PT-2023-18285 · WordPress · Cmp – Coming Soon & Maintenance Plugin

Marco Wotschka · Published 2023-06-09 · Updated 2023-06-16 · CVE-2023-2159

Positive Technologies (AI Summary)

CVSS v3.1

5.3

Medium

Base vector

AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N

Name of the Vulnerable Software and Affected Versions CMP – Coming Soon & Maintenance plugin for WordPress versions up to, and including, 4.1.7

Description The issue allows users to bypass the maintenance mode feature of the plugin. This can be achieved by including a correct cmp bypass GET parameter in the URL, which is equal to the md5-hashed home url in the default setting. This enables users to visit a site that is supposed to be in maintenance mode.

Recommendations For versions up to, and including, 4.1.7, update to a version later than 4.1.7 to resolve the issue. As a temporary workaround, consider restricting access to the cmp bypass parameter in the URL to minimize the risk of exploitation.

Exploit

Fix

Improper Access Control

Weakness Enumeration

CWE-284

Related Identifiers

CVE-2023-2159

Affected Products

Cmp – Coming Soon & Maintenance Plugin

References · 7

• 🔥 https://plugins.trac.wordpress.org/browser/cmp-coming-soon-maintenance/tags/4.1.6/niteo-cmp.php#L808 · Exploit
• https://osv.dev/vulnerability/CVE-2023-2159 · Vendor Advisory
• https://plugins.trac.wordpress.org/changeset/2900571/cmp-coming-soon-maintenance/tags/4.1.8/cmp-advanced.php?old=2873620&old_path=cmp-coming-soon-maintenance%2Ftags%2F4.1.7%2Fcmp-advanced.php · Patch
• https://nvd.nist.gov/vuln/detail/CVE-2023-2159 · Security Note
• https://t.me/cvenotify/52015 · Telegram Post
• https://t.me/cvenotify/52433 · Telegram Post
• https://wordfence.com/threat-intel/vulnerabilities/id/af955f69-b18c-446e-b05e-6a57a5f16dfa?source=cve · Note