CVE-2026-72729

EUVD-2026-55669
Discourse is an open-source discussion platform. Prior to 2026.1.6, 2026.5.2, 2026.6.1, and 2026.7.0, the discourse-local-dates plugin rendered crafted local-date format data as HTML on sites with a modified or disabled default Content Security Policy. This issue is fixed in versions 2026.1.6, 2026.5.2, 2026.6.1, and 2026.7.0.
Cross-site Scripting
ProviderTypeBase ScoreAtk. VectorAtk. ComplexityPriv. RequiredVector
GitHub_MCNA
2 LOW
NETWORK
LOW
LOW
CVSS:4.0/AV:N/AC:L/AT:P/PR:L/UI:A/VC:L/VI:L/VA:N/SC:N/SI:N/SA:N
Base Score
CVSS 3.x
EPSS Score
Percentile: Unknown
Early Detection
Affected products identified ahead of NVD analysis through intelligence sources.
VendorProductVersionSource
discoursediscourse
𝑥
< 2026.1.6
CNA
Common Weakness Enumeration
References
https://github.com/discourse/discourse/commit/9768f476ed86ea202440cd2b6245af8a4f94ec69
https://github.com/discourse/discourse/commit/981ba23d33d2e2d98f6690734116af58f2cea938
https://github.com/discourse/discourse/commit/a7e509bfa1aa6288b447503de6ef798c31a62751
https://github.com/discourse/discourse/commit/d5d5055fbdf04d5bd72fcaa7e4257fac5adac049
https://github.com/discourse/discourse/security/advisories/GHSA-rw96-2xg7-h54g