EUVD-2026-66201
GHSA-v8xf-hg3w-8w7m
Severity by source
AV:N/AC:H/PR:H/UI:R/S:U/C:H/I:H/A:N
PR:H and UI:R confirmed by admin-level access requirement and victim interaction needed; AC:H reflects non-trivial exploitation complexity; A:N as no availability impact is described.
Primary rating from Vendor (drupal).
CVSS VectorVendor: drupal
Lifecycle Timeline
3DescriptionCVE.org
Vulnerability in Drupal Development Environment. This issue affects Development Environment versions: *.*.
AnalysisAI
Improper input validation in the Drupal Development Environment contributed module (all versions, CPE cpe:2.3:a:drupal:development_environment) allows a highly privileged, authenticated network attacker - with user interaction - to compromise both confidentiality and integrity of the affected system. The CVSS vector (AV:N/AC:H/PR:H/UI:R) constrains real-world impact significantly: exploitation requires administrative credentials, a complex attack scenario, and victim interaction. …
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Attack ChainAIDerived
Hypothetical attack flow derived from CVE metadata
Vulnerability AssessmentAI
| Exploitation | Exploitation requires three concurrent conditions. … Additional conditions and limiting factors are described in the full assessment. |
| Risk Assessment | Despite C:H and I:H impact ratings, the composite real-world risk is substantially reduced by the stringent attack prerequisites encoded in the CVSS vector: AC:H (non-trivial exploitation complexity), PR:H (administrative privileges required), and UI:R (victim must take an action). … Full risk analysis with EPSS, KEV, and SSVC signal comparison available after sign-in. |
| Exploit Scenario | Full exploit scenario with step-by-step reproduction available after sign-in. |
| Remediation | Consult the Drupal security advisory at https://www.drupal.org/sa-contrib-2026-089 for the authoritative patch or updated module version, as no specific fixed version number was present in the available input data. … Detailed patch versions, workarounds, and compensating controls in full report. |
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Same weakness CWE-20 – Improper Input Validation
View allSame technique Information Disclosure
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External POC / Exploit Code
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