Medium severity · published Oct 25, 2026
CVE-2026-116206
YesWiki 4.2.0 before 4.7.0 Stored XSS via Comment Raw-HTML Syntax
New
6.4
CVSS
0.2%
EPSS
No
On KEV
Description
YesWiki from 4.2.0 before 4.7.0 contains a stored cross-site scripting vulnerability that allows authenticated users to inject script into comment bodies using the wakka raw-HTML syntax. Attackers can post comments via the /api/comments endpoint that render unescaped through the Twig raw filter, executing JavaScript in administrators' and visitors' sessions.
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:L/I:L/A:N
Attack vector
Network
Complexity
Low
Privileges
Low
User interaction
None
Confidentiality
Low
Integrity
Low
Availability
None
Scope
Changed
Exploitation
Is it being used?
Exploit prediction (EPSS)0.2% · higher than 5% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
YE
yeswiki · YesWiki
4.2.0 before 4.7.0 · source: vendor
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2026-116206
CVE.org
https://www.cve.org/CVERecord?id=CVE-2026-116206
github.com
https://github.com/YesWiki/yeswiki/security/advisories/GHSA-wq96-vjjh-hfc6
www.vulncheck.com
https://www.vulncheck.com/advisories/yeswiki-4.2.0-before-4.7.0-stored-xss-via-comment-raw-html-syntax
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