CVE-2019-16738 json
MediaWiki information disclosure
published 7y ago modified 4mo ago also GHSA-7hwr-f745-5rwq , EUVD-2022-3016
- cvss
- 5.3
- version 3.1, NVD
- cisa kev
- Not listed
- not in CISA's catalog
- epss
- 1.8%
- EPSS 1.8% chance of exploitation in 30 days, percentile 78%
- public exploits
- 0
- none known
Summary
In MediaWiki through 1.33.0, Special:Redirect allows information disclosure of suppressed usernames via a User ID Lookup.
Patch / fix
- packagist mediawiki/core 1.31.4, 1.32.4, 1.33.1
- mediawiki mediawiki 1.31.4, 1.32.4, 1.33.1
- mediawiki Debian 14, Debian 13, Debian 12 1:1.31.4-1
debian advisories DEBIAN-CVE-2019-16738
- phabricator.wikimedia.org/T230402 advisory
Is CVE-2019-16738 in your dependencies? Fencer shows which of your repositories are affected as soon as an advisory lands, and opens the fix as a pull request.
Check with FencerVendor advisories
What the vendors themselves say about their products: affected, fixed or not affected, and what to do.
red hat product security vex CVE-2019-16738 updated cvss 4.3
mediawiki: suppressed username information disclosure via Special:Redirect
-
Red Hat OpenShift Container Platform 3.9 mediawiki123 Red Hat OpenShift Container Platform 3.10 mediawikiaffected: no fix planned “Out of support scope”
-
Red Hat OpenShift Container Platform 3.11 mediawiki Red Hat OpenShift Container Platform 4 mediawikiaffected: no fix planned “Will not fix”
Red Hat CSAF VEX © Red Hat, Inc., from https://security.access.redhat.com/data/csaf/v2/vex/; changed: reduced to product statuses and remediations. CC BY 4.0 · csaf
Exploit prediction
1.77% chance of exploitation in the next 30 days, higher than 78% of all scored CVEs (FIRST EPSS, 2026-11-09).
Exploits and checks
- phabricator.wikimedia.org https://phabricator.wikimedia.org/T230402 referenced PoC, tagged "exploit" by a source, unverified
CVSS scores
| assigned by | version | score | vector |
|---|---|---|---|
| NVD | 3.1 | 5.3 | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N |
| NVD | 2.0 | 5.0 | AV:N/AC:L/Au:N/C:P/I:N/A:N |
| GitHub | 3.1 | 5.3 | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N |
Affected packages
| ecosystem | package | affected | fixed in |
|---|---|---|---|
| packagist | mediawiki/core | >=1.31.0, <1.31.4 >=1.32.0, <1.32.4 >=1.33.0, <1.33.1 |
1.31.4 1.32.4 1.33.1 |
Classification
References
-
phabricator.wikimedia.org
/T230402
web, exploit, issue-tracking, patch, third-party-advisory
-
lists.fedoraproject.org
/archives/list/package-announce%40lists.fedoraproject.org/message/7OMG3BMUHGWTAPYTK2NXM6CXF6FYLOUO/
vendor-advisory, broken-link
-
debian.org
/security/2019/dsa-4545
vendor-advisory, web, third-party-advisory
-
lists.fedoraproject.org
/archives/list/package-announce%40lists.fedoraproject.org/message/QBAOLXETM5BOYQG6OQVHGB2LNLZUXVN6/
vendor-advisory, broken-link
-
seclists.org
/bugtraq/2019/Oct/32
mailing-list, web, third-party-advisory
-
nvd.nist.gov
/vuln/detail/CVE-2019-16738
advisory
-
github.com
/FriendsOfPHP/security-advisories/blob/master/mediawiki/core/CVE-2019-16738.yaml
web
-
github.com
/wikimedia/mediawiki
package
-
lists.fedoraproject.org
/archives/list/package-announce%40lists.fedoraproject.org/message/7OMG3BMUHGWTAPYTK2NXM6CXF6FYLOUO
web
-
lists.fedoraproject.org
/archives/list/package-announce%40lists.fedoraproject.org/message/QBAOLXETM5BOYQG6OQVHGB2LNLZUXVN6
web
-
lists.fedoraproject.org
/archives/list/package-announce@lists.fedoraproject.org/message/7OMG3BMUHGWTAPYTK2NXM6CXF6FYLOUO
web
-
lists.fedoraproject.org
/archives/list/package-announce@lists.fedoraproject.org/message/QBAOLXETM5BOYQG6OQVHGB2LNLZUXVN6
web
Sources
- CVE List CVE-2019-16738
- GitHub Advisory GHSA-7hwr-f745-5rwq
- NVD CVE-2019-16738
Fencer Intel keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.