CVE-2026-110018 aBlocks WordPress Plugin - Privilege Escalation

aBlocks WordPress plugin <= 2.17.0 contains a privilege escalation caused by improper permission checks and roleSlug manipulation in /ablocks/v1/form-builder/registration REST endpoint, letting authenticated contributors escalate to Editor or other non-admin roles, exploit requires contributor-level access and valid wp_rest nonce.

CVSS base score 8.8 /10
High
CISA KEV
Not listed
Public exploit
None known
Authentication
Required
EPSS
0.39% chance of exploitation in 30 days
View the NVD record ↗

Details

Type
Privilege Escalation
Impact
Privilege Escalation
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Published
24 October 2026
Updated
26 October 2026
Weakness
CWE-269

Vendor fix

Update to a version later than 2.17.0 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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