Medium severity · published Oct 27, 2026
CVE-2026-116875
SemanticMediaWiki 3.0.0 before 7.3.1 Reflected XSS via Special:Ask Separator Parameters
New
6.1
CVSS
0.2%
EPSS
No
On KEV
Description
SemanticMediaWiki from 3.0.0 before 7.3.1 contains a reflected cross-site scripting vulnerability in Special:Ask, which outputs separator parameters (sep, propsep, valuesep, delim, separator) without HTML escaping in list, category, DSV, and CSV result printers. Unauthenticated attackers can send victims crafted Special:Ask links using request_type=raw or request_type=special_page to execute JavaScript in the wiki's origin, stealing sessions or CSRF tokens.
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)0.2% · higher than 6% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
SE
SemanticMediaWiki · SemanticMediaWiki
3.0.0 before 7.3.1 · source: vendor
SM
Semantic Mediawiki · Semantic-mediawiki
3.0.0 before 7.3.1 · source: NVD
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2026-116875
CVE.org
https://www.cve.org/CVERecord?id=CVE-2026-116875
github.com
https://github.com/SemanticMediaWiki/SemanticMediaWiki/security/advisories/GHSA-3v2c-r7rx-frc8
www.vulncheck.com
https://www.vulncheck.com/advisories/semanticmediawiki-3.0.0-before-7.3.1-reflected-xss-via-special-ask-separator-parameters
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