CVE-2026-94294 App Builder CVE debrief

Who should care

Defenders responsible for WordPress installations with the App Builder plugin should assess exposure and prioritize verification and updates. WordPress administrators and security teams should verify and update the App Builder plugin, restrict access, and monitor for suspicious activity. Defenders should care about CVE-2026-94294 because it allows attackers to write arbitrary data and redirect users without authentication, potentially leading to security.

Why it matters

Defenders should care about CVE-2026-94294 because it allows attackers to write arbitrary data and redirect users without authentication, potentially leading to security issues. WordPress administrators and security teams should verify and update the App Builder plugin, restrict access, and monitor for suspicious activity.

• Potential unauthorized data writes
• Potential redirects to malicious URIs
• Verification of plugin version and access controls
• Monitoring for suspicious activity

Technical summary

The App Builder WordPress plugin before 5.7.1 does not require authentication or authorisation before writing attacker-supplied data to one of its options and, on a separate unauthenticated request, redirecting the visitor's browser to a URI built from that stored data. This vulnerability allows attackers to write arbitrary data and redirect users without authentication, potentially leading to security issues. The vulnerability is caused by a lack of authentication and authorisation in the plugin, which allows attackers to write arbitrary data and redirect users.

Defensive priority

Defenders should prioritize verifying and updating the App Builder WordPress plugin to version 5.7.1 or later, and monitor for potential unauthorized data writes and redirects.

Recommended defensive actions

• Verify and update the App Builder WordPress plugin to version 5.7.1 or later
• Monitor for potential unauthorized data writes and redirects
• Review and restrict access to the plugin's options and redirects
• Confirm whether affected product deployments exist in managed environments and assign an owner for follow-up
• Review the supplied official advisory or CVE record to validate affected scope, severity, and vendor guidance
• Plan vendor-supported updates or mitigations through normal change control where exposure is confirmed
• Check relevant monitoring, detection, and logs for exposed assets that need extra review

Evidence notes

The CVE record and NVD entry provide limited information about the vulnerability, with the primary source being the WPScan reference. The vulnerability allows attackers to write arbitrary data and redirect users without authentication, potentially leading to security issues. Defenders should verify and update the App Builder plugin, restrict access, and monitor for suspicious activity. The WPScan reference provides additional details about the vulnerability.

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.