CVE-2026-102772 CMB2 WordPress Plugin - Stored Cross-Site Scripting

CMB2 WordPress plugin <= 2.13.1 contains a stored cross-site scripting caused by insufficient input sanitization and output escaping in '<textarea_code field id>' parameter, letting unauthenticated attackers inject scripts executed by users, exploit requires public exposure of CMB2 form with textarea_code field.

CVSS base score 7.2 /10
High
CISA KEV
Not listed
Public exploit
None known
Authentication
Not required
EPSS
0.31% chance of exploitation in 30 days
View the NVD record ↗

Details

Type
Stored Cross-Site Scripting
Impact
Stored XSS, Client Script Exec
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:L/I:L/A:N
Published
2 October 2026
Updated
15 October 2026
Weakness
CWE-79

Vendor fix

Update to a version later than 2.13.1 or the latest available version.

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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