CVE-2021-24859 User Meta Shortcodes <= 0.5 - Contributor+ Unauthorized Arbitrary User Metadata Access
Contributors can access arbitrary user metadata, including password hashes, due to missing authorization checks in the User Meta Shortcodes plugin.
- Exploited in the wild
- Not known
- Login needed
- Any signed-in user
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2021-24859?
CVE-2021-24859 is a medium-severity missing authorization vulnerability in Unknown User meta shortcodes, published on 13 Dec 2021. Any signed-in user can exploit it over the network, with no action from the victim.
Official description
The User Meta Shortcodes WordPress plugin through 0.5 registers a shortcode that allows any user with a role as low as contributor to access other users metadata by specifying the user login as a parameter. This makes the WP instance vulnerable to data extrafiltration, including password hashes
Weakness: CWE-284
Which versions are affected by CVE-2021-24859?
It affects 1 product.
Products include User Meta Shortcodes Project User Meta Shortcodes.
How do I fix CVE-2021-24859?
No fix has been published for CVE-2021-24859 yet. Limit exposure of the affected software until one is available.
Upgrade, and check permissions on every request on the server, not only in the interface. More about Missing authorization.
Is CVE-2021-24859 being exploited?
There is no known exploitation of CVE-2021-24859 in the wild and no public exploit code.
Sources
Also known as GHSA-m96c-8jmv-4r54.