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CVE-2026-76193 – SSRF Leading to Arbitrary Code Execution – Adobe Campaign Classic (ACC) v7 ≤ 7.4.4

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Summary

CVE-2026-76193 is a critical Server-Side Request Forgery (SSRF) vulnerability in Adobe Campaign Classic (ACC) v7 that can result in arbitrary code execution in the context of the current user. The flaw requires no authentication and no user interaction, and Adobe has assigned it the maximum CVSS v3.1 base score of 10.0. It was published by Adobe on August 25, 2026, alongside other critical fixes in the same security bulletin.

Technical details

  • Root cause: Improper restriction of server-side requests (CWE-918) within Adobe Campaign Classic allows an attacker-controlled input to force the server to issue requests to arbitrary internal or external destinations.
  • Trigger conditions: No privileges and no user interaction are required to exploit the vulnerability; it can be triggered remotely over the network.
  • Attack vector: Network (AV:N) — the vulnerability is exploitable directly against a reachable ACC on-premise instance without any local access.
  • Impact: Successful exploitation results in arbitrary code execution in the context of the current user, with the CVSS vector reflecting a changed scope and high impact to confidentiality, integrity, and availability of the affected system.
  • Scope: Per Adobe, this bulletin applies only to fully on-premise deployments of Adobe Campaign Classic and to the on-premise components of hybrid deployments. Adobe-hosted instances were already remediated by Adobe and require no customer action.

Affected software

  • Adobe Campaign Classic (ACC) v7: build 9400 and earlier (Windows and Linux platforms)
  • Fixed in: ACC v7 build 9401 and later

Severity

  • CVSS v3.1 Base Score: 10.0 (Critical)
  • Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H
  • CWE: CWE-918 (Server-Side Request Forgery)
  • Adobe Priority Rating: 1 (highest — Adobe recommends immediate remediation)

Mitigation and recommended actions

  • Immediate: Upgrade all fully on-premise Adobe Campaign Classic v7 deployments (and the on-premise components of hybrid deployments) to build 9401 or later, as published in Adobe’s security bulletin.
  • Adobe-hosted (SaaS/managed) ACC instances have already been remediated by Adobe; no customer action is required for those environments.
  • Until the patch is applied, restrict network exposure of the on-premise ACC management/application interfaces to trusted networks only, and monitor egress traffic from the ACC server for anomalous outbound requests indicative of SSRF exploitation attempts.
  • Review Adobe’s release notes for build 9401 to confirm the specific components updated and validate the patched version after deployment.

References

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