CVE-2026-82003 Adobe Campaign Classic (ACC) | Improper Input Validation (CWE-20)

High 8.5 Published 22 Sep 2026 Updated 26 Sep 2026

A low-privileged attacker can execute arbitrary code in Adobe Campaign Classic due to improper input validation, requiring no user interaction.

Exploited in the wild: Not known
Login needed: Any signed-in user
Attackable: Over the internet
Victim action needed: Not needed
Fix: None listed

What is CVE-2026-82003?

CVE-2026-82003 is a high-severity code injection vulnerability in Adobe Campaign Classic, published on 22 Sep 2026. Any signed-in user can exploit it over the network, with no action from the victim.

Official description

Adobe Campaign Classic (ACC) is affected by an Improper Input Validation vulnerability that could result in arbitrary code execution in the context of the current user. A low-privileged attacker could exploit this vulnerability to execute arbitrary code. Exploit depends on conditions beyond the attacker's control. Exploitation of this issue does not require user interaction. Scope is changed.

Weakness: CWE-20

Which versions are affected by CVE-2026-82003?

It affects 1 product.

Products include Adobe Campaign.

How do I fix CVE-2026-82003?

No fix has been published for CVE-2026-82003 yet. Limit exposure of the affected software until one is available.

Upgrade, and never evaluate templates, expressions or code built from user input. More about Code injection.

Is CVE-2026-82003 being exploited?

There is no known exploitation of CVE-2026-82003 in the wild and no public exploit code.

Sources

Also known as GHSA-3fgx-p55x-rvwv.