CVE-2026-72725
Discourse: Stored XSS in staff action logs injects staff UI
CVSS Score
5.4
EPSS Score
0.0%
EPSS Percentile
0th
Discourse is an open-source discussion platform. Prior to 2026.1.6, the staff action log model rendered unescaped previous and new value fields that could inject stored cross-site scripting into the staff interface. The issue is fixed in 2026.1.6, 2026.5.2, 2026.6.1, and 2026.7.0.
| CWE | CWE-79 |
| Vendor | discourse |
| Product | discourse |
| Published | Aug 10, 2026 |
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CVSS v3 Breakdown
CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N Attack Vector
Network
Attack Complexity
Low
Privileges Required
Low
User Interaction
Required
Scope
Changed
Confidentiality
Low
Integrity
Low
Availability
None
Affected Versions
discourse / discourse
< 2026.1.6 >= 2026.5.0, < 2026.5.2 >= 2026.6.0, < 2026.6.1
References
github.com: https://github.com/discourse/discourse/security/advisories/GHSA-8x29-vv56-wj6v github.com: https://github.com/discourse/discourse/commit/66601a6e6eeeabfcb06d2f692d68534be12de082 github.com: https://github.com/discourse/discourse/commit/74ae22d85f4e13c7c7f2e3c13fce023feec7e033 github.com: https://github.com/discourse/discourse/commit/fd44510b4303e7f8f0b42bd070a2d42d3cda259f