CVE-2026-84752: RTMKit PHP Object Injection

CVE-2026-84752 · Severity: high · CVSS 8.8 · Published 2026-09-03

RTMKit is a WordPress plugin that provides theme components for the Elementor page builder. A PHP object injection vulnerability in versions up to 2.1.5 allows users with contributor-level permissions to execute arbitrary actions on the server, potentially leading to unauthorized data modification, code execution, or site compromise.

Technologies: RomeTheme RTMKit. Vendors: RomeTheme.

Quick answers

Is CVE-2026-84752 exploited in the wild?
No. Junglewise Threat Intelligence has no report of CVE-2026-84752 being exploited in the wild.
How severe is CVE-2026-84752?
High severity, with a CVSS score of 8.8, published 3 September 2026.
Which products and versions are affected?
RomeTheme RTMKit <=2.1.5.
Is there a fix for CVE-2026-84752?
A patch was published on 2026-09-02: Version 2.1.6 released with fix Junglewise finds every place you run it, drafts the upgrade and applies it once you approve.
How is CVE-2026-84752 attacked?
It is attacked over the network, in a web application.
Am I affected by CVE-2026-84752?
Check whether you run RomeTheme RTMKit at an affected version. Junglewise does that check for you around the clock: connect your code, cloud and domains, and it matches new vulnerabilities like this one against what you actually run and tells you when one reaches you.

Technical details

The vulnerability is a PHP Object Injection (CWE-502) in RTMKit plugin versions <= 2.1.5. It requires contributor-level privileges to exploit, meaning an attacker must have an active WordPress account with at least contributor permissions. The flaw allows manipulation of how the server processes serialized data objects, enabling remote code execution or other malicious server-side actions. The vulnerability was patched in version 2.1.6, which should be deployed immediately.

Affected products

  • Rometheme RTMKit <=2.1.5

Timeline

  • 2026-09-03: disclosed: CVE-2026-84752 published
  • 2026-09-02: patched: Version 2.1.6 released with fix

References

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