PatchSiren

PatchSiren cyber security CVE debrief

CVE-2026-39443 PressLayouts CVE debrief

CVE-2026-39443 is a high-severity vulnerability in EmallShop versions <= 2.4.21, allowing unauthenticated PHP object injection. This vulnerability has a CVSS score of 8.1 and is considered HIGH severity. The vulnerability was published on June 17, 2026, and last modified on the same day. The vendor and product information is not confirmed, but the vulnerability is believed to be related to the EmallShop theme. Users of EmallShop versions <= 2.4.21 should take immediate action to mitigate this vulnerability.

Vendor
PressLayouts
Product
EmallShop
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 EmallShop versions <= 2.4.21 should be aware of this vulnerability and take necessary actions to protect their systems. This vulnerability can be exploited by unauthenticated attackers, making it a high-risk issue.

Technical summary

CVE-2026-39443 is an unauthenticated PHP object injection vulnerability in EmallShop versions <= 2.4.21. The vulnerability has a CVSS vector of CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H, indicating a high severity. The CWE-502 weakness is associated with this vulnerability.

Defensive priority

High

Recommended defensive actions

  • Update EmallShop to a version greater than 2.4.21
  • Implement a web application firewall (WAF) to detect and prevent PHP object injection attacks
  • Monitor system logs for suspicious activity
  • Restrict access to sensitive areas of the system
  • Use secure coding practices to prevent similar vulnerabilities
  • Perform regular security audits and vulnerability assessments
  • Consider using a PHP object injection protection tool or plugin

Evidence notes

The information provided is based on data from the NVD and Patchstack. The CVE record and NVD detail pages provide additional information about this vulnerability.

Official resources

public