CVE-2019-25744

MEDIUM 5.4

WordPress Popup Builder 3.49 Persistent Cross-Site Scripting

CVSS Score

5.4

EPSS Score

0.0%

EPSS Percentile

9th

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.

CWE	CWE-79
Vendor	popup-builder
Product	popup builder
Published	Jun 4, 2026
Last Updated	Jun 10, 2026

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CVSS v3 Breakdown

CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N

Attack Vector

Network

Attack Complexity

Low

Privileges Required

Low

User Interaction

Required

Scope

Changed

Confidentiality

Low

Integrity

Low

Availability

None

Affected Versions

Popup-Builder / Popup Builder

3.49

References

NVD ↗ CVE.org ↗ EPSS Data ↗

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

Credits

Unk9vvN