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Vulnerability record · CVE-2021-28378 · published 15 March 2021

CVE-2021-28378: Gitea cross-site scripting vulnerability

Gitea · Gitea

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

5.4 CVSS 3.1 Medium EPSS 8.8% · top 5.0% CWE-79 · Cross-site scripting
5.4CVSS 3.1 base score, v2 3.5
8.8%EPSS exploitation probability, 30 days
NoNot in CISA KEV
1Affected product versions listed by NVD
6References, 2 tagged exploit
17 Jun 2026Last modified by NVD

Description

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

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

Affected products

1 vulnerable configurations from NVD's CPE data, grouped by vendor and product.

References

LinkTags
https://blog.gitea.io/2021/03/gitea-1.13.4-is-released/ Release NotesVendor Advisory
https://github.com/PandatiX/CVE-2021-28378 ExploitThird Party Advisory
https://github.com/go-gitea/gitea/pull/14898 PatchThird Party Advisory
https://blog.gitea.io/2021/03/gitea-1.13.4-is-released/ Release NotesVendor Advisory
https://github.com/PandatiX/CVE-2021-28378 ExploitThird Party Advisory
https://github.com/go-gitea/gitea/pull/14898 PatchThird Party Advisory

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Related vulnerabilities

Same products first, then exploited flaws of the same weakness class.

9.8CVE-2026-60004Gitea diffpatch API code injection enables remote code executionGitea before 1.27.1 allows remote code execution through the diffpatch API by way of Git hook installation. The flaw is a code injection issue (CWE-9…KEVEPSS 24%analysed9.8CVE-2022-42968Gitea argument injection vulnerabilityGitea before 1.17.3 does not sanitize and escape refs in the git backend. Arguments to git commands are mishandled.EPSS 1.2%9.8CVE-2021-45331Gitea improper authentication vulnerabilityAn Authentication Bypass vulnerability exists in Gitea before 1.5.0, which could let a malicious user gain privileges. If captured, the TOTP code for…EPSS 1.4%9.8CVE-2021-45330Gitea vulnerabilityAn issue exsits in Gitea through 1.15.7, which could let a malicious user gain privileges due to client side cookies not being deleted and the sessio…EPSS 1.4%9.8CVE-2021-45327Gitea interpretation conflict vulnerabilityGitea before 1.11.2 is affected by Trusting HTTP Permission Methods on the Server Side when referencing the vulnerable admin or user API. which could…EPSS 2.1%9.8CVE-2020-28991Gitea vulnerabilityGitea 0.9.99 through 1.12.x before 1.12.6 does not prevent a git protocol path that specifies a TCP port number and also contains newlines (with URL …EPSS 1.7%9.8CVE-2019-11576Gitea improper authentication vulnerabilityGitea before 1.8.0 allows 1FA for user accounts that have completed 2FA enrollment. If a user's credentials are known, then an attacker could send th…EPSS 1.8%9.8CVE-2018-18926Gitea vulnerabilityGitea before 1.5.4 allows remote code execution because it does not properly validate session IDs. This is related to session ID handling in the go-m…EPSS 3.0%

Source: NIST National Vulnerability Database (record CVE-2021-28378), CISA KEV, FIRST EPSS (scores of 2026-09-26). This page is refreshed as NVD updates the record.