Mang Board WP <= 2.3.7 - Authenticated (Subscriber+) Privilege Escalation to Forged Authentication Cookie
Key facts
- Attack vector
- Network
- Privileges required
- Low
- User interaction
- None
- Attack complexity
- Low
- Impact type
- Privilege escalation
- Confidentiality · integrity · availability
- High · High · High
- Fix status
- No fix listed
Attack profile from CVSS 3.1 · CNA. Fix status from CNA. Impact type from CWE-269.
Summary
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.
Why it matters now
SSVC decision points
CISA ADP · SSVC 2.0.3
- Exploitation
- None
- Automatable
- No
- Technical impact
- Total
The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.
Affected products
| Vendor | Product | Affected versions | Fixed in | Status | Source |
|---|---|---|---|---|---|
| kitae-park | Mang Board WP | up to 2.3.7 | — | No fix listed | CNA |
- Mang Board WP Vendorkitae-park Affected up to 2.3.7 Fixed in — No fix listed CNA
Remediation
No fixed version listed by the sources yet.
Timeline
- 2026-10-02 Threatist record created from CVE-2026-75977
- 2026-10-03 Alias added: GHSA-fwqj-5r7m-j49j
References
Other 12
- https://www.wordfence.com/threat-intel/vulnerabilities/id/ae75196d-2128-4da8-a90b-a62454dcdbe9?source=cve
- https://plugins.trac.wordpress.org/browser/mangboard/tags/2.3.6/models/admin/users.php#L125
- https://plugins.trac.wordpress.org/browser/mangboard/tags/2.3.6/includes/functions/func.board.php#L32
- https://plugins.trac.wordpress.org/browser/mangboard/tags/2.3.6/includes/functions/func.board.php#L1581
- https://plugins.trac.wordpress.org/browser/mangboard/tags/2.3.6/includes/functions/func.user.php#L447
- https://plugins.trac.wordpress.org/browser/mangboard/tags/2.3.6/api/mb-template.php#L36
- https://plugins.trac.wordpress.org/browser/mangboard/tags/2.3.5/models/admin/users.php#L125
- https://plugins.trac.wordpress.org/browser/mangboard/tags/2.3.5/includes/functions/func.board.php#L32
- https://plugins.trac.wordpress.org/browser/mangboard/tags/2.3.5/includes/functions/func.board.php#L1581
- https://plugins.trac.wordpress.org/browser/mangboard/tags/2.3.5/includes/functions/func.user.php#L447
- https://plugins.trac.wordpress.org/browser/mangboard/tags/2.3.5/api/mb-template.php#L36
- https://plugins.trac.wordpress.org/changeset/3664567/
More kitae-park vulnerabilities
- TI-2026-75167 Mang Board Unauthenticated Arbitrary File Upload via image_path Parameter CVSS 3.1CRITICAL 9.8
- TI-2026-74749 SQL injection in Mang Board WP WordPress plugin CVSS 3.1CRITICAL 9.3
- TI-2026-78799 Unrestricted file upload in WordPress Mang Board WP plugin CVSS 3.1CRITICAL 9.9
- TI-2026-73824 Local file inclusion in Mang Board WordPress plugin CVSS 3.1HIGH 8.1
- TI-2026-58271 WordPress Mang Board WP plugin <= 2.3.8 - Cross Site Request Forgery (CSRF) vulnerability CVSS 3.1HIGH 8.8
- TI-2026-73851 Stored cross-site scripting in Mang Board WordPress plugin CVSS 3.1HIGH 7.2
Sources
- CVE-2026-75977 · CVE Program
- CVE-2026-75977 · NVD
- FIRST EPSS
- GHSA-fwqj-5r7m-j49j · GitHub Advisory Database · CC BY 4.0
This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences