CVE-2026-8354 celomitan CVE debrief

Who should care

Defenders responsible for WordPress installations with the Gum Addon for Elementor plugin should assess exposure and prioritize verification and potential updates. This includes operators, platform administrators, vulnerability management teams, and security teams who need to review and mitigate the vulnerability.

Why it matters

The Gum Addon for Elementor plugin for WordPress is vulnerable to Stored Cross-Site Scripting, allowing authenticated attackers to inject arbitrary web scripts. Defenders should prioritize verification, updates, and monitoring to prevent potential exploitation.

• Authenticated attackers with contributor-level access and above can inject arbitrary web scripts
• Injected scripts can execute on pages accessed by users
• Defenders should verify and update the plugin to a patched version, if available
• Monitoring for potential exploitation attempts is necessary

Technical summary

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.

Defensive priority

Defenders should prioritize verifying and updating the plugin to a patched version, if available, and monitor for potential exploitation attempts.

Recommended defensive actions

• Verify and update the Gum Addon for Elementor plugin to a patched version, if available
• Monitor for potential exploitation attempts
• Implement additional security measures to prevent cross-site scripting attacks
• Review compensating controls for exposed systems while remediation is scheduled and verified
• Check relevant monitoring, detection, and logs for exposed assets that need extra review
• Track exceptions, retest remediated assets, and close the item only after evidence is documented
• Confirm whether affected product deployments exist in managed environments and assign an owner for follow-up

Evidence notes

The CVE record and NVD entry provide details on the vulnerability, including its description, CVSS score, and affected versions. The vulnerability was reported by [email protected] and affects WordPress installations with the Gum Addon for Elementor plugin. Defenders should verify the plugin version and update to a patched version, if available. The CVE record was published on 2026-09-19T09:16:34.583Z and has not been modified since then. The NVD entry provides additional information on the vulnerability, including its CVSS score

Sources and references

Methodology and review provenance

AI-assisted synthesis based on stored public vulnerability evidence. System validation, approval state, and publication status do not by themselves establish human review of this revision. PatchSiren helps prioritize defensive review and does not prove exposure or remediation on any system.