# CVE-2026-89276: Adobe Campaign Classic code injection vulnerability

Source: https://junglewise.ai/threats/cve-2026-89276-adobe-campaign-classic-acc-is-affected-by-an-improper-control-of  
Publisher: Junglewise Threat Intelligence, https://junglewise.ai/threats  
Published: 2026-09-22. Updated: 2026-09-26  
License: CC BY 4.0 with a link back

CVE-2026-89276 · Severity: critical · CVSS 9.9 · Published 2026-09-22

Adobe Campaign Classic is an email marketing and campaign management platform used by organizations to create and manage customer communications. A code injection flaw allows low-privileged attackers to execute arbitrary code within the application context without requiring user interaction, potentially compromising the system and its data. This vulnerability has a critical severity rating and could enable attackers to gain unauthorized control over the platform.

Technologies: [Adobe Campaign Classic](https://junglewise.ai/threats/technologies/campaign-classic), [Linux Kernel](https://junglewise.ai/threats/technologies/kernel), [Microsoft Windows](https://junglewise.ai/threats/technologies/windows). Vendors: [Adobe](https://junglewise.ai/threats/vendors/adobe), [Linux](https://junglewise.ai/threats/vendors/linux), [Microsoft](https://junglewise.ai/threats/vendors/microsoft).

## Quick answers

**Is CVE-2026-89276 exploited in the wild?** No. Junglewise Threat Intelligence has no report of CVE-2026-89276 being exploited in the wild.

**How severe is CVE-2026-89276?** Critical severity, with a CVSS score of 9.9, published 22 September 2026.

**Which products and versions are affected?** Adobe Campaign Classic.

**Is there a fix for CVE-2026-89276?** No fixed version is recorded yet. Check the vendor's advisory in the references below. If you run it, Junglewise drafts a mitigation that fits your setup and applies it once you approve, with senior security engineers behind it.

**How is CVE-2026-89276 attacked?** It is attacked over the network, in a web application.

**Am I affected by CVE-2026-89276?** Check whether you run Adobe Campaign Classic, Linux Kernel or Microsoft Windows. Junglewise does that check for you around the clock: connect your code, cloud and domains, and it matches new vulnerabilities like this one against what you actually run and tells you when one reaches you.

## Technical details

An improper control of code generation vulnerability in Adobe Campaign Classic allows code injection attacks. A low-privileged authenticated attacker can exploit this flaw to execute arbitrary code in the context of the current user without requiring user interaction. The vulnerability has been assigned CVSS 9.9 and involves a change in scope, indicating the impact extends beyond the vulnerable component itself.

## Affected products

- Adobe Campaign Classic

## Timeline

- 2026-09-22: disclosed

## References

- [https://helpx.adobe.com/security/products/campaign/apsb26-142.html](https://helpx.adobe.com/security/products/campaign/apsb26-142.html)

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