CVE-2026-59102

Forgejo before 15.0.3 contains a stored cross-site scripting vulnerability that allows authenticated attackers to execute arbitrary JavaScript in other users' browsers by setting a full name containing an HTML payload and triggering an Actions run. When the DEFAULT_SHOW_FULL_NAME option is enabled, the run description is assembled server-side with the user's display name interpolated into an HTML string via a translation function that does not escape its arguments, and the frontend renders the result using a Vue v-html binding, causing script execution for any user who views the affected Actions run page.

CVSS v3 5.4 MEDIUM

5.4^/10

CVSS v3 : MEDIUM

Vector :

Exploitability : 2.3 / Impact : 2.7

Attack Vector NETWORK

Attack Complexity LOW

Privileges Required LOW

User Interaction REQUIRED

Confidentiality Impact LOW

Integrity Impact LOW

Availability Impact NONE

Scope CHANGED

References

Link	Resource
https://codeberg.org/forgejo/forgejo/pulls/13002
https://codeberg.org/forgejo/forgejo/src/branch/forgejo/release-notes-published/15.0.3.md
https://github.com/geo-chen/oss/blob/main/forgejo.md
https://www.vulncheck.com/advisories/forgejo-stored-xss-via-actions-run-full-name-rendering

Configurations

No configuration.

History

02 Jul 2026, 20:17

Type	Values Removed	Values Added
New CVE

Information

Published : 2026-07-02 20:17

Updated : 2026-07-06 19:01

NVD link : CVE-2026-59102

Mitre link : CVE-2026-59102

CVE.ORG link : CVE-2026-59102

JSON object : View

Products Affected

No product.

CWE

CWE-79

Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')

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