CVE-2026-48323 Adobe Campaign Classic (ACC) | Improper Neutralization of Special Elements Used in a Template Engine (CWE-1336)

Critical 10.0 Published 3 Aug 2026 Updated 27 Aug 2026

An attacker can execute arbitrary code in Adobe Campaign Classic via template injection without user interaction, requiring immediate patching.

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

What is CVE-2026-48323?

CVE-2026-48323 is a critical code injection vulnerability in Adobe Campaign Classic, published on 3 Aug 2026. An attacker can exploit it over the internet without logging in, with no action from the victim.

Official description

Adobe Campaign Classic (ACC) is affected by an Improper Neutralization of Special Elements Used in a Template Engine vulnerability that could result in arbitrary code execution in the context of the current user. An attacker could exploit this vulnerability to execute arbitrary code. Exploitation of this issue does not require user interaction. Scope is changed.

Weakness: CWE-1336

Which versions are affected by CVE-2026-48323?

It affects 1 product.

Products include Adobe Campaign.

How do I fix CVE-2026-48323?

No fix has been published for CVE-2026-48323 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-2026-48323 being exploited?

There is no known exploitation of CVE-2026-48323 in the wild and no public exploit code.

Sources

Also known as GHSA-w9r5-8hh9-9cvp.