CVE-2026-73532: WPManageNinja Fluent Forms Pro · Embedded Malicious Code
Affects WPManageNinja Fluent Forms ProSource CVE Database V5
Not known to be exploited · CVSS 9.3 Critical.
Data as of 11 Nov 2026, 23:24 UTC
- EPSS
- 0.6% chance of exploitation in 30 days – higher than 52% of CVEsExploit Prediction Scoring System: the likelihood attackers will use this flaw soon.
CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:NExploitation evidence
Disclosed: evidence found.
CVE published 13 Aug 2026
Detectable: no evidence on record.
No public nuclei template indexed
Weaponized: no evidence on record.
No public exploit code indexed in Metasploit or Exploit-DB
Exploited in the wildExploited: no evidence on record.
Not in CISA KEV and no source reports exploitation
Observed by OffSeq MirageSeen by Mirage: no evidence on record.
No attack traffic recorded by OffSeq Mirage sensors
A missing step is not evidence of safety. Sources: cve.org (opens in a new tab), the Metasploit, Exploit-DB and nuclei-templates index as of 11 Nov 2026.
What to do
Affected software
| Product | Affected | Fixed in |
|---|---|---|
| WPManageNinjaFluent Forms Pro | Affected
| Fixed in– |
AI-suggested
Due to the persistence mechanisms surviving plugin removal, affected installations should perform a thorough forensic analysis and clean-up, including removing rogue PHP files from mu-plugins and uploads directories, deleting unauthorized administrator accounts, and checking scheduled tasks. Monitor official WPManageNinja channels for an official fix or updated plugin build. Until a patch is available, consider disabling the affected plugin and restoring from a clean backup if possible.
Description
Fluent Forms Pro version 6.2.7 contains embedded malicious code introduced via a tampered plugin build distributed through a decommissioned update server. This malicious code adds a rogue PHP file that creates a backdoor REST API endpoint, installs a passwordless administrator account, drops persistent PHP files in critical directories, and registers scheduled tasks that persist even after plugin removal. The vulnerability has a critical CVSS score of 9.3 and allows unauthenticated remote attackers to gain high-impact control over affected systems.
References
- wpmanageninja.com/security-incident-on-31-july-2026/ (opens in a new tab)
- wordpress.org/plugins/fluentform/ (opens in a new tab)
- 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 (opens in a new tab)
- vulncheck.com/advisories/fluent-forms-pro-embedded-malicious-code-via-tampered-plugin-build (opens in a new tab)