XSS in Adobe Coldfusion
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.
Vulnerability class: XSS (Cross-Site Scripting)
Published · last modified .
CVSS v3 metric
CVSS v3 base score 5.4 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N.
EPSS exploit prediction
EPSS: 0.371 (98.5th percentile), scored .
Moderate probability of exploitation in the next 30 days — watch for active exploitation reports. 98th percentile — 98.5% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.371 · newest: 0.371 · change: 0.000
Affected products
- Adobe Coldfusion — versions unspecified, 2016, 2018
Weakness classification (CWE)
Public proof-of-concept exploits
References
- helpx.adobe.com/security/products/coldfusion/apsb21-16.html (Patch, Vendor Advisory)
Frequently asked questions
- What is CVE-2021-21087?
- CVE-2021-21087 is a medium-severity vulnerability in Adobe Coldfusion, classified under Cross-site Scripting. CVSS score: 5.4/10. Published 2021-04-15.
- How severe is CVE-2021-21087?
- Medium severity. CVSS v3 base score is 5.4 out of 10.
- Is CVE-2021-21087 known to be exploited?
- 11 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.