CVE-2023-45363 in the critical feed json
MediaWiki Denial of Service vulnerability
published 2023-10-09 3 y ago modified 2026-06-17 4 mo ago also BIT-mediawiki-2023-45363 , EUVD-2023-2825 , GHSA-w5fx-cx7f-6vr9
- cvss
- 7.5
- version 3.1, CNA
- cisa kev
- Not listed
- not in CISA's catalog
- epss
- 23.8%
- EPSS 23.8% chance of exploitation in 30 days, percentile 97%
- public exploits
- 0
- none known
Summary
An issue was discovered in ApiPageSet.php in MediaWiki before 1.35.12, 1.36.x through 1.39.x before 1.39.5, and 1.40.x before 1.40.1. It allows attackers to cause a denial of service (unbounded loop and RequestTimeoutException) when querying pages redirected to other variants with redirects and converttitles set.
Patch / fix
- packagist mediawiki/core 1.35.12, 1.39.5, 1.40.1
- bitnami mediawiki 1.35.12, 1.39.5, 1.40.1
- mediawiki mediawiki 1.35.12, 1.39.5
- mediawiki Debian 12 1:1.39.5-1~deb12u1
- mediawiki Debian 14, Debian 13 1:1.39.5-1
debian advisories DEBIAN-CVE-2023-45363
CISA SSVC
- Exploitation
- none
- Automatable
- yes
- Technical impact
- partial
- Assessed
- 2 y ago
Exploit prediction
23.78% chance of exploitation in the next 30 days, higher than 97% of all scored CVEs (FIRST EPSS, 2026-11-08).
Exploits and checks
- phabricator.wikimedia.org https://phabricator.wikimedia.org/T333050 referenced PoC, tagged "exploit" by a source, unverified
CVSS scores
| assigned by | version | score | vector |
|---|---|---|---|
| CISA ADP | 3.1 | 7.5 | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H |
| GitHub | 3.1 | 7.5 | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H |
| NVD | 3.1 | 7.5 | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H |
| CNA | 3.1 | 7.5 | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H |
| OSV | 3.1 | 7.5 | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H |
Affected packages
| ecosystem | package | affected | fixed in |
|---|---|---|---|
| packagist | mediawiki/core | <1.35.12 >=1.36.0, <1.39.5 >=1.40.0, <1.40.1 |
1.35.12 1.39.5 1.40.1 |
| bitnami | mediawiki | <1.35.12 >=1.36.0, <1.39.5 >=1.40.0, <1.40.1 |
1.35.12 1.39.5 1.40.1 |
Classification
- Weakness
-
- CWE-835 Loop with Unreachable Exit Condition
References
-
github.com
/wikimedia/mediawiki/commit/24c3ef2474c6daa20ed48168d46196a55346dfd8
web
-
phabricator.wikimedia.org
/T333050
web, exploit, third-party-advisory, vendor-advisory
-
debian.org
/security/2023/dsa-5520
vendor-advisory, web, third-party-advisory
-
lists.debian.org
/debian-lts-announce/2023/11/msg00027.html
mailing-list, web
-
nvd.nist.gov
/vuln/detail/CVE-2023-45363
advisory, web
-
github.com
/wikimedia/mediawiki
package
Sources
- CVE List CVE-2023-45363
- GitHub Advisory GHSA-w5fx-cx7f-6vr9
- NVD CVE-2023-45363
- OSV BIT-mediawiki-2023-45363
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