CVE-2025-48954 — Discourse vulnerable to XSS via user-provided query parameter in oauth failure flow

CVE-2025-48954

Discourse vulnerable to XSS via user-provided query parameter in oauth failure flow PUBLISHED

Description (CNA)

Discourse is an open-source discussion platform. Versions prior to 3.5.0.beta6 are vulnerable to cross-site scripting when the content security policy isn't enabled when using social logins. Version 3.5.0.beta6 patches the issue. As a workaround, have the content security policy enabled.

Affected (CNA)

Vendor / product	Versions
discourse / discourse	affected < 3.5.0.beta6

CWE

CWE-79

References

https://github.com/discourse/discourse/security/advisories/GHSA-26p5-mjjh-wfcf

ADP enrichment

CISA-ADP

No English description supplied.

No references supplied.