CVE-2021-21087: ColdFusion Improper neutralization of web input during page generation could lead to arbitrary JavaScript execution in the browser

Severity: medium (CVSS 5.4 v3.1)
Exploited in the wild: not listed in CISA KEV
EPSS: 37.1% probability of exploitation in the next 30 days
Public exploit or detection template: yes
Published: 2021-04-15 · updated 2026-06-17
Weakness: CWE-79

Description

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: 2016, 2016-update1, 2016-update10, 2016-update11, 2016-update12, 2016-update13 (+23)

References

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