CVE-2026-16257 — HIGH (8.2)

Vulnerability Description

The Arvow AI SEO Writer WordPress plugin before 1.5.4 does not properly restrict access to one of its REST endpoints, whose only access control can be bypassed by unauthenticated users through type juggling when the Arvow AI SEO Writer WordPress plugin before 1.5.4 has not been configured, allowing them to create arbitrary posts and pages and to disclose author account and taxonomy information.

CVSS Score

8.2

HIGH

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:H/A:N

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

NONE

User Interaction

NONE

Scope

UNCHANGED

Confidentiality

LOW

Integrity

HIGH

Availability

NONE

Related Weaknesses (CWE)

CWE-287

References

https://wpscan.com/vulnerability/89c32854-1cf1-4fe9-a6d0-6244be2dcc03/

FAQ

What is CVE-2026-16257?

CVE-2026-16257 is a vulnerability with a CVSS score of 8.2 (HIGH). The Arvow AI SEO Writer WordPress plugin before 1.5.4 does not properly restrict access to one of its REST endpoints, whose only access control can be bypassed by unauthenticated users through type ju...

How severe is CVE-2026-16257?

CVE-2026-16257 has been rated HIGH with a CVSS base score of 8.2/10. Review the CVSS metrics above for detailed severity breakdown.

Is there a patch for CVE-2026-16257?

Check the references section above for vendor advisories and patch information. Review vendor security bulletins for remediation guidance.