Drupal core 7.x versions before 7.57 when using Drupal's private file system, Drupal will check to make sure a user has access to a file before allowing the user to view or download it. This check fails under certain conditions in which one module is trying to grant access to the file and another is trying to deny it, leading to an access bypass vulnerability. This vulnerability is mitigated by the fact that it only occurs for unusual site configurations.
CVE-2017-6928
This medium-severity CVE scores 5.3 under NVD CVSS v3. EPSS exploit probability: 0.3%, top 49% 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).
- Lower severity and no public exploit yet
No vendor fix yet — apply a workaround or compensating control (WAF / firewall / segmentation) and watch for a patch.
- CVSS v3
- 5.3
- EG Score
- 5.3(medium)
- EPSS
- 60.4%
- KEV
- Not listed
Published
March 1, 2018
Last Modified
November 21, 2024
References (6)
- mlhess@drupalhttps://lists.debian.org/debian-lts-announce/2018/02/msg00030.html
- mlhess@drupalhttps://www.debian.org/security/2018/dsa-4123
- mlhess@drupalhttps://www.drupal.org/sa-core-2018-001
- af854a3a-2127-422b-91ae-364da2661108https://lists.debian.org/debian-lts-announce/2018/02/msg00030.html
- af854a3a-2127-422b-91ae-364da2661108https://www.debian.org/security/2018/dsa-4123
- af854a3a-2127-422b-91ae-364da2661108https://www.drupal.org/sa-core-2018-001
Affected Packages
(2 across 1 ecosystem)
Packagist(2)
| Package | Vulnerable range | Fixed in | Dependents |
|---|---|---|---|
| drupal/core | — | 7.57 | — |
| drupal/drupal | — | 7.57 | — |
Weakness Classification(1)
MITRE Common Weakness Enumeration — the root-cause categories this CVE belongs to.
Data Freshness Timeline
(refreshed 12× in last 7d / 45× in last 30d)
Each row is a source pipeline that fetched or updated this CVE on that date, with what changed. For example, "NVD update" means NVD published or revised its analysis for this CVE; "MITRE cvelistV5" means we ingested or refreshed it from the CNA feed. Most recent first.
- 2026-07-22 14:04 UTCEPSS rescore
- 2026-07-21 16:48 UTCOSV refresh
- 2026-07-21 15:21 UTCEPSS rescore
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- 2026-07-19 14:28 UTCEPSS rescore
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- 2026-07-18 10:01 UTCEPSS rescore
- 2026-07-16 16:59 UTCEPSS rescore
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- 2026-07-07 13:42 UTCEPSS rescore
- 2026-07-06 16:24 UTCEPSS rescore
- 2026-07-06 16:24 UTCEPSS rescore
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- 2026-07-06 02:20 UTCEPSS rescore
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- 2026-07-05 02:27 UTCEPSS rescore
- 2026-07-04 12:26 UTCOSV refresh
- 2026-07-04 06:28 UTCEPSS rescore
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- 2026-07-02 16:54 UTCEPSS rescore
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- 2026-06-30 23:19 UTCEPSS rescore
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- 2026-06-18 17:50 UTCEPSS rescore
- 2026-06-17 17:50 UTCEPSS rescore
- 2026-06-16 17:50 UTCEPSS rescore
- 2026-06-16 00:14 UTCOSV refresh
- 2026-06-15 17:45 UTCEPSS rescore
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- 2026-06-11 13:57 UTCEPSS rescore
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- 2026-06-08 14:14 UTCEPSS rescore
- 2026-06-08 14:14 UTCEPSS rescore
- 2026-06-07 15:22 UTCEPSS rescore
- 2026-06-07 15:22 UTCEPSS rescore
- 2026-06-06 13:45 UTCEPSS rescore
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- 2026-06-04 13:10 UTCEPSS rescore
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- 2026-06-02 20:11 UTCEPSS rescore
- 2026-06-02 20:11 UTCEPSS rescore
- 2026-06-01 13:49 UTCEPSS rescore
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- 2026-05-31 22:28 UTCEPSS rescore
- 2026-05-31 00:14 UTCEPSS rescore
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- 2026-05-29 13:41 UTCEPSS rescore
- 2026-05-28 13:42 UTCEPSS rescore
- 2026-05-28 13:42 UTCEPSS rescore
- 2026-05-28 10:54 UTCEG score recompute
- 2026-05-27 13:38 UTCEPSS rescore
- 2026-05-27 13:38 UTCEPSS rescore
- 2026-05-26 17:01 UTCOSV refresh
- 2026-05-26 13:42 UTCEPSS rescore
- 2026-05-26 07:17 UTCEPSS rescore
- 2026-05-26 07:17 UTCEPSS rescore
Related CVEs(same CWE)
Same CWE
10 shownCWE-732
Frequently asked(5)
What is CVE-2017-6928?
When was CVE-2017-6928 disclosed?
Is CVE-2017-6928 actively exploited?
What is the CVSS score of CVE-2017-6928?
How do I remediate CVE-2017-6928?
Dependency Blast Radius
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