Vulnerability in 10up Distributor

[ Description ]Official description

10up Distributor before 2.3.2 contains a PHP object injection vulnerability that allows Contributor-level users to instantiate PHP objects by double unserializing distributed post meta. Attackers can store a serialized PHP string as meta, which set_meta() in includes/utils.php unserializes on the destination site, storing attacker-defined objects whose impact depends on loaded gadget classes.

[ Fixes ]Fixes and patches

No fix or interim patch is linked from our sources yet. Check the vendor references below and limit exposure of affected systems until a fix is available.

[ References ]References

• github.com/10up/distributor/blob/2.3.1/includes/utils.php
• github.com/10up/distributor/commit/7c57edb774d80534885ca6f2c46b95d333de6e5a
• github.com/10up/distributor/releases/tag/2.3.2
• github.com/10up/distributor/security/advisories/GHSA-wm53-9j85-ph6h
• www.vulncheck.com/advisories/10up-distributor-before-2.3.2-php-object-injection-via-set…