CVE-2021-24432: advanced ajax product filters vulnerability

What is known

The Advanced AJAX Product Filters WordPress plugin does not sanitise the 'term_id' POST parameter before outputting it in the page, leading to reflected Cross-Site Scripting issue.

Business impact

Successful exploitation of CVE-2021-24432, a medium vulnerability (CVSS 6.1) affecting advanced ajax product filters, may affect the confidentiality, integrity or availability of the vulnerable environment. The exact impact depends on the installed version, exposed interfaces and deployment configuration.

Recommended administrator action

Confirm whether advanced ajax product filters is present and compare installed versions with the vendor advisory and NVD record. Apply the vendor patch or documented mitigation; until remediation is complete, reduce exposure of affected interfaces, review relevant logs and monitor for indicators of exploitation. DataHouse can support version verification, managed patching, network exposure reduction, log review and backup validation for dedicated, cloud and colocated environments.

Sources

• NVD
• Reference