CVE-2026-97342 jetmonsters CVE debrief

Who should care

Defenders responsible for WordPress installations using the JetFormBuilder plugin should assess exposure and potential impact due to the high CVSS score and the plugin's popularity.

Why it matters

The JetFormBuilder plugin for WordPress has a Stored Cross-Site Scripting vulnerability that allows unauthenticated attackers to inject web scripts. Defenders should prioritize verifying exposure and assessing potential impact due to the high CVSS score and plugin popularity.

• Unauthenticated attackers can inject web scripts that execute when a user accesses an injected page.
• The vulnerability has a high CVSS score of 7.2, indicating a significant security risk.
• Defenders need to verify exposure and assess potential impact due to the plugin's popularity.

Technical summary

The JetFormBuilder plugin for WordPress is vulnerable to Stored Cross-Site Scripting via 'choice' Post Meta. The injected payload is submitted via the unauthenticated wp_ajax_nopriv_jet_form_builder_submit endpoint and later rendered unescaped by the Select Field block template. This vulnerability allows unauthenticated attackers to inject web scripts that execute when a user accesses an injected page. The vulnerability has a high CVSS score of 7.2, indicating a significant security risk. Defenders need to verify exposure and assess potential impact due to the plugin's popularity and the high CVSS score.

Defensive priority

Defenders should prioritize verifying exposure and assessing potential impact due to the high CVSS score of 7.2 and the plugin's popularity.

Recommended defensive actions

• Verify the JetFormBuilder plugin version and ensure it is updated to a fixed version.
• Assess exposure by checking if the plugin is in use and if the vulnerable functionality is accessible.
• Implement additional security measures such as input validation and output encoding.
• Monitor for suspicious activity and implement incident response plans.
• 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.

Evidence notes

The vulnerability is caused by insufficient input sanitization and output escaping in the JetFormBuilder plugin. The injected payload is submitted via the unauthenticated wp_ajax_nopriv_jet_form_builder_submit endpoint.

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.