CVE-2026-75977
Mang Board WP <= 2.3.7 - Authenticated (Subscriber+) Privilege Escalation to Forged Authentication Cookie
Description
The Mang Board WP plugin for WordPress is vulnerable to Missing Authorization via Authentication Cookie Forgery in all versions up to, and including, 2.3.7. This is due to flawed HMAC generation in the mbw_get_hash_key() function that uses the current user's identity instead of the cookie username parameter when a WordPress user is logged in, combined with insufficient validation in mbw_validate_auth_cookie(). This makes it possible for authenticated attackers, with subscriber-level access and above, to forge administrator authentication cookies and change administrator passwords to achieve complete site takeover.
INFO
Published Date :
Aug. 26, 2026, 7:42 a.m.
Last Modified :
Aug. 26, 2026, 7:42 a.m.
Remotely Exploit :
No
Source :
Wordfence
Affected Products
The following products are affected by CVE-2026-75977
vulnerability.
Even if cvefeed.io is aware of the exact versions of the
products
that
are
affected, the information is not represented in the table below.
No affected product recoded yet
Solution
- Update the Mang Board WP plugin.
- Verify plugin HMAC generation.
- Validate cookie authentication properly.
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CVE-2026-75977 vulnerability anywhere in the article.