CVE-2019-25744CWE-79

WordPress Popup Builder 3.49 Persistent Cross-Site Scripting

Medium · published June 4, 2026

CVSS v4.0
5.1
EPSS
0%
Percentile
6.2
In the wild
Unconfirmed
What it is

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.

The record
Technical detail
CVSS v4.0
5.1 · MEDIUM
Vector
CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:P/VC:N/VI:N/VA:N/SC:L/SI:L/SA:N
EPSS
0.00171 · 6.2th percentile
Weakness
CWE-79 · Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')
Published
2026-06-04T13:22Z
EPSS history
Timeline
  • 04 JUN 13:22Z
    WordPress Popup Builder 3.49 Persistent Cross-Site Scripting
    cvelistv5