CVE-2026-109998 Mang Board WordPress Plugin - Stored XSS

Mang Board WordPress plugin <= 2.4.3 contains a stored XSS caused by insufficient sanitization and escaping of the 'content' parameter in wp_ajax_nopriv_mb_template endpoint, letting unauthenticated attackers inject scripts executed by users, exploit requires public access to the endpoint without authentication.

CVSS base score 7.2 /10
High
CISA KEV
Not listed
Public exploit
None known
Authentication
Not required
View the NVD record ↗

Details

Type
Stored Xss
Impact
Stored Xss
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:L/I:L/A:N
Published
16 October 2026
Updated
16 October 2026
Weakness
CWE-79

Vendor fix

Update to a version later than 2.4.3 or apply vendor patches.

Patching closes this CVE. It does not tell you which of your systems run the affected version, or what else is exposed alongside them.

References

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