CVE-2021-24354 Simple 301 Redirects by BetterLinks - 2.0.0-2.0.3 - Arbitrary Plugin Installation

High 8.8 Published Updated

Authenticated users can install arbitrary plugins due to missing capability checks, potentially leading to code execution.

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-2021-24354?

CVE-2021-24354 is a high-severity missing authorization vulnerability in Unknown Simple 301 Redirects by BetterLinks, published on 14 Jun 2021. Any signed-in user can exploit it over the network, with no action from the victim.

Official description

A lack of capability checks and insufficient nonce check on the AJAX action in the Simple 301 Redirects by BetterLinks WordPress plugin before 2.0.4, made it possible for authenticated users to install arbitrary plugins on vulnerable sites.

Weakness: CWE-862

Which versions are affected by CVE-2021-24354?

It affects 1 product.

Products include Wpdeveloper Simple 301 Redirects.

How do I fix CVE-2021-24354?

No fix has been published for CVE-2021-24354 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-2021-24354 being exploited?

There is no known exploitation of CVE-2021-24354 in the wild and no public exploit code.

Sources

Also known as GHSA-w57v-wqq6-mfw3.

Is CVE-2021-24354 in your software?

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