This security advisory describes one medium risk vulnerability.
1) Permissions, Privileges, and Access Controls
Severity: Medium
CVSSv3: 5.9 [CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:N/E:P/RL:O/RC:C] [PCI]
CVE-ID: N/A
CWE-ID: CWE-264 - Permissions, Privileges, and Access Controls
Description
The vulnerability allows a remote attacker to escalate privileges on the system.
The vulnerability exists due to the "companion_disable_popup" function only checks the nonce and will pass two user input, $_POST['value'] and $_POST['option'], to the "update_option" function. A remote authenticated attacker can copy the nonce, use it to send an AJAX request and modify WordPress core options in the "wp_options" table.
Mitigation
Install updates from vendor's website.
Vulnerable software versions
Materialis: 0.9.29, 1.0.5, 1.0.6, 1.0.7, 1.0.8, 1.0.9, 1.0.10, 1.0.13, 1.0.96, 1.0.98, 1.0.99, 1.0.100, 1.0.102, 1.0.103, 1.0.104, 1.0.105, 1.0.163, 1.0.164, 1.0.167, 1.0.168, 1.0.171, 1.0.172
Mesmerize: 0.1, 0.9.1, 0.9.2, 0.9.4, 0.9.5, 0.9.6, 0.9.7, 0.9.8, 0.9.9, 0.9.10, 0.9.11, 1.0.65, 1.0.66, 1.0.72, 1.0.73, 1.0.86, 1.0.90, 1.1.0, 1.1.1, 1.1.2, 1.1.3, 1.1.4, 1.2, 1.2.1, 1.2.2, 1.5.42, 1.5.45, 1.5.50, 1.5.52, 1.6.59, 1.6.61, 1.6.62, 1.6.72, 1.6.77, 1.6.81, 1.6.82, 1.6.85, 1.6.88, 1.6.89
CPE
External links
https://blog.nintechnet.com/wordpress-mesmerize-and-materialis-themes-fixed-an-authenticated-options-change-vulnerability/
Q & A
Can this vulnerability be exploited remotely?
Yes. This vulnerability can be exploited by a remote authenticated user via the Internet.
Is there known malware, which exploits this vulnerability?
No. We are not aware of malware exploiting this vulnerability. However, proof of concept for this vulnerability is available.
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