CVE-2024-11339: Smart PopUp Blaster <= 1.4.3 - Authenticated (Contributor+) Stored Cross-Site Scripting

Severity: medium (CVSS 6.4 v3.1)
Exploited in the wild: not listed in CISA KEV
EPSS: 0.3% probability of exploitation in the next 30 days
Public exploit or detection template: none known
Published: 2024-12-06 · updated 2026-06-17
Weakness: CWE-79

Description

The Smart PopUp Blaster plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the plugin's 'spb-button' shortcode in all versions up to, and including, 1.4.3 due to insufficient input sanitization and output escaping on user supplied attributes. This makes it possible for authenticated attackers, with contributor-level access and above, to inject arbitrary web scripts in pages that will execute whenever a user accesses an injected page.

Affected products

devnethr Smart PopUp Blaster: through 1.4.3

References

https://plugins.trac.wordpress.org/browser/smart-popup-blaster/trunk/admin/shortcodes.php
https://www.wordfence.com/threat-intel/vulnerabilities/id/e10f391a-6663-4222-8266-ab911c588b76?source=cve

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