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VulnerabilityPublished Updated

CVE-2026-73532: WPManageNinja Fluent Forms Pro · Embedded Malicious Code

Affects WPManageNinja Fluent Forms ProSource CVE Database V5

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Not known to be exploited · CVSS 9.3 Critical.

Data as of 11 Nov 2026, 23:24 UTC

CVSS 4.0 base score
9.3Critical
How severe the flaw is on the 0–10 CVSS scale.
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:N

Exploitation evidence

  1. Disclosed: evidence found.

    CVE published 13 Aug 2026

  2. Detectable: no evidence on record.

    No public nuclei template indexed

  3. Weaponized: no evidence on record.

    No public exploit code indexed in Metasploit or Exploit-DB

  4. Exploited in the wild: no evidence on record.

    Not in CISA KEV and no source reports exploitation

  5. Observed by OffSeq 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

ProductAffectedFixed in
WPManageNinjaFluent Forms ProAffected
  • =6.2.7
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

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