Home/CVE/In MediaWiki through 1.33.0, Special:Redirect allows information disclosure of suppressed usernames via a User ID Lookup
CVE

CVE-2019-16738

In MediaWiki through 1.33.0, Special:Redirect allows information disclosure of suppressed usernames via a User ID Lookup

In MediaWiki through 1.33.0, Special:Redirect allows information disclosure of suppressed usernames via a User ID Lookup.

MEDIUM · CVSS 5.3 EPSS 0.00415
Schedule remediation
  • Public exploit or PoC is available
Sigma rules0 YARA rules0
⬡

Weakness Classification

CWE-862Missing Authorization
▤

Affected Products & Versions

5
mediawiki>= 1.31.0 and < 1.31.4
mediawiki>= 1.32.0 and < 1.32.4
mediawiki>= 1.33.0 and < 1.33.1
fedoraproject fedoraall versions
debian linuxall versions
▤

Affected Packages

1
Language-ecosystem packages (from OSV) tied to this CVE, with the version that fixes it - the dependency-level detail NVD doesn’t carry.
Packagist mediawiki/core MEDIUM fixed in 1.31.4
⚠

Public Exploits & PoCs

1
pocphabricator.wikimedia.org · T230402phabricator.wikimedia.org
▣

Scoring & Timeline

5.3
MEDIUM · CVSS v3.1 · cve@mitre.org
View on NVD
Attack Vector
Network Adjacent Local Physical
Attack Complexity
Low High
Privileges Required
None Low High
User Interaction
None Required
Scope
Unchanged Changed
Confidentiality
None Low High
Integrity
None Low High
Availability
None Low High
Published to NVD26 Sep 2019 · 02:15 AM
CVSS VectorCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N
🔗

References & Sources

4
Source URLs (vendor pages, mailing lists, write-ups). Exploit/PoC links are in their own section above to avoid duplication.
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/7OMG3BMUHGWTAPYTK2NXM6CXF6FYLOUO/Broken Link
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/QBAOLXETM5BOYQG6OQVHGB2LNLZUXVN6/Broken Link
https://seclists.org/bugtraq/2019/Oct/32Mailing ListThird Party Advisory
https://www.debian.org/security/2019/dsa-4545Third Party Advisory
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