CVE-2026-116875
Received Received - Intake

Reflected XSS in SemanticMediaWiki Special:Ask

Publication date: 2026-10-27

Last updated on: 2026-10-27

Assigner: VulnCheck

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 Scores

EPSS Scores

Probability:
Percentile:

Meta Information

Published
2026-10-27
Last Modified
2026-10-27
Generated
2026-10-27
AI Q&A
2026-10-27
EPSS Evaluated
N/A
NVD
CVE-2026-116875
EUVD
EUVD-2026-110703

Affected Vendors & Products

Showing 1 associated CPE
Vendor Product Version / Range
SemanticMediaWiki SemanticMediaWiki 3.0.0

Helpful Resources

Exploitability

CWE
CWE Icon
KEV
KEV Icon
CWE ID Description
CWE-79 The product does not neutralize or incorrectly neutralizes user-controllable input before it is placed in output that is used as a web page that is served to other users.

Attack-Flow Graph

AI Quick Actions

Instant insights powered by AI
Executive Summary

CVE-2026-116875 is a reflected cross-site scripting (XSS) vulnerability in SemanticMediaWiki versions 3.0.0 to 7.3.0. It occurs in Special:Ask when separator parameters like sep, propsep, valuesep, delim, and separator are not HTML-escaped in list, category, DSV, and CSV result printers. Attackers can craft malicious URLs to inject JavaScript into the wiki's origin.

Detection Guidance

Check SemanticMediaWiki versions between 3.0.0 and 7.3.0. Inspect Special:Ask links for separator parameters (sep, propsep, valuesep, delim, separator) in list, category, DSV, or CSV printers. Look for improper HTML escaping in responses.

Impact Analysis

An attacker could trick you into clicking a malicious link, executing JavaScript in your browser. This may steal your session cookies or CSRF tokens, allowing the attacker to impersonate you or perform actions on your behalf without your knowledge.

Mitigation Strategies

Upgrade SemanticMediaWiki to version 7.3.1 or later. Apply htmlspecialchars() escaping to separator parameters in affected printers. Disable request_type=raw and request_type=special_page in Special:Ask if not needed.

Chat Assistant

Ask questions about this CVE
Hi! I’m here to help you understand CVE-2026-116875. Ask me anything about the vulnerability, its impact, or mitigation strategies.
0/70

EPSS Chart