CVE-2021-36132 json
An issue was discovered in the FileImporter extension in MediaWiki through 1.36.
published 2021-07-02 5 y ago modified 2026-06-17 4 mo ago also BIT-mediawiki-2021-36132 , EUVD-2021-22764
- cvss
- 8.8
- version 3.1, NVD
- cisa kev
- Not listed
- not in CISA's catalog
- epss
- 1.0%
- EPSS 1.0% chance of exploitation in 30 days, percentile 63%
- public exploits
- 0
- none known
Summary
An issue was discovered in the FileImporter extension in MediaWiki through 1.36. For certain relaxed configurations of the $wgFileImporterRequiredRight variable, it might not validate all appropriate user rights, thus allowing a user with insufficient rights to perform operations (specifically file uploads) that they should not be allowed to perform.
Patch / fix
- bitnami mediawiki 1.36.1
Exploit prediction
1.02% chance of exploitation in the next 30 days, higher than 63% of all scored CVEs (FIRST EPSS, 2026-11-08).
Exploits and checks
- phabricator.wikimedia.org https://phabricator.wikimedia.org/T280590 referenced PoC, tagged "exploit" by a source, unverified
CVSS scores
| assigned by | version | score | vector |
|---|---|---|---|
| NVD | 3.1 | 8.8 | CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H |
| NVD | 2.0 | 6.0 | AV:N/AC:M/Au:S/C:P/I:P/A:P |
| OSV | 3.1 | 8.8 | CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H |
Affected packages
| ecosystem | package | affected | fixed in |
|---|---|---|---|
| bitnami | mediawiki | <1.36.1 |
1.36.1 |
Classification
- Weakness
-
- CWE-863 Incorrect Authorization
References
-
phabricator.wikimedia.org
/T280590
exploit, patch, vendor-advisory, web
-
gerrit.wikimedia.org
/r/q/I8ff2a67abd2c118a3469e4410eac2a451bfa76c3
patch, vendor-advisory, web
-
nvd.nist.gov
/vuln/detail/CVE-2021-36132
web
Sources
- CVE List CVE-2021-36132
- NVD CVE-2021-36132
- OSV BIT-mediawiki-2021-36132
Fencer Vulns 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.