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VulnerabilityPublished Updated

CVE-2024-13784: Contact Form, Survey, Quiz & Popup Form Builder (WordPress plugin) · Deserialization of Untrusted Data

Affects Contact Form, Survey, Quiz & Popup Form Builder (WordPress plugin)Source CVE Database V5

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Not known to be exploited · CVSS 9.8 Critical.

Data as of 12 Nov 2026, 23:23 UTC

CVSS 3.1 base score
9.8Critical
How severe the flaw is on the 0–10 CVSS scale.
EPSS
0.7% chance of exploitation in 30 days – higher than 55% of CVEsExploit Prediction Scoring System: the likelihood attackers will use this flaw soon.
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Exploitation evidence

  1. Disclosed: evidence found.

    CVE published 16 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 13 Nov 2026.

What to do

Affected software

ProductAffectedFixed in
reputeinfosystemsContact Form, Survey, Quiz & Popup Form Builder – ARFormsAffected
  • <=1.8.5
Fixed in–

AI-suggested

Since exploitation requires a POP chain in other plugins or themes, site administrators should review and update all installed plugins and themes to versions without known POP chains. Monitor vendor advisories for ARForms for any forthcoming patches.

Description

The Contact Form, Survey, Quiz & Popup Form Builder – ARForms plugin for WordPress is vulnerable to PHP Object Injection in all versions up to, and including, 1.8.5 via deserialization of untrusted input from form submissions. This makes it possible for unauthenticated attackers to inject a PHP Object. No known POP chain is present in the vulnerable software, which means this vulnerability has no impact unless another plugin or theme containing a POP chain is installed on the site. If a POP chain is present via an additional plugin or theme installed on the target system, it may allow the attacker to perform actions like delete arbitrary files, retrieve sensitive data, or execute code depending on the POP chain present.

References

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