Vulnerability · Published Aug 11, 2026 · Assigned by adobe
CVE-2026-21273ColdFusion | Improper Input Validation (CWE-20)
High 8.7
In plain English
A high-severity improper input validation in ColdFusion 2023 from Adobe. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 0.9% (higher than 59% of all known vulnerabilities).
Severity (CVSS 3.1)8.7High
Exploit odds (30 days)0.9%top 41.2% of all CVEs
Exploited in the wildNo reportsCISA SSVC: none
Attack toolingNoneno public tooling known
Official description
is affected by an Improper Input Validation vulnerability that could result in privilege escalation. A low-privileged attacker could exploit this vulnerability to gain unauthorized read and write access. Exploitation of this issue requires user interaction in that a victim must open a malicious file. Scope is changed.
Affected products (as reported)
| Vendor | Product | Versions |
|---|---|---|
| Adobe | ColdFusion 2025 | 0 – through 2025.0.11 |
| Adobe | ColdFusion 2023 | 0 – through 2023.0.22 |
Weakness: CWE-20 · Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:H/I:H/A:N