# CVE-2026-15962: techjewel Fluent Forms Pro Add On Pack PHP object injection

Source: https://junglewise.ai/threats/cve-2026-15962-techjewel-fluent-forms-pro-add-on-pack-php-object-injection  
Publisher: Junglewise Threat Intelligence, https://junglewise.ai/threats  
Published: 2026-07-26. Updated: 2026-07-26  
License: CC BY 4.0 with a link back

CVE-2026-15962 · Severity: high · CVSS 8.8 · Published 2026-07-26

The Fluent Forms Pro Add On Pack plugin for WordPress, which provides advanced form-building capabilities, contains a security flaw that allows logged-in users with basic permissions to execute malicious code. By exploiting this vulnerability, an attacker could change user passwords and take full control of administrator accounts. This risk is present only if the site has specific user update integrations enabled and configured.

Vendors: [WPManageNinja](https://junglewise.ai/threats/vendors/wpmanageninja).

## Quick answers

**Is CVE-2026-15962 exploited in the wild?** No. Junglewise Threat Intelligence has no report of CVE-2026-15962 being exploited in the wild.

**How severe is CVE-2026-15962?** High severity, with a CVSS score of 8.8, published 26 July 2026.

**Which products and versions are affected?** WPManageNinja Fluent Forms Pro Add On Pack up to, and including, 6.2.6.

**Is there a fix for CVE-2026-15962?** No fixed version is recorded yet. Check the vendor's advisory in the references below. If you run it, Junglewise drafts a mitigation that fits your setup and applies it once you approve, with senior security engineers behind it.

**How is CVE-2026-15962 attacked?** It is attacked over the network, in a software library.

**Am I affected by CVE-2026-15962?** Check whether you run WPManageNinja Fluent Forms Pro Add On Pack at an affected version. Junglewise does that check for you around the clock: connect your code, cloud and domains, and it matches new vulnerabilities like this one against what you actually run and tells you when one reaches you.

## Technical details

The Fluent Forms Pro Add On Pack plugin for WordPress is vulnerable to PHP Object Injection in versions up to and including 6.2.6. The vulnerability stems from the deserialization of untrusted input, which allows authenticated attackers with Subscriber-level permissions or higher to inject arbitrary PHP Objects. When combined with an existing POP (Property-Oriented Programming) chain, this can lead to unauthorized password changes and full administrative account takeover. Exploitation is conditional; it requires the 'user update integration' to be enabled and a user meta field to be mapped within the plugin settings.

## Affected products

- techjewel Fluent Forms Pro Add On Pack up to, and including, 6.2.6

## Timeline

- 2026-07-26: advisory: NVD publication date
- 2026-07-25: disclosed: Wordfence threat intelligence report

## References

- [https://fluentforms.com/](https://fluentforms.com/)
- [https://www.wordfence.com/threat-intel/vulnerabilities/id/b95ec70c-ac76-48fa-9d9d-01cf1983e504?source=cve](https://www.wordfence.com/threat-intel/vulnerabilities/id/b95ec70c-ac76-48fa-9d9d-01cf1983e504?source=cve)