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PatchSiren cyber security CVE debrief

CVE-2026-39442 PressLayouts CVE debrief

CVE-2026-39442 is a HIGH-severity vulnerability (CVSS score of 8.1) affecting PressMart theme versions <= 1.2.26. It allows unauthenticated PHP Object Injection. Published on 2026-06-17, publicly disclosed on the same day. Users of affected versions should apply patches immediately. This vulnerability could lead to significant impact if exploited, including potential code execution. Administrators should prioritize updating to a patched version. Monitor for any advisories or patches from the vendor. Consider implementing additional security measures to detect and prevent exploitation.

Vendor
PressLayouts
Product
PressMart
CVSS
HIGH 8.1
CISA KEV
Not listed in stored evidence
Original CVE published
2026-06-17
Original CVE updated
2026-06-17
Advisory published
2026-06-17
Advisory updated
2026-06-17

Who should care

Administrators and users of PressMart theme versions <= 1.2.26 should be aware of this vulnerability. Security teams monitoring for potential threats and those responsible for maintaining WordPress installations using this theme should prioritize patching.

Technical summary

CVE-2026-39442 is an unauthenticated PHP Object Injection vulnerability in PressMart theme versions <= 1.2.26. The vulnerability has a CVSS score of 8.1, indicating HIGH severity. It was published and publicly disclosed on 2026-06-17. The vulnerability is tracked under CWE-502. The CVSS vector is CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H, indicating Network attack vector, High attack complexity, No privileges required, No user interaction needed, Unchanged scope, and High impact on Confidentiality, Integrity, and Availability.

Defensive priority

HIGH

Recommended defensive actions

  • Apply patches or updates to PressMart theme versions <= 1.2.26 immediately.
  • Monitor for any advisories or patches from the vendor.
  • Implement additional security measures to detect and prevent exploitation.
  • Review and update incident response plans to address potential exploitation.
  • Ensure all WordPress installations using this theme are updated to a patched version.
  • Consider enhancing monitoring and logging to detect potential attacks.
  • Review and restrict network access to affected systems if possible.

Evidence notes

Information provided by Patchstack and NVD. The CVE was published and modified on 2026-06-17. The vulnerability status is Deferred. The CVE record and NVD detail pages provide additional context.

Official resources

public