CVE-2021-36132 Missing authorization in n/a
Insufficient rights validation in MediaWiki FileImporter allows unauthorized users to upload files when specific relaxed configurations are used.
- Exploited in the wild
- Not known
- Login needed
- Any signed-in user
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- Available
What is CVE-2021-36132?
CVE-2021-36132 is a high-severity missing authorization vulnerability in Mediawiki Mediawiki, published on 2 Jul 2021. Any signed-in user can exploit it over the network, with no action from the victim.
Official description
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.
Weakness: CWE-863
Which versions are affected by CVE-2021-36132?
1 open source package ship an affected version, including mediawiki. It affects 1 product.
| Package | Affected | Fixed in |
|---|---|---|
mediawiki Bitnami | All versions | 1.36.1 |
Products include Mediawiki Mediawiki.
How do I fix CVE-2021-36132?
Upgrade mediawiki to 1.36.1 or later.
Upgrade, and check permissions on every request on the server, not only in the interface. More about Missing authorization.
Is CVE-2021-36132 being exploited?
There is no known exploitation of CVE-2021-36132 in the wild and no public exploit code.
Other vulnerabilities in Mediawiki Mediawiki
Sources
Also known as BIT-mediawiki-2021-36132, GHSA-hw5p-4jgw-wr5w.