CVE-2023-5583 WP Simple Galleries <= 1.34 - Authenticated (Contributor+) PHP Object Injection

High 8.8 Published Updated

Authenticated attackers can exploit PHP object injection in WP Simple Galleries to potentially execute code or access data if a POP chain exists.

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-2023-5583?

CVE-2023-5583 is a high-severity unsafe deserialization vulnerability in maca134 WP Simple Galleries, published on 30 Oct 2023. Any signed-in user can exploit it over the network, with no action from the victim.

Official description

The WP Simple Galleries plugin for WordPress is vulnerable to PHP Object Injection in versions up to, and including, 1.34 via deserialization of untrusted input from the 'wpsimplegallery_gallery' post meta via 'wpsgallery' shortcode. This allows authenticated attackers, with contributor-level permissions and above, to inject a PHP Object. No POP chain is present in the vulnerable plugin. If a POP chain is present via an additional plugin or theme installed on the target system, it could allow the attacker to delete arbitrary files, retrieve sensitive data, or execute code.

Weakness: CWE-502

Which versions are affected by CVE-2023-5583?

It affects 1 product.

Products include Maca134 Wp Simple Galleries.

How do I fix CVE-2023-5583?

No fix has been published for CVE-2023-5583 yet. Limit exposure of the affected software until one is available.

Upgrade, and only deserialise data from trusted sources or with an allow-list of types. More about Unsafe deserialization.

Is CVE-2023-5583 being exploited?

There is no known exploitation of CVE-2023-5583 in the wild and no public exploit code.

Sources

Also known as GHSA-c6fh-27x8-5p84.

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