CVE-2021-21087: Adobe ColdFusion

Medium severity, CVSS 5.4. EPSS: 37.1% chance of exploitation in the next 30 days.

Adobe Coldfusion versions 2016 (update 16 and earlier), 2018 (update 10 and earlier) and 2021.0.0.323925 are affected by an Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') vulnerability. An attacker could abuse this vulnerability to execute arbitrary JavaScript code in context of the current user. Exploitation of this issue requires user interaction.

Affected products

• Adobe ColdFusion: version 2016 only; version 2018 only; version 2021.0.0.323925 only

Published 2021-04-15. Last modified 2026-06-17.