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CVE-2019-12469

21
FAUCET Score

CVE-2019-12469 is an Incorrect Access Control vulnerability affecting MediaWiki versions up to 1.32.1, which exposes suppressed usernames or login information in Special:EditTags. With a CVSS score of 6.5 (Medium), this vulnerability can be exploited remotely with low privileges, leading to high confidentiality impact by revealing sensitive user data. There is no evidence of active exploitation, public exploit code (Metasploit, Nuclei, ExploitDB), or significant community discussion or media coverage surrounding this CVE. Patches are available in MediaWiki versions 1.32.2, 1.31.2, 1.30.2, and 1.27.6.

Impacted Technologies

VendorProductVersion(s)CPE
< 1.27.6CPE matchmatch criteria
cpe:2.3:a:mediawiki:mediawiki:*:*:*:*:*:*:*:*
>= 1.27.7, < 1.30.2CPE matchmatch criteria
cpe:2.3:a:mediawiki:mediawiki:*:*:*:*:*:*:*:*
>= 1.31.0, < 1.31.2CPE matchmatch criteria
cpe:2.3:a:mediawiki:mediawiki:*:*:*:*:*:*:*:*
>= 1.32.0, < 1.32.2CPE matchmatch criteria
cpe:2.3:a:mediawiki:mediawiki:*:*:*:*:*:*:*:*
9.0CPE matchmatch criteria
cpe:2.3:o:debian:debian_linux:9.0:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 3.0

6.5MEDIUM

CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N

Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
LOW
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
NONE
Availability Impact
NONE
Exploitability Score
2.8
Impact Score
3.6
CvssVersion
3.0

Exploit Intelligence

EPSS Score
1.41%
Probability of exploitation in next 30 days
EPSS Percentile
69.9%
Percentile rank of EPSS score among Peer Group
As of 2026-07-28
Model: v2026.06.15
This CVE's current EPSS score of 0.0141 is in the 84th percentile among its peer group of 21,977 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.0 Reddit, 0.1 Bluesky, 0.0 Mastodon, and 0.1 GitHub mentions.

Media Mentions

No media coverage found for this CVE.

The average CVE in this peer group has 0.0 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.

Remediation

Patch Available

Vendor Patches (4)

composerpatch availablevia ghsa
Product: mediawiki/coreFixed in: 1.27.6
composerpatch availablevia ghsa
Product: mediawiki/coreFixed in: 1.30.2
composerpatch availablevia ghsa
Product: mediawiki/coreFixed in: 1.31.2
composerpatch availablevia ghsa
Product: mediawiki/coreFixed in: 1.32.2

Vendor Advisories (1)

composerGHSA-x3fr-w7r5-x7rgmedium

MediaWiki Incorrect Access Control vulnerability

May 24, 2022

References

lists.wikimedia.org / pipermail/wikitech-l/2019-June/092152.html
Mailing ListRelease NotesVendor Advisory
phabricator.wikimedia.org / T222036
Vendor Advisory
seclists.org / bugtraq/2019/Jun/12
Issue TrackingMailing ListThird Party Advisory
debian.org / security/2019/dsa-4460
Third Party Advisory