CVE-2026-40760: Edge-Themes Behold PHP Object Injection

CVE-2026-40760 · Severity: high · CVSS 8.1 · Published 2026-06-17

The Behold theme for WordPress is vulnerable to a security flaw that allows unauthorized users to inject malicious code. This theme is used to customize the appearance and layout of WordPress websites. If exploited, an attacker could potentially take control of the website, steal sensitive data, or disrupt services, even without having a login account.

Vendors: Edge-Themes.

Quick answers

Is CVE-2026-40760 exploited in the wild?
No. Junglewise Threat Intelligence has no report of CVE-2026-40760 being exploited in the wild.
How severe is CVE-2026-40760?
High severity, with a CVSS score of 8.1, published 17 June 2026.
Which products and versions are affected?
Edge-Themes Behold <= 1.5.
Is there a fix for CVE-2026-40760?
No fixed version is recorded yet. Check the vendor's advisory in the references below. If you run it, Junglewise drafts a mitigation that fits your setup and applies it once you approve, with senior security engineers behind it.
How is CVE-2026-40760 attacked?
It is attacked over the network, in a web application.
Am I affected by CVE-2026-40760?
Check whether you run Edge-Themes Behold 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

A PHP Object Injection vulnerability exists in the Edge-Themes Behold theme for WordPress in versions up to and including 1.5. The flaw is rooted in the deserialization of untrusted data (CWE-502), allowing an unauthenticated remote attacker to inject PHP objects. If a suitable Property-Oriented Programming (POP) chain is present in the environment, this can lead to various high-impact attacks including remote code execution, SQL injection, or arbitrary file deletion. The vulnerability is mitigated in version 1.6.

Affected products

  • Edge-Themes Behold <= 1.5

Timeline

  • 2026-02-24: other: Vulnerability reported by Denver Jackson
  • 2026-04-20: disclosed: Initial disclosure by Patchstack
  • 2026-06-17: advisory: NVD publication date

References

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