---
id: "CVE-2026-116892"
kind: "vulnerability"
aliases: ["CVE-2026-116892"]
title: "Semantic MediaWiki: reflected XSS in Special:Search lets attackers run script"
severity: "medium"
cvss: 6.1
epss: null
exploited: false
status: "open"
category: "package"
products: []
ecosystems: []
tags: ["mediawiki", "package", "self-hosted", "semantic-mediawiki"]
not_affected_if: ["version-7.3.1-or-later"]
published_at: "2026-10-27T11:17:31+00:00"
first_seen_at: "2026-10-27T11:31:27+00:00"
updated_at: "2026-10-27T11:31:58+00:00"
sources: [{"source": "nvd", "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-116892", "first_seen_at": "2026-10-27T11:31:27+00:00"}]
---

# Semantic MediaWiki: reflected XSS in Special:Search lets attackers run script

Semantic MediaWiki versions 3.1.0 through 7.3.0 fail to escape the search parameter on the extended Special:Search profile, so a crafted URL with SVG event handlers is reflected into the page. A visitor who opens such a link runs attacker script in the wiki's origin.

_Summary, check and fix written by a model from the sources; labelled as such._

## How to check

- Check the installed Semantic MediaWiki version in the wiki's Special:Version page or in `composer.lock` / `extension.json`
- Look for the `smw` search profile being enabled on Special:Search

## Fix

- Upgrade Semantic MediaWiki to `7.3.1` or later
- Until upgraded, unknown whether a configuration change blocks the profile

## Timeline

- 2026-10-27T11:31:27+00:00 nvd https://nvd.nist.gov/vuln/detail/CVE-2026-116892

## From the sources

SemanticMediaWiki from 3.1.0 before 7.3.1 contains a reflected cross-site scripting vulnerability that allows unauthenticated attackers to inject markup through the search parameter of the extended Special:Search profile. Attackers can send visitors crafted URLs using the smw profile with SVG event handlers, which ProfileForm::profile_sheet inserts unescaped into a pre element, executing script in the wiki origin.

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_Free to read at a human pace. An API with keys and an MCP server are in preparation; early access: hello@infrastack.ai_