CVE-2026-14472 extendthemes CVE debrief

Who should care

Defenders responsible for WordPress installations with the Kubio AI Page Builder plugin should assess exposure and prioritize verification and remediation. This includes reviewing the plugin version, restricting contributor-level access, and monitoring for suspicious activity. Additionally, defenders should verify and update the plugin to prevent exploitation of this vulnerability, and consider implementing compensating controls for exposed systems.

Why it matters

The Kubio AI Page Builder plugin for WordPress is vulnerable to Stored Cross-Site Scripting, allowing authenticated attackers to inject arbitrary web scripts. Defenders should prioritize verification and remediation to prevent exploitation.

• Defenders must verify and update the Kubio AI Page Builder plugin to prevent exploitation of this vulnerability.
• Authenticated attackers with contributor-level access and above can inject arbitrary web scripts in pages.
• Injected scripts will execute whenever a user accesses an injected page.

Technical summary

The Kubio AI Page Builder plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the kubio/copyright Block Content in all versions up to, and including, 2.8.4. This is due to insufficient input sanitization and output escaping, allowing 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 Kubio AI Page Builder plugin to prevent exploitation of this vulnerability.

Recommended defensive actions

• Verify the Kubio AI Page Builder plugin version and update to a patched version if necessary
• Restrict contributor-level access and above to prevent exploitation
• Monitor for suspicious activity and injected scripts
• 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 vulnerability was reported by [email protected] and is documented in the CVE Program record and the NVD vulnerability detail page. The Kubio AI Page Builder plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the kubio/copyright Block Content in all versions up to, and including, 2.8.4. This is due to insufficient input sanitization and output escaping, allowing authenticated attackers with contributor-level access and above to inject arbitrary web scripts in pages that will execute whenever a user accesses

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.