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CVE Record

CVE-2019-12469: MediaWiki through 1.32.1 has Incorrect Access Control.

MediaWiki through 1.32.1 has Incorrect Access Control. Suppressed username or log in Special:EditTags are exposed. Fixed in 1.32.2, 1.31.2, 1.30.2 and 1.27.6.

UnknownCVSS not scoredNot KEV-listedUpdated
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Glexia's TakeAutomated analysismoderate

Security readout for executives and security teams

Plain-English summary

This issue exposed information MediaWiki intended to suppress. In affected versions, usernames or logs hidden from normal view could appear through Special:EditTags. The main risk is confidentiality loss around moderation, privacy, or abuse-handling records, not server takeover.

Executive priority

Prioritize remediation where MediaWiki stores sensitive user, moderation, or abuse-handling records. This is not described as remote code execution, but it can expose information that was deliberately hidden for safety or privacy reasons.

Technical view

MediaWiki through 1.32.1 had incorrect access control in Special:EditTags, exposing suppressed usernames or log information. The CVE states fixes were released in 1.32.2, 1.31.2, 1.30.2, and 1.27.6. No CVSS, CWE, or KEV exploitation evidence is provided in the source bundle.

Likely exposure

Exposure is most likely on MediaWiki sites running through 1.32.1, especially where suppression features are used for privacy, moderation, or incident-response records. Source data does not identify specific downstream products beyond MediaWiki and Debian packaging references.

Exploitation context

The bundle does not report active exploitation, public exploit tooling, or KEV listing. The issue appears to be an access-control information disclosure through a special page, with impact depending on whether suppressed users or logs exist on the wiki.

Researcher notes

The public bundle is narrow: it identifies the affected component, exposure type, and fixed versions, but does not provide CVSS, CWE, exploit status, or detailed patch mechanics. Avoid expanding scope beyond MediaWiki unless supported by local package inventory.

Mitigation direction

  • Upgrade MediaWiki to 1.32.2, 1.31.2, 1.30.2, 1.27.6, or later supported releases.
  • Apply Debian DSA-4460 packages where MediaWiki is managed through Debian.
  • Check Wikimedia and vendor guidance for branch-specific upgrade instructions.
  • Treat exposed suppression data as potentially sensitive and review privacy obligations internally.

Validation and detection

  • Inventory all MediaWiki instances and record exact versions.
  • Flag versions through 1.32.1 unless patched to the listed fixed releases.
  • Confirm Debian-managed hosts include the DSA-4460 security update.
  • Review whether suppression features and Special:EditTags are enabled or used.
  • Check access logs for unusual Special:EditTags access around sensitive moderation events.
Prepared
Confidence
high
Sources
5

Public sources used

Generated from the cited source records. This long-tail analysis has not been individually reviewed by a named human.

Potential ATT&CK relevance

Conservative CVE-to-ATT&CK context

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Vulnerability profileCVE Program record
Severity
Unknown
CVSS
Not scored
Known Exploited
No
Published
Official CVE source material

CNA and ADP enrichment extracted from CVE v5

These fields come from the CVE record and ADP containers, not from Glexia's Take. They preserve time-varying source decisions such as CISA SSVC, KEV status, CVSS metrics, and provider references.

0CVSS vectors
0Timeline events
0ADP providers
5Source links

CVSS and timeline data

No CVSS vectors or timeline events were available in the normalized CVE source material.

Source materials

Affected products

Products and packages named in the record

VendorProductVersion / packageStatus
n/an/an/aListed
Weakness

CWE details

No CWE listed

CWE links open Glexia weakness intelligence pages with official CWE context, developer remediation guidance, and related CVE mappings.