# CVE-2026-73532

## Summary

- **CVE ID:** CVE-2026-73532
- **Severity:** CRITICAL
- **CVSS Score:** 9.8 (CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N)
- **CWE:** CWE-506
- **Published:** Aug 13, 2026
- **Last Modified:** Aug 14, 2026

## Description

Fluent Forms Pro 6.2.7 contains an embedded malicious code vulnerability introduced via a tampered plugin build served through a decommissioned update server. The tampered build introduced a rogue PHP file (libs/class-license-sync.php), loaded via a require_once directive added to fluentformpro.php, that established a backdoor REST API endpoint, dropped persistent PHP files in mu-plugins and uploads directories, installed a passwordless administrator account, and registered scheduled tasks that survived plugin removal.

## Affected Products

- WPManageNinja — Fluent Forms Pro (6.2.7)

## References

- [CNA](https://wpmanageninja.com/security-incident-on-31-july-2026/)
- [CNA](https://wordpress.org/plugins/fluentform/)
- [CNA](https://patchstack.com/database/wordpress/plugin/fluentformpro/vulnerability/wordpress-fluent-forms-pro-add-on-pack-plugin-6-2-7-6-2-7-remote-code-execution-vulnerability)
- [CNA](https://www.vulncheck.com/advisories/fluent-forms-pro-embedded-malicious-code-via-tampered-plugin-build)

## Exploitation Prediction (EPSS)

- **EPSS Score:** 0.46%
- **EPSS Percentile:** 38.8

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_Exported from OnDuty AI Vulnerability Intelligence on 2026-09-10._