Vulnerability · Published Apr 21, 2026 · Assigned by INCIBE

CVE-2025-10354Reflected Cross-Site Scripting (XSS) in Semantic MediaWiki

Medium 5.1

In plain English

A medium-severity cross-site scripting in Semantic MediaWiki from Semantic MediaWiki. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 0.3% (higher than 21% of all known vulnerabilities).

Severity (CVSS 4.0)5.1Medium

Exploit odds (30 days)0.3%top 78.9% of all CVEs

Exploited in the wildNo reportsCISA SSVC: none

Attack toolingNoneno public tooling known

Official description

Cross-Site Scripting (XSS) vulnerability reflected in Semantic MediaWiki. This vulnerability allows an attacker to execute JavaScript code in the victim's browser by sending them a malicious URL using the '/index.php/Speciaal:GefacetteerdZoeken' endpoint parameter. This vulnerability can be exploited to steal sensitive user data, such as session cookies, or to perform actions on behalf of the user.

Affected products (as reported)

Vendor	Product	Versions
Semantic MediaWiki	Semantic MediaWiki	5.0.2

Weakness: CWE-79 · Vector: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:A/VC:N/VI:N/VA:N/SC:L/SI:L/SA:N

References

https://www.incibe.es/en/incibe-cert/notices/aviso/reflected-cross-site-scripting-xss-semantic-mediawiki patch