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5.4
CVSS
Medium

CVE-2021-21087

PUBLISHED

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

Exploited in the wild Remote Low complexity
Vendor
Adobe
Product
ColdFusion
Published
Apr 15, 2021
EPSS
—

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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.

nuclei_scanner

Weaknesses (CWE)

  • CWE-79

    Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')

CVSS scores

CVSS v3.0 5.4 Medium

CVSS:3.0/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N

Exploitation status

Exploited in the wild

Recorded 2025-07-26 00:00:00 UTC · The Shadowserver (via CIRCL)

References

Known exploited vulnerability sources

Catalogues that list this CVE as a known exploited vulnerability.

Source Added
The Shadowserver (via CIRCL) First 2025-07-26 00:00 UTC

Scanner integrations

Scanner Reference Detected
Nuclei https://github.com/projectdiscovery/nuclei-templates/blob/main/http/cves/2021/CVE-2021-21087.yaml Apr 25, 2025

Timeline

  • CVE ID Reserved

  • CVE Published to Public

  • Detected by Nuclei

  • Added to KEVIntel