CVE-2012-20003 Web Updates KMU CVE debrief

Who should care

WordPress site administrators and security teams responsible for maintaining and securing WordPress installations with the Custom Tables plugin should assess exposure, prioritize remediation, and verify security measures to prevent potential script injection and data theft. They should also review compensating controls for exposed systems while remediation is scheduled and verified, and check relevant monitoring, detection, and logs for exposed assets that

Why it matters

CVE-2012-20003 is a reflected cross-site scripting vulnerability in the Custom Tables WordPress Plugin before 3.4.6. Defenders should assess exposure, prioritize remediation, and verify security measures to prevent potential script injection and data theft.

• Potential script injection in victims' browsers
• Stealing of cookies and sensitive information
• Possible disruption of website functionality
• Need for verification of plugin version and vulnerability status

Technical summary

The Custom Tables WordPress Plugin before 3.4.6 contains a reflected cross-site scripting vulnerability in iframe.php. This vulnerability allows unauthenticated attackers to inject scripts through the unsanitized 'key' parameter. The vulnerability was first observed by the Shadowserver Foundation on 2023-10-20. To address this issue, defenders should assess exposure, prioritize remediation, and verify the effectiveness of their security measures. The CVE record and NVD entry provide details about the vulnerability, but its current exploitation status and impact are unclear.

Defensive priority

Medium priority for WordPress site administrators and security teams to update the Custom Tables plugin to version 3.4.6 or later.

Recommended defensive actions

• Update Custom Tables plugin to version 3.4.6 or later
• Monitor for suspicious activity related to the Custom Tables plugin
• Perform regular security audits and vulnerability assessments
• 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 first observed by the Shadowserver Foundation on 2023-10-20. The CVE record and NVD entry provide details about the vulnerability, but its current exploitation status and impact are unclear.

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.