CVE-2025-10354 PUBLISHED

Reflected Cross-Site Scripting (XSS) in Semantic MediaWiki

Assigner: INCIBE
Reserved: 12.09.2025 Published: 21.04.2026 Updated: 21.04.2026

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.

Metrics

CVSS 4.0

CVSS 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
CVSS Score: 5.1

Exploitability Metrics		Vulnerable System Impact Metrics		Subsequent System Impact Metrics
Attack Vector	Network	Confidentiality	None	Confidentiality	Low
Attack Complexity	Low	Integrity	None	Integrity	Low
Attack Requirements	None	Availability	None	Availability	None
Privileges Required	None
User Interaction	Active

CVSS 4.0

Product Status

Vendor	Semantic MediaWiki
Product	Semantic MediaWiki
Versions	Default: unaffected Version 5.0.2 is affected

Solutions

The vulnerability has been fixed by the Semantic MediaWiki team in version 5.0.2.

Credits

Gonzalo Aguilar García (6h4ack) finder

References

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

Problem Types

CWE-79 Improper neutralization of input during web page generation ('cross-site scripting') CWE