CVE-2026-39442: PressLayouts PressMart PHP object injection

CVE-2026-39442 · Severity: high · CVSS 8.1 · Published 2026-06-17

PressMart is a WordPress theme used for building e-commerce and business websites. A security flaw in versions 1.2.26 and earlier allows an unauthenticated attacker to inject malicious code into the site. If successfully exploited, this could lead to full site takeover, data theft, or the complete disruption of business operations.

Vendors: PressLayouts.

Quick answers

Is CVE-2026-39442 exploited in the wild?
No. Junglewise Threat Intelligence has no report of CVE-2026-39442 being exploited in the wild.
How severe is CVE-2026-39442?
High severity, with a CVSS score of 8.1, published 17 June 2026.
Which products and versions are affected?
PressLayouts PressMart <= 1.2.26.
Is there a fix for CVE-2026-39442?
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-2026-39442 attacked?
It is attacked over the network, in a web application.
Am I affected by CVE-2026-39442?
Check whether you run PressLayouts PressMart 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 PressMart theme for WordPress is vulnerable to PHP Object Injection via the deserialization of untrusted data (CWE-502). This occurs because the application fails to properly validate user-supplied input before passing it to a PHP deserialization function. An unauthenticated remote attacker can exploit this by sending a specially crafted payload to the server. If a suitable Property-Oriented Programming (POP) chain is present within the environment, the attacker could achieve remote code execution, perform SQL injection, or access sensitive files. The vulnerability is patched in version 1.2.27.

Affected products

  • PressLayouts PressMart <= 1.2.26

Timeline

  • 2026-02-12: other: Reported by Phat RiO
  • 2026-04-22: disclosed: Initial disclosure by Patchstack
  • 2026-06-17: advisory: NVD publication date

References

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