SOC status:Duty analyst on shift

UK Cyber Defence
VulnerabilityModified

CVE-2017-6922

Drupal core did not previously provide this protection, allowing an access bypass vulnerability to occur.

MEDIUM 6.5EPSS 1.95%

Does this matter?

Lower severity and a low EPSS score (1.95%). Track it; it rarely justifies an emergency change on its own.

Description

In Drupal core 8.x prior to 8.3.4 and Drupal core 7.x prior to 7.56; Private files that have been uploaded by an anonymous user but not permanently attached to content on the site should only be visible to the anonymous user that uploaded them, rather than all anonymous users. Drupal core did not previously provide this protection, allowing an access bypass vulnerability to occur. This issue is mitigated by the fact that in order to be affected, the site must allow anonymous users to upload files into a private file system.

CVSS 3.0
6.5 MEDIUMCVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N
EPSS
1.95% probability · 80th percentile
Public exploits
None in Exploit-DB
CISA KEV
Not listed
Weakness
CWE-552
Affected
drupal/drupal · debian/debian linux
Source
mlhess@drupal.org
EPSS trend
0%3%5%27 October 2026: 1.95%27 October 202627 October 2026

EPSS 1.9% since 27 October 2026; no change recorded yet. Points are recorded when the score first appears and whenever it moves by a percentage point or more.

References

Source: NVD record, EPSS from FIRST.org, KEV from CISA, exploits from Exploit-DB. Refreshed daily. Download this record as JSON.