---
title: "CVE-2026-87741: ConvertPlus WordPress Plugin - Insecure Deserialization"
description: "ConvertPlus WordPress plugin <= 3.6.3 contains a deserialization of untrusted data vulnerability caused by improper nonce and capability checks in cp_display_preview_modal AJAX action, letting authenticated attackers with Subscriber-level access inject PHP objects, exploit requires presence of a POP chain in other plugins or themes."
url: https://panop.io/threat-heartbeat/CVE-2026-87741/
---

# CVE-2026-87741 ConvertPlus WordPress Plugin - Insecure Deserialization

ConvertPlus WordPress plugin <= 3.6.3 contains a deserialization of untrusted data vulnerability caused by improper nonce and capability checks in cp\_display\_preview\_modal AJAX action, letting authenticated attackers with Subscriber-level access inject PHP objects, exploit requires presence of a POP chain in other plugins or themes.

CVSS base score 8.8 /10

High

CISA KEV

Not listed

Public exploit

None known

Authentication

Required

EPSS

0.40% chance of exploitation in 30 days

[View the NVD record ↗](https://nvd.nist.gov/vuln/detail/CVE-2026-87741)

## Details

Type

Insecure Deserialization

Impact

Remote Code Execution, Information Disclosure, Data Tampering

CVSS vector

CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

Published

28 September 2026

Updated

15 October 2026

Weakness

[CWE-78](https://cwe.mitre.org/data/definitions/78.html)

## Vendor fix

Update to the latest version beyond 3.6.3 or apply vendor patches addressing nonce and capability checks.

Patching closes this CVE. It does not tell you which of your systems run the affected version, or what else is exposed alongside them.

## References

- [https://nvd.nist.gov/vuln/detail/CVE-2026-87741](https://nvd.nist.gov/vuln/detail/CVE-2026-87741)
- [https://convertpro.net](https://convertpro.net/)
- [https://www.wordfence.com/threat-intel/vulnerabilities/id/286b4dde-974d-4bb5-8a7e-57c849beaab1?source=cve](https://www.wordfence.com/threat-intel/vulnerabilities/id/286b4dde-974d-4bb5-8a7e-57c849beaab1?source=cve)

[← All CVEs](https://panop.io/threat-heartbeat/)

## What this record can't tell you

- Whether you run the affected software, and where
- Whether an attacker can actually reach and exploit it
- The misconfigurations that never get a CVE number
- What it would cost the business, ranked into what to fix first

Panop answers these inside your environment, for this CVE and every other finding.

[Book a demo](https://panop.io/demo)