WordPress Infinite Scroll – Ajax Load More <= 5.5.3 - Cross-Site Request Forgery to PHAR Deserialization

Deserialization of Untrusted Data
CVE CVE-2022-2433
CVSS High (7.5)
Publicly Published August 22, 2022
Last Updated August 21, 2025
Researcher Rasoul Jahanshahi
Description

The WordPress Infinite Scroll – Ajax Load More plugin for WordPress is vulnerable to deserialization of untrusted input via the 'alm_repeaters_export' parameter in versions up to, and including 5.5.3. This makes it possible for unauthenticated users to call files using a PHAR wrapper, granted they can trick a site administrator into performing an action such as clicking on a link, that will deserialize and call arbitrary PHP Objects that can be used to perform a variety of malicious actions granted a POP chain is also present. It also requires that the attacker is successful in uploading a file with the serialized payload.

References

1 affected software package

Software Type Plugin
Software Slug ajax-load-more (view on wordpress.org)
Patched? Yes
Affected Version
  • <= 5.5.3
Patched Version
  • 5.5.4
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