medium5.4
CVE-2026-40353
wger has Stored XSS via Unescaped License Attribution Fields
Impact
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.
Affected packages
| Ecosystem | Package | Affected | Fixed in |
|---|---|---|---|
| pip | wger | <= 2.4 | none recorded |
Affected products
| Vendor | Product | Affected versions |
|---|---|---|
| Wger | Wger | before 2.5 |