CVE-2026-21269 is a stored Cross-Site Scripting (CWE-79) vulnerability in Adobe ColdFusion 2025. It allows an attacker with low privileges to inject malicious JavaScript into form fields that are stored and later rendered in a victim's browser, leading to script execution. The vulnerability affects confidentiality and integrity with no impact on availability. The CVSS 3.1 base score is 4.6, with attack vector local, low attack complexity, low privileges required, user interaction required, and scope changed.

Successful exploitation can lead to the execution of arbitrary JavaScript in the context of the victim's browser, potentially compromising confidentiality and integrity of user data. There is no impact on system availability. The attack requires the attacker to have low privileges and the victim to interact with the malicious content.

Patch status is not yet confirmed — check the vendor advisory for current remediation guidance. No official fix or workaround information is provided at this time. Users should monitor Adobe's advisories for updates and apply patches once available.