What is CVE-2026-81402?

CVE-2026-81402 is a critical-severity vulnerability in Ds Ad Rotator, classified under Unrestricted Upload of File with Dangerous Type. CVSS score: 9.8/10. Published 2026-09-12.

How severe is CVE-2026-81402?

Critical severity. CVSS v3 base score is 9.8 out of 10.

Arbitrary file upload in Ds Ad Rotator

CVE-2026-81402

The DS Ad Rotator WordPress plugin through 0.8 does not perform any capability check, nonce verification, or file-type validation on its image upload handler, allowing unauthenticated attackers to upload arbitrary files, including PHP, to a web-accessible directory, which can lead to remote code execution.

Vulnerability class: Unrestricted File Upload

CVSS v3 metric

CVSS v3 base score 9.8 (Critical). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H.

Affected products

Unknown Ds Ad Rotator

Weakness classification (CWE)

CWE-434 — Unrestricted Upload of File with Dangerous Type

References

contact@wpscan.com (technical-description, exploit, vdb-entry)

Frequently asked questions

What is CVE-2026-81402?: CVE-2026-81402 is a critical-severity vulnerability in Ds Ad Rotator, classified under Unrestricted Upload of File with Dangerous Type. CVSS score: 9.8/10. Published 2026-09-12.
How severe is CVE-2026-81402?: Critical severity. CVSS v3 base score is 9.8 out of 10.