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CVE-2021-28378

MediumPublished

Gitea 1.12.x and 1.13.x before 1.13.4 allows XSS via certain issue data in some situations.

Published: Mar 15, 2021
Updated: Aug 3, 2024
Assigning CNA: mitre
Evidence observed: Aug 8, 2026

Primary CVSS

5.4/ 10Medium

nvd · CVSS 3.1

CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N

EPSS probability estimate

8.8%

Low · next 30 days

Percentile: 95.0%
Model date: Sep 21, 2026

EPSS is a statistical estimate, not a certainty or a measure of impact. Combine it with CVSS, KEV status, exposure and your environment.

Summary

Gitea 1.12.x and 1.13.x before 1.13.4 allows XSS via certain issue data in some situations.

Sources

CVE-2021-28378PoC
Detailed proof-of-concept and analysis of CVE-2021-28378, a stored XSS vulnerability in Gitea enabling arbitrary code injection, privilege escalation, and remote code execution via git hooks.

Responsible use

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