5.4Medium

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

Popup-Builder Popup Builder Published: 2026-06-04 16:22 (5 months ago)

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.

Weakness (CWE): CWE-79

Data: CVE.org, NVD, CISA KEV, FIRST EPSS, Ubuntu. Published as the sources state it, in English.

Affected products and versions

Vendor	Product	Versions
Popup-Builder	Popup Builder	3.49
sygnoos	popup builder	3.49

References and patches

ExploitDB-47518 exploit
Official Product Homepage product
Product Reference product
VulnCheck Advisory: WordPress Popup Builder 3.49 Persistent Cross-Site Scripting third-party-advisory

CVSS score

5.4Medium

Source: VulnCheck · CVSS 3.1

Attack vector: Network
Attack complexity: Low
Privileges required: Low
User interaction: Required
Scope: Changed
Confidentiality: Low
Integrity: Low
Availability: None

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

All scores (4)

cna	CVSS 4.0	5.1Medium
cna	CVSS 3.1	5.4Medium
disclosure@vulncheck.com	CVSS 4.0	5.1Medium
disclosure@vulncheck.com	CVSS 3.1	5.4Medium

EPSS (chance of exploitation in 30 days)

0.17%

higher than 7% of all CVEs

CISA assessment (SSVC)

Exploitation: poc
Automatable: no
Technical impact: partial

Timeline

ID reserved2026-06-04
Published2026-06-04 16:22
Reached IP-DB2026-10-24 23:51
Last updated2026-07-22 23:10

Assigned by (CNA): VulnCheck
NVD status: Deferred

View at source: CVE.org · NVD

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