EUVD-2026-35829
GHSA-jpc9-55w6-65ch
Severity by source
AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H
Network-reachable ColdFusion endpoint, low-privilege authenticated user can trigger validation flaw with no UI; code execution crosses the CF sandbox (S:C) giving full C/I/A impact.
Primary rating from NVD.
CVSS VectorNVD
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H
Lifecycle Timeline
6DescriptionNVD
ColdFusion versions 2023.19, 2025.8 and earlier are affected by an Improper Input Validation vulnerability that could result in arbitrary code execution in the context of the current user. Exploitation of this issue does not require user interaction. Scope is changed.
AnalysisAI
Arbitrary code execution in Adobe ColdFusion 2023 (up to Update 17/version 2023.19) and ColdFusion 2025 (up to 2025.8) stems from improper input validation (CWE-20) and executes in the context of the current user with a scope change to other components. Adobe PSIRT-reported flaw carries a CVSS 3.1 score of 9.9 but exploitation requires low-privilege authentication (PR:L); no public exploit identified at time of analysis and EPSS is very low at 0.04% (14th percentile). …
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Attack ChainAIDerived
Hypothetical attack flow derived from CVE metadata
Vulnerability AssessmentAI
| Exploitation | Requires network reachability to the ColdFusion HTTP listener and an authenticated session at low privilege (CVSS PR:L) - for example any application user, sandbox tenant, or CF Administrator account with minimal rights - but no user interaction (UI:N) and low attack complexity (AC:L). … Additional conditions and limiting factors are described in the full assessment. |
| Risk Assessment | Signals are conflicting and warrant careful weighting. … Full risk analysis with EPSS, KEV, and SSVC signal comparison available after sign-in. |
| Exploit Scenario | An attacker who has obtained any low-privileged ColdFusion account - for example via credential stuffing against a customer portal, a self-registration feature, or a chained authentication bypass - sends a crafted request to a vulnerable CFML or CFC endpoint whose input validation flaw permits attacker-controlled data to reach a code-execution sink. Because Scope:Changed, the resulting code execution can move beyond the originating component (e.g., into the JVM or host context), allowing the attacker to drop a webshell, harvest CF datasources/credentials, and pivot into the internal network. … |
| Remediation | Patch available per vendor advisory: apply the updates referenced in Adobe Security Bulletin APSB26-64 at https://helpx.adobe.com/security/products/coldfusion/apsb26-64.html, which supersedes ColdFusion 2023.19 and 2025.8 (consult the bulletin for the exact post-fix build numbers since they are not enumerated in the provided data). … Detailed patch versions, workarounds, and compensating controls in full report. |
Recommended ActionAI
Within 24 hours: Identify all ColdFusion 2023 (Update 17 or earlier) and 2025 (version 2025.8 or earlier) installations; audit low-privilege user account permissions; enable daily monitoring of authentication logs for suspicious activity. …
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External POC / Exploit Code
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