CVE-2026-111628

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.

CVSS 4.0

2.3CVSS:4.0/AV:N/AC:H/AT:P/PR:L/UI:N/VC:L/VI:L/VA:L/SC:N/SI:N/SA:N

CVSS 3.1

5.0CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:L/I:L/A:L

EPSS

0.3% chance of exploitation in the next 30 days; higher than 19% of CVEs (scores of 2026-10-25)

CWE

CWE-502

Published

2026-10-16

Modified

2026-10-23

Record from

the NVD, synced 2026-10-24

References

• https://github.com/10up/distributor/blob/2.3.1/includes/utils.php#L192-L200
• https://github.com/10up/distributor/commit/7c57edb774d80534885ca6f2c46b95d333de6e5a
• https://github.com/10up/distributor/releases/tag/2.3.2
• https://github.com/10up/distributor/security/advisories/GHSA-wm53-9j85-ph6h
• https://www.vulncheck.com/advisories/10up-distributor-before-2.3.2-php-object-injection-via-set-meta

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