When adding a private file via the editor in Drupal 8.2.x before 8.2.7, the editor will not correctly check access for the file being attached, resulting in an access bypass.
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This high-severity CVE scores 7.5 under NVD CVSS v3. EPSS exploit probability: 0.3%, top 48% of all CVEs by exploit prediction. GitHub Security Advisory data not yet ingested — confidence will rise once GHSA publishes (typical lag: hours to days for open-source ecosystem CVEs; never for infrastructure-only CVEs).
When adding a private file via the editor in Drupal 8.2.x before 8.2.7, the editor will not correctly check access for the file being attached, resulting in an access bypass.
March 16, 2017
May 13, 2026
| Package | Vulnerable range | Fixed in | Dependents |
|---|---|---|---|
| drupal/core | 8.2.0 ... 8.2.6 (7 versions) | 8.2.7 | — |
| drupal/drupal | 8.2.0 ... 8.2.6 (7 versions) | 8.2.7 | — |
Every time one of our enrichment pipelines (NVD, MITRE cvelistV5, EPSS, CISA KEV, GHSA, OSV, vendor advisories) ran against this CVE. Most recent first.
See which npm, PyPI, Go, and Maven packages are affected by CVE-2017-6377
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