What’s Vulnerable › Vulnerabilities

CVE-2026-8354: Gum Addon for Elementor <= 1.3.15 - Authenticated (Contributor+) Stored Cross-Site Scripting via 'pop_tag' Widget Setting

• 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: 2026-09-19 · updated 2026-09-21
• Weakness: CWE-79

Description

The Gum Addon for Elementor plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the 'pop_tag' parameter in all versions up to, and including, 1.3.15 due to insufficient input sanitization and output escaping. 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

• celomitan Gum Addon for Elementor: through 1.3.15

References

• https://plugins.trac.wordpress.org/browser/gum-elementor-addon/tags/1.3.15/widgets/popover_btn.php#L726
• https://plugins.trac.wordpress.org/browser/gum-elementor-addon/tags/1.3.15/widgets/popover_btn.php#L767
• https://plugins.trac.wordpress.org/browser/gum-elementor-addon/trunk/widgets/popover_btn.php#L726
• https://plugins.trac.wordpress.org/browser/gum-elementor-addon/trunk/widgets/popover_btn.php#L767
• https://plugins.trac.wordpress.org/changeset?reponame=&old=3556711%40gum-elementor-addon&new=3556711%40gum-elementor-addon
• https://www.wordfence.com/threat-intel/vulnerabilities/id/143c3a66-ac67-48e1-800f-8479fd963da3?source=cve

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