XSS in Adobe Coldfusion
CVE-2026-21269
ColdFusion is affected by a stored Cross-Site Scripting (XSS) vulnerability that could be abused by a low-privileged attacker to inject malicious scripts into vulnerable form fields. Malicious JavaScript may be executed in a victim's browser when they browse to the page containing the vulnerable field. Scope is changed.
Vulnerability class: XSS (Cross-Site Scripting)
Published · last modified .
CVSS v3 metric
CVSS v3 base score 4.6 (Medium). Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N.
EPSS exploit prediction
EPSS: 0.005 (39.9th percentile), scored .
Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 40th percentile — 39.9% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.003 · newest: 0.005 · change: +0.002
Affected products
- Adobe Coldfusion — versions 2023, 2025
- Adobe Coldfusion 2023 — versions 0, 2023.0.23
- Adobe Coldfusion 2025 — versions 0, 2025.0.12
Weakness classification (CWE)
References
- helpx.adobe.com/security/products/coldfusion/apsb26-90.html (vendor-advisory, Vendor Advisory)
- helpx.adobe.com/security/products/coldfusion/apsb26-119.html (vendor-advisory)
Frequently asked questions
- What is CVE-2026-21269?
- CVE-2026-21269 is a medium-severity vulnerability in Adobe Coldfusion, classified under Cross-site Scripting. CVSS score: 4.6/10. Published 2026-08-11.
- How severe is CVE-2026-21269?
- Medium severity. CVSS v3 base score is 4.6 out of 10.