Medium severity · published Aug 10, 2026
CVE-2026-72727
Discourse: Stored XSS in the moderation review queue
4.8
CVSS
0.4%
EPSS
No
On KEV
Description
Discourse is an open-source discussion platform. Prior to 026.1.6, 2026.5.2, 2026.6.1, and 2026.7.0, a low-privileged user could place crafted content in the moderation review queue that executed stored cross-site scripting when a moderator viewed it on a site 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.
Exploitation
Is it being used?
Exploit prediction (EPSS)0.4% · higher than 34% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
DI
discourse · discourse
< 2026.1.6; >= 2026.5.0-latest, < 2026.5.2; >= 2026.6.0-latest, < 2026.6.1 · source: vendor
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2026-72727
CVE.org
https://www.cve.org/CVERecord?id=CVE-2026-72727
github.com
https://github.com/discourse/discourse/security/advisories/GHSA-pq6q-p5g3-rj54
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