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.

No CVSS v4.0

Attack Vector Network

Attack Complexity Low

Privileges Required Low

Scope Unchanged

Confidentiality Impact High

Integrity Impact High

Availability Impact High

User Interaction None

No CVSS v3.0

No CVSS v2

This CVE is not in the KEV list.

The EPSS score is 0.00623.

Key SSVC decision points have not yet been added.

Default status is the baseline for the product, each version can override it (e.g. patched versions marked unaffected).

Vendor Product Default status Versions
kitae-park Mang Board WP unaffected
Version Status Constraints
0 affected ≤ 2.3.7

No data.

No data.

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Advisories

No advisories yet.

Fixes

Solution

No solution given by the vendor.

Workaround

No workaround given by the vendor.

References
Link Providers
https://plugins.trac.wordpress.org/browser/mangboard/tags/2.3.5/api/mb-template.php#L36 cve-icon
https://plugins.trac.wordpress.org/browser/mangboard/tags/2.3.5/includes/functions/func.board.php#L1581 cve-icon
https://plugins.trac.wordpress.org/browser/mangboard/tags/2.3.5/includes/functions/func.board.php#L32 cve-icon
https://plugins.trac.wordpress.org/browser/mangboard/tags/2.3.5/includes/functions/func.user.php#L447 cve-icon
https://plugins.trac.wordpress.org/browser/mangboard/tags/2.3.5/models/admin/users.php#L125 cve-icon
https://plugins.trac.wordpress.org/browser/mangboard/tags/2.3.6/api/mb-template.php#L36 cve-icon
https://plugins.trac.wordpress.org/browser/mangboard/tags/2.3.6/includes/functions/func.board.php#L1581 cve-icon
https://plugins.trac.wordpress.org/browser/mangboard/tags/2.3.6/includes/functions/func.board.php#L32 cve-icon
https://plugins.trac.wordpress.org/browser/mangboard/tags/2.3.6/includes/functions/func.user.php#L447 cve-icon
https://plugins.trac.wordpress.org/browser/mangboard/tags/2.3.6/models/admin/users.php#L125 cve-icon
https://plugins.trac.wordpress.org/changeset/3664567/ cve-icon
https://www.wordfence.com/threat-intel/vulnerabilities/id/ae75196d-2128-4da8-a90b-a62454dcdbe9?source=cve cve-icon
History

Wed, 26 Aug 2026 09:45:00 +0000

Type Values Removed Values Added
First Time appeared Kitae-park
Kitae-park mang Board Wp
Wordpress
Wordpress wordpress
Vendors & Products Kitae-park
Kitae-park mang Board Wp
Wordpress
Wordpress wordpress

Wed, 26 Aug 2026 08:00:00 +0000

Type Values Removed Values Added
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.
Title Mang Board WP <= 2.3.7 - Authenticated (Subscriber+) Privilege Escalation to Forged Authentication Cookie
Weaknesses CWE-269
References
Metrics cvssV3_1

{'score': 8.8, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H'}

Projects

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cve-icon MITRE

Status: PUBLISHED

Assigner: Wordfence

Published:

Updated: 2026-08-26T07:42:01.311Z

Reserved: 2026-08-18T18:13:29.343Z

Link: CVE-2026-75977

cve-icon Vulnrichment

No data.

cve-icon NVD

No data.

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

Updated: 2026-08-26T09:30:04Z

Weaknesses