CVE-2026-110901 WPMU DEV CVE debrief

Who should care

Defenders responsible for WordPress installations using the SmartCrawl plugin should be aware of this vulnerability. Given the nature of the vulnerability, which allows for authorization bypass, it is crucial for those in charge of maintaining WordPress sites to assess their exposure and take appropriate action.

Why it matters

CVE-2026-110901 is a MEDIUM severity vulnerability in the WordPress SmartCrawl plugin that allows for authorization bypass through user-controlled keys. Defenders should verify plugin versions, review access controls, and monitor for suspicious activity.

• Defenders need to verify the version of the SmartCrawl plugin to ensure it's not vulnerable.
• Reviewing and tightening access controls and user permissions within WordPress installations is necessary to mitigate potential authorization bypass.
• Monitoring for suspicious activity related to the SmartCrawl plugin is advised.

Technical summary

The WordPress SmartCrawl plugin, versions up to and including 3.16.4, is vulnerable to an Insecure Direct Object References (IDOR) vulnerability. This vulnerability, identified as CVE-2026-110901, allows for authorization bypass through user-controlled keys. The vulnerability has a CVSS score of 5.4 and a severity rating of MEDIUM.

Defensive priority

Defenders should prioritize verifying the version of the SmartCrawl plugin in use and ensuring it is updated to a version beyond 3.16.4 if possible. Given the nature of the vulnerability, which allows for authorization bypass, defenders should also review access controls and user permissions within their WordPress installations.

Recommended defensive actions

• Verify the version of the SmartCrawl plugin in use and update to a version beyond 3.16.4 if possible.
• Review access controls and user permissions within WordPress installations to mitigate potential authorization bypass.
• Monitor for any suspicious activity related to the SmartCrawl plugin.

Evidence notes

The evidence for this vulnerability comes from the CVE Program record and the source item detailing the vulnerability in the WordPress SmartCrawl plugin. The CVE Program record provides official CVE metadata, while the source item offers specific details about the vulnerability, including its impact and affected versions.

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.