CVE-2026-15962 Deserialization in Fluent Forms Pro Add On Pack
Authenticated attackers can exploit PHP object injection to change user passwords and take over administrator accounts if specific integrations are enabled.
- 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-2026-15962?
CVE-2026-15962 is a high-severity unsafe deserialization vulnerability in techjewel Fluent Forms Pro Add On Pack, published on 26 Jul 2026. Any signed-in user can exploit it over the network, with no action from the victim.
Official description
The Fluent Forms Pro Add On Pack plugin for WordPress is vulnerable to PHP Object Injection in all versions up to, and including, 6.2.6 via deserialization of untrusted input. This makes it possible for authenticated attackers, with Subscriber-level access and above, to inject a PHP Object. The additional presence of a POP chain allows attackers to change user passwords and potentially take over administrator accounts. Note: This can only be exploited if user update integration is enabled and a user meta field is mapped.
Weakness: CWE-502
Which versions are affected by CVE-2026-15962?
How do I fix CVE-2026-15962?
No fix has been published for CVE-2026-15962 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-2026-15962 being exploited?
There is no known exploitation of CVE-2026-15962 in the wild and no public exploit code.
Sources
Also known as GHSA-2hhm-rw5g-m2vq.