wger is a free, open-source workout and fitness manager. In versions 2.5 and below, the attribution_link property in AbstractLicenseModel constructs HTML by directly interpolating user-controlled license fields (such as license_author) without escaping, and templates render the result using Django's |safe filter. An authenticated user can create an ingredient with a malicious license_author value containing JavaScript, which executes in the browser of any visitor viewing the ingredient page, resulting in stored XSS. This issue has been fixed in version 2.5.
Advisories
Source ID Title
Github GHSA Github GHSA GHSA-6f54-qjvm-wwq3 wger has Stored XSS via Unescaped License Attribution Fields
Fixes

Solution

No solution given by the vendor.


Workaround

No workaround given by the vendor.

History

Fri, 17 Apr 2026 22:45:00 +0000

Type Values Removed Values Added
First Time appeared Wger-project
Wger-project wger
Vendors & Products Wger-project
Wger-project wger

Fri, 17 Apr 2026 21:30:00 +0000

Type Values Removed Values Added
Description wger is a free, open-source workout and fitness manager. In versions 2.5 and below, the attribution_link property in AbstractLicenseModel constructs HTML by directly interpolating user-controlled license fields (such as license_author) without escaping, and templates render the result using Django's |safe filter. An authenticated user can create an ingredient with a malicious license_author value containing JavaScript, which executes in the browser of any visitor viewing the ingredient page, resulting in stored XSS. This issue has been fixed in version 2.5.
Title wger: Stored XSS via Unescaped License Attribution Fields
Weaknesses CWE-79
References
Metrics cvssV4_0

{'score': 5.1, 'vector': 'CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:P/VC:N/VI:N/VA:N/SC:L/SI:L/SA:N'}


Projects

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cve-icon MITRE

Status: PUBLISHED

Assigner: GitHub_M

Published:

Updated: 2026-04-17T21:16:12.401Z

Reserved: 2026-04-10T22:50:01.359Z

Link: CVE-2026-40353

cve-icon Vulnrichment

No data.

cve-icon NVD

Status : Received

Published: 2026-04-17T22:16:33.077

Modified: 2026-04-17T22:16:33.077

Link: CVE-2026-40353

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

Updated: 2026-04-17T22:30:29Z

Weaknesses