What is CVE-2026-21269?

CVE-2026-21269 is a medium-severity vulnerability in Adobe Coldfusion 2023, 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.

XSS in Adobe Coldfusion 2023

CVE-2026-21269

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 the…

Vulnerability class: XSS (Cross-Site Scripting)

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.

Affected products

Adobe Coldfusion 2023 — versions 0, 2023.0.23
Adobe Coldfusion 2025 — versions 0, 2025.0.12

Weakness classification (CWE)

CWE-79 — Cross-site Scripting

References

psirt@adobe.com (vendor-advisory)

Frequently asked questions

What is CVE-2026-21269?: CVE-2026-21269 is a medium-severity vulnerability in Adobe Coldfusion 2023, 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.