What’s Vulnerable › Vulnerabilities

CVE-2024-2544: Popup Builder <= 4.3.0 - Missing Authorization in Multiple AJAX Actions

• Severity: medium (CVSS 6.4 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.3% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2024-06-15 · updated 2026-06-17
• Weakness: CWE-862

Description

The Popup Builder plugin for WordPress is vulnerable to unauthorized modification of data and loss of data due to a missing capability check on all AJAX actions. This makes it possible for authenticated attackers, with subscriber-level access and above, to perform multiple unauthorized actions, such as deleting subscribers, and importing subscribers to conduct stored cross-site scripting attacks.

Affected products

• Popup Builder: before 4.3.2 — fixed in 4.3.2

How to fix

Upgrade to a fixed version: Popup Builder 4.3.2. Check the vendor advisory for mitigations.

References

• https://plugins.trac.wordpress.org/changeset?sfp_email=&sfph_mail=&reponame=&new=3096000%40popup-builder%2Ftrunk&old=3085485%40popup-builder%2Ftrunk&sfp_email=&sfph_mail=
• https://www.wordfence.com/threat-intel/vulnerabilities/id/04802c63-4a5d-4948-9ef1-cf89c4cc757e?source=cve
• https://plugins.trac.wordpress.org/changeset?sfp_email=&sfph_mail=&reponame=&new=3096000%40popup-builder%2Ftrunk&old=3085485%40popup-builder%2Ftrunk&sfp_email=&sfph_mail=
• https://www.wordfence.com/threat-intel/vulnerabilities/id/04802c63-4a5d-4948-9ef1-cf89c4cc757e?source=cve

Get alerted when CVE-2024-2544 or the next vulnerability affects your stack