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VulnerabilityPublished Updated

CVE-2024-23177: MediaWiki · Cross-site Scripting

Source CVE Database V5

0

Not known to be exploited · CVSS 6.1 Medium : upgrade to 1.40.2 when convenient.

Data as of 26 Oct 2026, 17:16 UTC

CVSS 3.1 base score
6.1Medium
How severe the flaw is on the 0–10 CVSS scale.
EPSS
0.4% chance of exploitation in 30 days – higher than 36% of CVEsExploit Prediction Scoring System: the likelihood attackers will use this flaw soon.
Patch
Available – fixed in 1.40.2
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N

Exploitation evidence

  1. Disclosed: evidence found.

    CVE published 12 Jan 2024

  2. Detectable: no evidence on record.

    No public nuclei template indexed

  3. Weaponised: 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 26 Oct 2026.

What to do

Upgrade org.mediawiki/mediawiki to 1.40.2.

Affected software

ProductAffectedFixed in
Mavenorg.mediawiki/mediawikipkg:maven/org.mediawiki/mediawikiOther threatsAffected
  • <1.40.2
Fixed in
  • 1.40.2

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

AI-suggested

European organizations should prioritize upgrading MediaWiki installations to version 1.40.2 or later, where the vulnerability is addressed. In the absence of an official patch, organizations can implement input validation and output encoding on the Special:PageStatistics page parameters to neutralize malicious scripts. Deploying web application firewalls (WAFs) with rules targeting XSS payloads specific to MediaWiki can provide temporary protection. Additionally, organizations should conduct user awareness training to reduce the risk of successful phishing attacks that could deliver malicious URLs exploiting this vulnerability. Monitoring web server logs for unusual requests to Special:PageStatistics with suspicious parameters can help detect attempted exploitation. Restricting access to the Special:PageStatistics page to trusted users only and applying the principle of least privilege to MediaWiki user roles will also reduce the attack surface. Regular security audits and vulnerability scanning of MediaWiki deployments are recommended to identify and remediate similar issues proactively.

Description

An issue was discovered in the WatchAnalytics extension in MediaWiki before 1.40.2. XSS can occur via the Special:PageStatistics page parameter.

References

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