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Fencer Intel
medium 6.5

CVE-2017-6922 json

Files uploaded by anonymous users into a private file system can be accessed by other anonymous users

published 2019-01-22 7 y ago modified 2026-06-17 4 mo ago also GHSA-58f3-cx8p-h8jg , EUVD-2022-2535

cvss
6.5
version 3.0, NVD
cisa kev
Not listed
not in CISA's catalog
epss
1.9%
EPSS 1.9% chance of exploitation in 30 days, percentile 80%
public exploits
0
none known

Summary

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.

Patch / fix

  • packagist drupal/core 7.56, 8.3.4
  • packagist drupal/drupal 7.56, 8.3.4
  • Drupal Drupal Core 7.55, 8.3.3

Vendor advisories

What the vendors themselves say about their products: affected, fixed or not affected, and what to do.

red hat product security vex CVE-2017-6922 updated cvss 5.9

drupal7: Files uploaded by anonymous users into a private file system can be accessed by other anonymous users

  • Red Hat All currently supported Red Hat products
    not affected: vulnerable code not present

Red Hat CSAF VEX © Red Hat, Inc., from https://security.access.redhat.com/data/csaf/v2/vex/; changed: reduced to product statuses and remediations. CC BY 4.0 · csaf

Exploit prediction

1.95% chance of exploitation in the next 30 days, higher than 80% of all scored CVEs (FIRST EPSS, 2026-11-09).

CVSS scores

assigned by version score vector
NVD 3.0 6.5 CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N
NVD 2.0 4.0 AV:N/AC:L/Au:S/C:P/I:N/A:N
GitHub 3.0 6.5 CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N

Affected packages

ecosystem package affected fixed in
packagist drupal/core
>=7.0, <7.56
>=8.0, <8.3.4
7.56
8.3.4
packagist drupal/drupal
>=8.0, <8.3.4
>=7.0, <7.56
8.3.4
7.56

Affected products

  • Drupal Drupal Core

Classification

Weakness
  • CWE-552 Files or Directories Accessible to External Parties

References

Sources

Fencer Intel keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.