Gum Addon pop_tag input permits Contributor-level stored script

A Contributor or higher role stores malicious pop_tag input that reaches page output without adequate sanitization or escaping. Script executes when a visitor views the affected content. The export does not identify the submission route, widget or rendering function. Authoritative affected range: <= 1.3.15.

CVE / CNA score 6.4 CVSS 3.1 · security@wordfence.com

NVD score Pending NVD has not published its own CVSS assessment.

Component: Gum Addon for Elementor
Plugin slug: gum-elementor-addon
Affected: <= 1.3.15
Safe version: See mitigation notes
Published: Sep 19, 2026
Weakness: CWE-79 — Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')

This CVE was published Sep 19, 2026 and is one of 7 known issues for this plugin.

What to do

Update, patch or deactivate.

This archive could not verify a fixed version from the official author release notes reviewed on 2026-10-13. Disable the affected feature or component where practical until remediation for the deployed configuration is established. . Treat pop_tag as a constrained value rather than arbitrary markup, validate its permitted form and escape final output. Restrict affected editing and remove malicious stored content pending a confirmed fix. Official author release notes: https://wordpress.org/plugins/gum-elementor-addon/#developers.

No confirmed safe version is listed. Consider a vendor-supported patch or temporarily restricting the affected functionality while you assess the risk.

Deactivate only when warranted by your risk profile, or when advised by your hosting provider in the limited circumstances where the vulnerability cannot otherwise be mitigated. If you’re unsure which action is appropriate, contact Fused or your hosting provider for guidance.

Source record

Technical 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.

CVE / CNA vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:L/I:L/A:N

References

Primary and upstream sources

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