CVE-2021-21087

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.

CVSS v3.1

5.4 MEDIUMCVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N

CVSS v3.0

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

CVSS v2.0

3.5 LOWAV:N/AC:M/Au:S/C:N/I:P/A:N

EPSS

37.09% chance of exploitation in the next 30 days, 98th percentile

Nuclei

medium · CWE-79

Published

2021-04-15

Updated

2025-04-23

Nuclei templates (1)

• projectdiscovery/nuclei-templates/blob/main/http/cves/2021/CVE-2021-21087.yaml

Exploit collections (1)

• tzwlhack/Vulnerability/blob/main/Adobe%20ColdFusion%20%E8%BF%9C%E7%A8%8B%E4%BB%A3%E7%A0%8…

References

• CVE Record
• NVD entry

Related

• CVE-2021-21086
• CVE-2021-2109
• CVE-2021-21042
• CVE-2021-21110
• CVE-2021-21017
• CVE-2021-21123