Medium severity5.9NVD Advisory· Published Jan 15, 2019· Updated Jun 17, 2026
CVE-2017-6921
CVE-2017-6921
Description
In Drupal 8 prior to 8.3.4; The file REST resource does not properly validate some fields when manipulating files. A site is only affected by this if the site has the RESTful Web Services (rest) module enabled, the file REST resource is enabled and allows PATCH requests, and an attacker can get or register a user account on the site with permissions to upload files and to modify the file resource.
AI Insight
LLM-synthesized narrative grounded in this CVE's description and references.
Affected packages
Versions sourced from the GitHub Security Advisory.
| Package | Affected versions | Patched versions |
|---|---|---|
drupal/corePackagist | >= 8.0, < 8.3.4 | 8.3.4 |
drupal/drupalPackagist | >= 8.0, < 8.3.4 | 8.3.4 |
Affected products
4- ghsa-coords2 versions
>= 8.0, < 8.3.4+ 1 more
- (no CPE)range: >= 8.0, < 8.3.4
- (no CPE)range: >= 8.0, < 8.3.4
- Range: Drupal 8
Patches
Vulnerability mechanics
References
8- www.securityfocus.com/bid/99222nvdThird Party AdvisoryVDB EntryWEB
- www.securitytracker.com/id/1038781nvdThird Party AdvisoryVDB EntryWEB
- github.com/advisories/GHSA-h377-287m-w2r9ghsaADVISORY
- nvd.nist.gov/vuln/detail/CVE-2017-6921ghsaADVISORY
- www.drupal.org/forum/newsletters/security-advisories-for-drupal-core/2017-06-21/drupal-core-multiplenvdMitigationVendor AdvisoryWEB
- github.com/FriendsOfPHP/security-advisories/blob/master/drupal/core/CVE-2017-6921.yamlghsaWEB
- github.com/FriendsOfPHP/security-advisories/blob/master/drupal/drupal/CVE-2017-6921.yamlghsaWEB
- www.drupal.org/SA-CORE-2017-003ghsaWEB
News mentions
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