Tiki Wiki CMS Groupware versions 24.0 and below suffer from a PHP code injection vulnerability in structlib.php.
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Tiki Wiki CMS Groupware <= 24.0 (structlib.php) PHP Code Injection
Vulnerability
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[-] Software Link:
https://tiki.org
[-] Affected Versions:
Version 24.0 and prior versions.
[-] Vulnerability Description:
The vulnerability is located in the /lib/structures/structlib.php
script, specifically in the StructLib::structure_to_webhelp() method,
which is using an eval() call with user-controlled input. This can be
exploited by malicious users to inject and execute arbitrary PHP code.
Successful exploitation of this vulnerability requires the
“feature_create_webhelp” to be enabled and an account with permissions
to create a wiki page.
[-] Solution:
Upgrade to version 24.1 or later.
[-] Disclosure Timeline:
[08/03/2022] - Vendor notified
[23/08/2022] - Version 24.1 released
[09/01/2023] - Public disclosure
[-] CVE Reference:
The Common Vulnerabilities and Exposures project (cve.mitre.org)
has assigned the name CVE-2023-22853 to this vulnerability.
[-] Credits:
Vulnerability discovered by Egidio Romano.
[-] Original Advisory:
http://karmainsecurity.com/KIS-2023-02