CVE-2017-6377

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.

Published: 2017-03-16 Last update: 2026-06-16 Assigner: [email protected] Source: [email protected]
NVD Status：Modified，CVE State: published
View at NVD, CVE.org, EUVD

CVE-2017-6377 is rated Moderate Risk (58.5/100): CVSS High severity, with medium exploitation likelihood (EPSS 1.89%). EPSS rose +1.60% over the last day, indicating growing attacker interest. Review affected assets and schedule remediation.

Risk is dynamic; we continuously reassess and refresh what is shown on this page as upstream context changes.

Exploit prediction scoring system (EPSS) score for CVE-2017-6377

EPSS lead: Daily EPSS estimates relative likelihood of exploitation; percentile ranks this CVE among scored vulnerabilities (higher = more severe relative rank).

# Date Old EPSS score New EPSS score Delta (New - Old)
1 2026-06-15 0.29% 1.89% +1.60%
2 2025-11-21 0.19% 0.29% +0.09%
3 2025-11-18 — 0.19% —

Full EPSS history (11 records total)

Common vulnerability scoring system (CVSS) metrics for CVE-2017-6377

CVSS metrics for this CVE.

Base score Version Severity Vector Exploitability Impact Score source
7.5 3.0 HIGH
CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N Click to expand
Attack vector (AV:N)
Could be attacked over the internet or any normal routed network—not just someone sitting at the machine.
Attack complexity (AC:L)
Once they can reach the bug, pulling it off is straightforward—no weird race conditions or rare setup.
Privileges required (PR:N)
No account or special rights needed—anonymous or random user is enough.
User interaction (UI:N)
Nobody has to click “OK” or open a trap file; it can work without a victim helping.
Scope (S:U)
Damage stays in the same “trust bubble” as the broken component—no big spill into unrelated systems.
Confidentiality (C:N)
Doesn’t really leak secrets in a meaningful way.
Integrity (I:H)
They could widely tamper with or forge data—trust in the data is badly hurt.
Availability (A:N)
Service keeps running; no real outage angle.
 3.9 3.6 [email protected]
5.0 2.0 MEDIUM
AV:N/AC:L/Au:N/C:N/I:P/A:N Click to expand
Access vector (AV:N)
Can be exploited remotely over network reachability.
Access complexity (AC:L)
Exploitation conditions are straightforward and predictable.
Authentication (AU:N)
No authentication is required.
Confidentiality impact (C:N)
No confidentiality impact.
Integrity impact (I:P)
Partial integrity impact.
Availability impact (A:N)
No availability impact.
 10.0 2.9 [email protected]

Weakness enumeration for CVE-2017-6377

GitHub Security Advisory for CVE-2017-6377

GHSA-w7qx-vwr9-2j3r · Severity: high · Ecosystem: composer — Drupal editor module incorrectly checks access to inline private files

OS Trackers for CVE-2017-6377

vendor priority summary link
ubuntu medium CVE-2017-6377 medium priority: Ubuntu including 1 source packages (drupal7), 18 status rows across 18 suites (artful, bionic, cosmic, disco, eoan, focal, groovy, hirsute, impish, jammy, kinetic, lunar, precise, trusty, upstream, xenial, yakkety, zesty): DNE 11, ignored 4, not-affected 3. https://ubuntu.com/security/CVE-2017-6377

Affected software / configurations for CVE-2017-6377

Vendor Product Version Raw CPE
drupal drupal 8.2.0 cpe:2.3:a:drupal:drupal:8.2.0:*:*:*:*:*:*:*
drupal drupal 8.2.0 cpe:2.3:a:drupal:drupal:8.2.0:beta1:*:*:*:*:*:*
drupal drupal 8.2.0 cpe:2.3:a:drupal:drupal:8.2.0:beta2:*:*:*:*:*:*
drupal drupal 8.2.0 cpe:2.3:a:drupal:drupal:8.2.0:beta3:*:*:*:*:*:*
drupal drupal 8.2.0 cpe:2.3:a:drupal:drupal:8.2.0:rc1:*:*:*:*:*:*
drupal drupal 8.2.0 cpe:2.3:a:drupal:drupal:8.2.0:rc2:*:*:*:*:*:*
drupal drupal 8.2.1 cpe:2.3:a:drupal:drupal:8.2.1:*:*:*:*:*:*:*
drupal drupal 8.2.2 cpe:2.3:a:drupal:drupal:8.2.2:*:*:*:*:*:*:*
drupal drupal 8.2.3 cpe:2.3:a:drupal:drupal:8.2.3:*:*:*:*:*:*:*
drupal drupal 8.2.4 cpe:2.3:a:drupal:drupal:8.2.4:*:*:*:*:*:*:*
drupal drupal 8.2.5 cpe:2.3:a:drupal:drupal:8.2.5:*:*:*:*:*:*:*
drupal drupal 8.2.6 cpe:2.3:a:drupal:drupal:8.2.6:*:*:*:*:*:*:*

References for CVE-2017-6377

cvelogic Threat Intelligence