LiveActive security incident?Get immediate response
CVE Record

CVE-2019-12470: Wikimedia MediaWiki through 1.32.1 has Incorrect Access Control.

Wikimedia MediaWiki through 1.32.1 has Incorrect Access Control. Suppressed log in RevisionDelete page is exposed. Fixed in 1.32.2, 1.31.2, 1.30.2 and 1.27.6.

UnknownCVSS not scoredNot KEV-listedUpdated
Discuss exposureBack to CVEs
Glexia's TakeAutomated analysismoderate

Security readout for executives and security teams

Plain-English summary

MediaWiki versions through 1.32.1 could expose suppressed log information on the RevisionDelete page. Suppressed logs are normally restricted, so the business concern is unauthorized disclosure of sensitive moderation or administrative history. The source bundle names fixed MediaWiki releases, but does not provide CVSS scoring or evidence of active exploitation.

Executive priority

Prioritize remediation for public or sensitive MediaWiki sites because the issue concerns restricted log visibility. Urgency is moderate: fixes are available, but the bundle provides no CVSS score or active exploitation evidence.

Technical view

CVE-2019-12470 is an incorrect access control flaw in Wikimedia MediaWiki through 1.32.1. The described impact is exposure of suppressed log data in the RevisionDelete page. The CVE states fixes are available in 1.32.2, 1.31.2, 1.30.2, and 1.27.6.

Likely exposure

Exposure is most likely in self-hosted MediaWiki deployments running versions through 1.32.1, especially where RevisionDelete or suppressed log workflows are used. Debian-packaged MediaWiki deployments should be checked against DSA-4460.

Exploitation context

The provided sources do not show CISA KEV listing or active exploitation. They describe a security update and issue record, not public exploitation details. Treat this as a confidentiality and access-control issue until affected MediaWiki instances are upgraded or verified fixed.

Researcher notes

Evidence is limited to advisory-level detail. The key technical fact is suppressed log exposure via RevisionDelete due to incorrect access control. Do not assume exploitability conditions, authentication requirements, or affected extensions beyond the cited MediaWiki version range.

Mitigation direction

  • Upgrade MediaWiki to 1.32.2, 1.31.2, 1.30.2, 1.27.6, or later supported guidance.
  • Apply Debian DSA-4460 updates for Debian-packaged MediaWiki deployments.
  • Review Wikimedia advisory and Phabricator issue for deployment-specific guidance.
  • Confirm administrative and suppression interfaces follow least-privilege access policies.
  • Check vendor guidance if running forks, extensions, or unsupported MediaWiki branches.

Validation and detection

  • Inventory all MediaWiki instances and record exact installed versions.
  • Verify no production instance runs MediaWiki through 1.32.1 without the named fix.
  • For Debian systems, confirm the DSA-4460 package update is installed.
  • Review access logs for unusual RevisionDelete or suppressed-log access around the remediation window.
  • Document whether suppressed log data could have been exposed before patching.
Prepared
Confidence
medium
Sources
6

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

These mappings and lookup hints may be relevant to the vulnerability behavior, CWE, affected product, or exposure path. Glexia-inferred context is not an official MITRE, ATT&CK, CWE, or CVE Program mapping.

ATT&CK lookup starting points

Use these exact CWE pages and searches to review the Glexia ATT&CK library from this CVE's weakness and description context.

cve · low confidence lookup

CVE-2019-12470 mapping review

Open the CVE-to-ATT&CK bridge for reviewed, inferred, or future official mappings tied to this CVE.

Open ATT&CK lookup
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.