What’s Vulnerable › Vulnerabilities

CVE-2019-25744: WordPress Popup Builder 3.49 Persistent Cross-Site Scripting

• Severity: medium (CVSS 5.4 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.2% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2026-06-04 · updated 2026-07-22
• Weakness: CWE-79

Description

WordPress Popup Builder 3.49 contains a persistent cross-site scripting vulnerability that allows authenticated attackers to inject malicious scripts by breaking out of option tags in the post_title parameter. Attackers can submit crafted POST requests to the post.php endpoint with script payloads in the post_title field that execute when pages or posts display popup selections.

Affected products

• Popup-Builder Popup Builder: 3.49

References

• https://popup-builder.com/
• https://wordpress.org/plugins/popup-builder/
• https://www.exploit-db.com/exploits/47518
• https://www.vulncheck.com/advisories/wordpress-popup-builder-persistent-cross-site-scripting

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