Medium 5.4Published Jun 4, 2026

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

Updated under an hour ago (Oct 26, 2026, 7:50 AM ET)

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No exploitation reported and no EPSS estimate yet.

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Exploited in the last 30 days

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.

CVSS: 5.4 MEDIUM (v3.1, CNA)CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N
Weakness (CWE): CWE-79
Known exploited: Not in CISA's KEV catalog
EPSS (exploitation in the next 30 days): Not loaded for this CVE
Assigned by: VulnCheck
NVD analysis: Deferred
Record last updated: Jul 14, 2026
First seen by InfoSec Signals: Oct 9, 2026

Affected products

Affected products

Popup-Builder Popup Builder popup_builder:popup_builder (from the name)	3.49	CNA record

References

https://www.exploit-db.com/exploits/47518exploit
https://popup-builder.com/product
https://wordpress.org/plugins/popup-builder/product
https://www.vulncheck.com/advisories/wordpress-popup-builder-persistent-cross-site-scriptingthird-party-advisory

The CVE record on cve.org NVD's entry

The CVE record is authoritative. Products marked “from the name” were identified from the CNA's free-text names, not a CPE, and are matched less certainly. This product uses the NVD API but is not endorsed or certified by the NVD.