link and ran script in the viewer's session. The popup now requests the issue by the owner, repository and index parsed from the link.

Risk And Classification

Problem Types: CWE-79 | CWE-79 CWE-79: Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')

Vendor Declared Affected Products

SourceVendorProductVersionPlatforms
CNA Gitea Gitea affected 1.27.0 28.4.0 semver Not specified

References

ReferenceSourceLinkTags
github.com/go-gitea/gitea/pull/40207 88ee5874-cf24-4952-aea0-31affedb7ff2 github.com
github.com/go-gitea/gitea/releases/tag/v28.4.0 88ee5874-cf24-4952-aea0-31affedb7ff2 github.com
github.com/go-gitea/gitea/pull/40225 88ee5874-cf24-4952-aea0-31affedb7ff2 github.com
github.com/go-gitea/gitea/security/advisories/GHSA-wmr3-xg9x-vc55 88ee5874-cf24-4952-aea0-31affedb7ff2 github.com
blog.gitea.com/release-of-28.4.0 88ee5874-cf24-4952-aea0-31affedb7ff2 blog.gitea.com
CVE Program record CVE.ORG www.cve.org canonical
NVD vulnerability detail NVD nvd.nist.gov canonical, analysis

Vendor Comments And Credit

Discovery Credit

CNA: https://github.com/silverwind (en)

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