CVE-2023-29141 json
X-Forwarded-For header allows brute-forcing autoblocked IP addresses
published 2023-03-31 3 y ago modified 2026-06-17 4 mo ago also BIT-mediawiki-2023-29141 , EUVD-2023-0887 , GHSA-5vj8-g3qg-4qh6
- cvss
- 9.8
- version 3.1, CNA
- cisa kev
- Not listed
- not in CISA's catalog
- epss
- 1.2%
- EPSS 1.2% chance of exploitation in 30 days, percentile 68%
- public exploits
- 0
- none known
Summary
An issue was discovered in MediaWiki before 1.35.10, 1.36.x through 1.38.x before 1.38.6, and 1.39.x before 1.39.3. An auto-block can occur for an untrusted X-Forwarded-For header.
Patch / fix
- packagist mediawiki/core 1.35.10, 1.38.6, 1.39.3
- bitnami mediawiki 1.35.10, 1.38.6, 1.39.3
- mediawiki mediawiki 1.35.10, 1.38.6, 1.39.3
- mediawiki Debian 12 1:1.39.4-1~deb12u1
- mediawiki Debian 14, Debian 13 1:1.39.4-1
debian advisories DEBIAN-CVE-2023-29141
Vendor advisories
What the vendors themselves say about their products: affected, fixed or not affected, and what to do.
red hat product security vex CVE-2023-29141 updated cvss 5.3
mediawiki: Auto-block can occur for an untrusted X-Forwarded-For header
-
Red Hat OpenShift Container Platform 3.11 mediawikiaffected: no fix planned “Out of support scope”
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
CISA SSVC
- Exploitation
- Proof of concept is public
- Automatable
- yes
- Technical impact
- total
- Assessed
- 20 mo ago
Exploit prediction
1.19% chance of exploitation in the next 30 days, higher than 68% of all scored CVEs (FIRST EPSS, 2026-11-08).
Exploits and checks
- phabricator.wikimedia.org https://phabricator.wikimedia.org/T285159 referenced PoC, tagged "exploit" by a source, unverified
CVSS scores
| assigned by | version | score | vector |
|---|---|---|---|
| CISA ADP | 3.1 | 9.8 | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H |
| GitHub | 3.1 | 9.8 | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H |
| NVD | 3.1 | 9.8 | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H |
| CNA | 3.1 | 9.8 | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H |
| OSV | 3.1 | 9.8 | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H |
Affected packages
| ecosystem | package | affected | fixed in |
|---|---|---|---|
| packagist | mediawiki/core | >=1.39.0, <1.39.3 >=1.38.0, <1.38.6 <1.35.10 |
1.39.3 1.38.6 1.35.10 |
| bitnami | mediawiki | <1.35.10 >=1.36.0, <1.38.6 >=1.39.0, <1.39.3 |
1.35.10 1.38.6 1.39.3 |
Classification
- Weakness
-
- CWE-444 Inconsistent Interpretation of HTTP Requests
References
-
phabricator.wikimedia.org
/T285159
exploit, web, issue-tracking, permissions-required
-
lists.fedoraproject.org
/archives/list/package-announce%40lists.fedoraproject.org/message/ZGK4NZPIJ5ET2ANRZOUYPCRIB5I64JR7/
vendor-advisory, web
-
lists.fedoraproject.org
/archives/list/package-announce%40lists.fedoraproject.org/message/ONWHGOBFD6CQAEGOP5O375XAP2N6RUHT/
vendor-advisory, web
-
debian.org
/security/2023/dsa-5447
vendor-advisory, web
-
gerrit.wikimedia.org
/r/plugins/gitiles/mediawiki/core/+/REL1_39/RELEASE-NOTES-1.39
web, release-notes
-
lists.debian.org
/debian-lts-announce/2023/08/msg00029.html
mailing-list, web
-
nvd.nist.gov
/vuln/detail/CVE-2023-29141
advisory, web
-
github.com
/wikimedia/mediawiki
package
-
lists.fedoraproject.org
/archives/list/package-announce@lists.fedoraproject.org/message/ONWHGOBFD6CQAEGOP5O375XAP2N6RUHT
web
-
lists.fedoraproject.org
/archives/list/package-announce@lists.fedoraproject.org/message/ZGK4NZPIJ5ET2ANRZOUYPCRIB5I64JR7
web
-
mediawiki.org
/wiki/Release_notes/1.35#MediaWiki_1.35.10
web
-
mediawiki.org
/wiki/Release_notes/1.38#MediaWiki_1.38.6
web
-
mediawiki.org
/wiki/Release_notes/1.39#MediaWiki_1.39.3
web
Sources
- CVE List CVE-2023-29141
- GitHub Advisory GHSA-5vj8-g3qg-4qh6
- NVD CVE-2023-29141
- OSV BIT-mediawiki-2023-29141
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