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
Published Mar 1, 2018
5.3
MEDIUMCVSS 3.0
EPSS 1.02%
Description
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.
Affected products
-
- Version Drupal 7.x versions before 7.57StatusaffectedConstraints-
- Version
Default status is the baseline for the product, each version can override it (e.g. patched versions marked unaffected).
| Vendor | Product | Default status | Versions | ||||||
|---|---|---|---|---|---|---|---|---|---|
| Drupal.org | Drupal Core | n/a |
|
Configuration 2
- 7.0
- 8.0
- 9.0
No data.
No Red Hat product state for this CVE.
No package ranges for this CVE.
Remediation
No remediation recorded yet.
Metrics
No CVSS v4.0 score for this CVE.
No CVSS v3.1 score for this CVE.
CVSS:3.0/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:N/A:N
AV:N/AC:M/Au:S/C:P/I:N/A:N
This CVE is not in the KEV list.
No CISA SSVC assessment for this CVE yet.
Estimated probability of exploitation in the wild in the next 30 days (FIRST EPSS). As of Oct 1, 2026.
Score over time
2021–2026- EPSS v1
- EPSS v5
- EPSS v2
- EPSS v3
Percentile over time
- EPSS v1
- EPSS v5
- EPSS v2
- EPSS v3
Table of values (9 key points)
Flat stretches are collapsed; showing up to 120 newest points.
| Date | Score | Percentile | Model |
|---|---|---|---|
| Oct 1, 2026 | 1.02% (0.01020) | 62.09th | v5 (v2026.06.15) |
| Sep 20, 2026 | 1.02% (0.01020) | 61.89th | v5 (v2026.06.15) |
| Jul 20, 2024 | 0.09% (0.00088) | 38.36th | v3 (v2023.03.01) |
| Jun 22, 2024 | 0.09% (0.00088) | 38.16th | v3 (v2023.03.01) |
| Mar 7, 2023 | 0.09% (0.00088) | 36.14th | v3 (v2023.03.01) |
| Mar 6, 2023 | 0.89% (0.00890) | 30.33th | v2 (v2022.01.01) |
| Feb 4, 2022 | 0.89% (0.00890) | 12.04th | v2 (v2022.01.01) |
| Feb 3, 2022 | 0.83% (0.00833) | 24.58th | v5 (v2026.06.15) |
| Apr 14, 2021 | 0.83% (0.00833) | 0.00th | v1 |
References (7)
- https://github.com/FriendsOfPHP/security-advisories/blob/master/drupal/core/CVE-2017-6928.yaml
- https://github.com/FriendsOfPHP/security-advisories/blob/master/drupal/drupal/CVE-2017-6928.yaml
- https://github.com/advisories/GHSA-66mv-q8r2-hj8w Advisory
- https://lists.debian.org/debian-lts-announce/2018/02/msg00030.html mailing-listx_refsource_MLISTThird Party Advisory
- https://nvd.nist.gov/vuln/detail/CVE-2017-6928
- https://www.debian.org/security/2018/dsa-4123 vendor-advisoryx_refsource_DEBIANIssue Tracking
- https://www.drupal.org/sa-core-2018-001 x_refsource_CONFIRMVendor Advisory
| Link | Providers | Tags |
|---|---|---|
| https://github.com/FriendsOfPHP/security-advisories/blob/master/drupal/core/CVE-2017-6928.yaml | ||
| https://github.com/FriendsOfPHP/security-advisories/blob/master/drupal/drupal/CVE-2017-6928.yaml | ||
| https://github.com/advisories/GHSA-66mv-q8r2-hj8w | Advisory | |
| https://lists.debian.org/debian-lts-announce/2018/02/msg00030.html | mailing-listx_refsource_MLISTThird Party Advisory | |
| https://nvd.nist.gov/vuln/detail/CVE-2017-6928 | ||
| https://www.debian.org/security/2018/dsa-4123 | vendor-advisoryx_refsource_DEBIANIssue Tracking | |
| https://www.drupal.org/sa-core-2018-001 | x_refsource_CONFIRMVendor Advisory |
Change history (0)
No recorded changes yet.