---
id: CVE-2026-116874
title: >-
  SemanticMediaWiki 3.1.0 before 7.3.1 Reflected XSS via JsonResultPrinter
  Default Parameter
summary: >-
  SemanticMediaWiki from 3.1.0 before 7.3.1 contains a reflected cross-site
  scripting vulnerability that allows unauthenticated attackers to inject
  scripts through the unescaped default parameter in JsonResultPrinter.
  Attackers can lure vi…
severity: medium
cvss: 6.1
cvssVector: 'CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N'
cvssSource: cna
cwe:
  - CWE-79
vendor: SemanticMediaWiki
product: SemanticMediaWiki
affected:
  - SemanticMediaWiki >= 3.1.0 < 7.3.1
ssvc:
  exploitation: none
  automatable: 'yes'
  technicalImpact: partial
  timestamp: '2026-10-27T13:46:17.918417Z'
published: '2026-10-27'
updated: '2026-10-27'
sourceUpdated: '2026-10-27T14:13:33.657Z'
source: CVEORG
sourceUrl: 'https://www.cve.org/CVERecord?id=CVE-2026-116874'
references:
  - url: >-
      https://github.com/SemanticMediaWiki/SemanticMediaWiki/security/advisories/GHSA-574v-j8hf-88h3
    label: GitHub Security Advisory (GHSA-574v-j8hf-88h3)
  - url: >-
      https://www.vulncheck.com/advisories/semanticmediawiki-3.1.0-before-7.3.1-reflected-xss-via-jsonresultprinter-default-parameter
    label: >-
      VulnCheck Advisory: SemanticMediaWiki 3.1.0 before 7.3.1 Reflected XSS via
      JsonResultPrinter Default Parameter
tags:
  - cve.org
ingestedAt: '2026-10-27T16:11:59.439Z'
---

## Overview

SemanticMediaWiki from 3.1.0 before 7.3.1 contains a reflected cross-site scripting vulnerability that allows unauthenticated attackers to inject scripts through the unescaped default parameter in JsonResultPrinter. Attackers can lure victims to a crafted Special:Ask link with a zero-result query and request_type=special_page, executing JavaScript in the wiki origin to steal sessions or CSRF tokens.

## Affected

- `SemanticMediaWiki >= 3.1.0 < 7.3.1`

## Remediation

Refer to the linked advisories for vendor-supplied fixes and affected version ranges.