CVE-2026-111902 thorsten CVE debrief

Who should care

Defenders responsible for phpMyFAQ installations should assess exposure and prioritize verification and remediation efforts. This includes reviewing the official CVE record and NVD detail page for affected scope, severity, and vendor guidance, as well as verifying the vulnerability in their inventory and assessing exposure.

Why it matters

CVE-2026-111902 is a medium-severity authorization bypass vulnerability in phpMyFAQ that allows unauthenticated users to read comments and attachment listings of unpublished or ACL-restricted FAQs. Defenders should prioritize verifying the vulnerability in their inventory and assessing exposure.

• Read comments and attachment listings of unpublished or ACL-restricted FAQs
• Potential data exposure through API endpoints
• Requires verification of vulnerability in inventory and exposure

Technical summary

The vulnerability is caused by the isFaqAccessibleForUser() function treating a missing FAQ translation as visible to unauthenticated users. Attackers can exploit this vulnerability by sending a mismatched Accept-Language header to the comments and attachments API endpoints, potentially leading to unauthorized access to comments and attachment listings of unpublished or ACL-restricted FAQs. Defenders should prioritize verifying the vulnerability in their inventory and assessing exposure, as the vulnerability has a medium CVSS score of 6.9.

Defensive priority

Defenders should prioritize verifying the vulnerability in their inventory and assessing exposure, as the vulnerability has a medium CVSS score of 6.9.

Recommended defensive actions

• Verify the vulnerability in your inventory and assess exposure
• Restrict access to the comments and attachments API endpoints
• Monitor for suspicious activity on the API endpoints
• 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 Vulncheck and is described in the CVE Program record and the NVD vulnerability detail page. However, details about the vulnerability's impact and remediation are limited. To verify the vulnerability, defenders should review the official CVE record and NVD detail page for affected scope, severity, and vendor guidance. They should also check for any available patches or updates and assess their inventory for potential exposure.

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.