What is CVE-2026-83660?

CVE-2026-83660 is a critical-severity vulnerability in Adobe Campaign Classic, classified under Server-Side Request Forgery (SSRF). CVSS score: 9.9/10. Published 2026-09-22.

How severe is CVE-2026-83660?

Critical severity. CVSS v3 base score is 9.9 out of 10.

SSRF in Adobe Campaign Classic

CVE-2026-83660

Adobe Campaign Classic (ACC) is affected by a Server-Side Request Forgery (SSRF) vulnerability that could result in privilege escalation. Exploitation of this issue does not require user interaction. Scope is changed.

Vulnerability class: SSRF (Server-Side Request Forgery)

Published 2026-09-22 · last modified 2026-09-22.

CVSS v3 metric

CVSS v3 base score 9.9 (Critical). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:L/A:L.

EPSS exploit prediction

No EPSS score from FIRST.org yet. New CVEs usually get one within a few days; no score means no signal yet, not low risk. How EPSS works.

Affected products

Adobe Campaign Classic

Weakness classification (CWE)

CWE-918 — Server-Side Request Forgery (SSRF)

References

helpx.adobe.com/security/products/campaign/apsb26-142.html (vendor-advisory)

Frequently asked questions

What is CVE-2026-83660?: CVE-2026-83660 is a critical-severity vulnerability in Adobe Campaign Classic, classified under Server-Side Request Forgery (SSRF). CVSS score: 9.9/10. Published 2026-09-22.
How severe is CVE-2026-83660?: Critical severity. CVSS v3 base score is 9.9 out of 10.