CVE-2021-21087

ColdFusion Improper neutralization of web input during page generation could lead to arbitrary JavaScript execution in the browser

MEDIUM
5.4
CVSS Score
Published: April 15, 2021 at 01:54 PM UTC
Updated: June 17, 2026 at 03:34 AM UTC
1 product affected across 1 vendorColdFusion

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Severity
MEDIUM5.4
Exploit prediction
EPSS 37%
SSVC
No known exploit

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

Remediation

No guide yet

No remediation guidance has been written for this CVE yet. What the record does show:

References (1)

SSVC — Action Prioritization

SSVCNo known exploitNot automatablePartial impact

SSVC signals action urgency (what to patch first), separate from CVSS which measures severity.

CVSS

Attack Vector
NETWORK
Complexity
LOW
Privileges
LOW
User Interaction
REQUIRED
Scope
CHANGED
Confidentiality
LOW
Integrity
LOW
Availability
NONE
Vector?

Quick Info

StatusMODIFIED
CWE
CWE-79

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