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CVE-2026-126560VulnerabilityPublished

Semantic MediaWiki 3.0.0 before 7.4.1 contains a stored cross-site scripting vulnerability in the DataTables

Source GCVE Database

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Authoritative record:CVE-2026-126560· Medium 5.1

Not known to be exploited · CVSS 5.1 Medium : upgrade to 7.4.1 when convenient.

Data as of 11 Nov 2026, 04:37 UTC

CVSS 4.0 base score
5.1Medium
How severe the flaw is on the 0–10 CVSS scale.

Thin evidence

One scorer or none
CVSS scores by source
CNA (VulnCheck)CVSS 4.05.1
CNA (VulnCheck)CVSS 3.15.4
Patch
Available – fixed in 7.4.1
CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:P/VC:L/VI:L/VA:N/SC:L/SI:L/SA:N

Exploitation evidence

  1. Disclosed: evidence found.

    CVE published 11 Nov 2026

  2. Detectable: no evidence on record.

    No public nuclei template indexed

  3. Weaponized: no evidence on record.

    No public exploit code indexed in Metasploit or Exploit-DB

  4. Exploited in the wild: no evidence on record.

    Not in CISA KEV and no source reports exploitation

  5. Observed by OffSeq Mirage: no evidence on record.

    No attack traffic recorded by OffSeq Mirage sensors

A missing step is not evidence of safety. Sources: cve.org (opens in a new tab), the Metasploit, Exploit-DB and nuclei-templates index as of 10 Nov 2026.

What to do

Upgrade SemanticMediaWiki to 7.4.1.

Affected software

ProductAffectedFixed in
SemanticMediaWikiSemanticMediaWikiAffected
  • >=3.0.0 <7.4.1
Fixed in
  • 7.4.1
PackagistSemanticMediaWikipkg:composer/SemanticMediaWikiOther threatsAffected
  • >=3.0.0 <7.4.1
Fixed in
  • 7.4.1

Check your own hosts for these packages with threat-finder (opens in a new tab), our free open-source scanner.

AI-suggested

A fix is available in Semantic MediaWiki version 7.4.1. Users should upgrade to version 7.4.1 or later to remediate this vulnerability. No additional mitigation steps are indicated by the vendor advisory.

Description

Semantic MediaWiki versions from 3.0.0 up to but not including 7.4.1 contain a stored cross-site scripting (XSS) vulnerability in the DataTables integration. This flaw allows users with page-edit rights to inject HTML entity-encoded markup into data-search or data-filter cell attributes, which can execute scripts in the browsers of viewers, including administrators.

References

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