Medium severity · published Mar 17, 2023
CVE-2023-26040
Discourse is an open-source discussion platform
6.1
CVSS
0.4%
EPSS
No
On KEV
Description
Discourse is an open-source discussion platform. Between versions 3.1.0.beta2 and 3.1.0.beta3 of the `tests-passed` branch, editing or responding to a chat message containing malicious content could lead to a cross-site scripting attack. This issue is patched in version 3.1.0.beta3 of the `tests-passed` branch. There are no known workarounds.
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N
Attack vector
Network
Complexity
Low
Privileges
None
User interaction
Required
Confidentiality
Low
Integrity
Low
Availability
None
Scope
Changed
Exploitation
Is it being used?
Exploit prediction (EPSS)0.4% · higher than 28% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
DI
Discourse · Discourse
3.1.0 · source: NVD
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2023-26040
CVE.org
https://www.cve.org/CVERecord?id=CVE-2023-26040
Patch
https://github.com/discourse/discourse/commit/a373bf2a01488c206e7feb28a9d2361b22ce6e70
Vendor Advisory
https://github.com/discourse/discourse/security/advisories/GHSA-ccfc-qpmp-gq87
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