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Vulnerability details

CVE-2024-13784

reputeinfosystems Contact Form

Contact Form, Survey, Quiz & Popup Form Builder – ARForms <= 1.8.5 - Unauthenticated PHP Object Injection

CVSS 3.1
9.8Critical

Official 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.

CVSS scores

ScoreVersionSourceVector
9.8Critical 3.1 CVEProject cvelistV5 (CNA) (Wordfence) CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Affected products

VendorProductVersionsSource
reputeinfosystems Contact Form, Survey, Quiz & Popup Form Builder – ARForms v ≤ 1.8.5 CVEProject cvelistV5 (CNA)

References and advisories

2
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Details

Published
2026-08-16
Last updated
2026-08-17
State
Published
Assigner (CNA)
Wordfence

Exploit prediction (EPSS)

0.75%
Probability of exploitation in 30 days
55.3%
Percentile (among all CVEs)

SSVC assessment (CISA)

Automatable
Yes
Exploitation
None
Technical impact
Total

Weaknesses (CWE)

  • CWE-502
    Deserialization of Untrusted Data