CVE-2026-48323 is a critical vulnerability in Adobe Campaign Classic where improper neutralization of special elements used in the template engine (CWE-1336) allows an attacker to execute arbitrary code in the context of the current user. The vulnerability does not require user interaction and changes the security scope, enabling potential full system compromise. The CVSS v3.1 base score is 10.0, reflecting network attack vector, low attack complexity, no privileges required, no user interaction, and complete impact on confidentiality, integrity, and availability. No patch or official remediation guidance is currently available, and no known exploits in the wild have been reported.

Successful exploitation can lead to arbitrary code execution with the privileges of the current user, resulting in complete compromise of confidentiality, integrity, and availability of the affected system. The vulnerability can be exploited remotely without user interaction, increasing its severity and risk.

Patch status is not yet confirmed — check the vendor advisory for current remediation guidance. Until an official fix is released, organizations should monitor Adobe advisories closely and consider applying compensating controls such as restricting network access to Adobe Campaign Classic instances and limiting user privileges where possible.