CVE-2021-36128 Missing authorization in n/a
Attackers can bypass suppression blocks in MediaWiki CentralAuth due to improper implementation of autoblocks, allowing unauthorized access.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- Available
What is CVE-2021-36128?
CVE-2021-36128 is a critical missing authorization vulnerability in Mediawiki Mediawiki, published on 2 Jul 2021. An attacker can exploit it over the internet without logging in, with no action from the victim.
Official description
An issue was discovered in the CentralAuth extension in MediaWiki through 1.36. Autoblocks for CentralAuth-issued suppression blocks are not properly implemented.
Weakness: CWE-755
Which versions are affected by CVE-2021-36128?
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-2021-36128?
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-2021-36128 being exploited?
There is no known exploitation of CVE-2021-36128 in the wild and no public exploit code.
Other vulnerabilities in Mediawiki Mediawiki
Sources
Also known as BIT-mediawiki-2021-36128, GHSA-v83p-2pcp-wwg6.