CVE-2023-1920 WP Fastest Cache <= 1.1.2 - Cross-Site Request Forgery via 'wpfc_purgecache_varnish_callback'

Medium 4.3 Published Updated

Unauthenticated attackers can purge the Varnish cache by tricking administrators into clicking a link due to missing nonce validation.

Exploited in the wild
Not known
Login needed
Not needed
Attackable
Over the internet
Victim action needed
A user has to click or open something
Fix
None listed

What is CVE-2023-1920?

CVE-2023-1920 is a medium-severity vulnerability in emrevona WP Fastest Cache – WordPress Cache Plugin, published on 6 Apr 2023. An attacker can exploit it over the internet without logging in, and only if a user opens a file or follows a link.

Official description

The WP Fastest Cache plugin for WordPress is vulnerable to Cross-Site Request Forgery in versions up to, and including, 1.1.2. This is due to missing or incorrect nonce validation on the wpfc_purgecache_varnish_callback function. This makes it possible for unauthenticated attackers to purge the varnish cache via a forged request granted they can trick a site administrator into performing an action such as clicking on a link.

Weakness: CWE-352

Which versions are affected by CVE-2023-1920?

It affects 1 product.

Products include Wpfastestcache Wp Fastest Cache.

How do I fix CVE-2023-1920?

No fix has been published for CVE-2023-1920 yet. Limit exposure of the affected software until one is available.

Is CVE-2023-1920 being exploited?

There is no known exploitation of CVE-2023-1920 in the wild and no public exploit code.

Sources

Also known as GHSA-rpc7-j8hm-pc2q.

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