CVE-2020-13675

highpriority · track · 39EPSS 0.014 · 72 %ileEUUS
grimoire priorityP2 · Scheduled
Exploitable?
—
no known exploitation
Likely / severe?
1.39% (72nd) EPSS
CVSS 7.5 · high
Is it mine?
13 products
Check your exposure
Who says so?
4 sources
cnnvd · enisa_euvd · osv · nvd

EPSS · scored 2026-10-24

Drupal's JSON:API and REST/File modules allow file uploads through their HTTP APIs. The modules do not correctly run all file validation, which causes an access bypass vulnerability. An attacker might be able to upload files that bypass the file validation process implemented by modules on the site.

01

cvss

Technical severity, 0–10. One row per scoring source.

9.8
010

base score 0–10 · higher = more severe · hover a vector to decode⚠ sources disagree · high–critical · 7.5–9.8

v2.07.5highAV:N/AC:L/Au:N/C:P/I:P/A:Pprimary · NVD / NIST USexploitability 10 · impact 6.4
v3.19.8criticalCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:Hprimary · NVD / NIST USexploitability 3.9 · impact 5.9
v3.19.8criticalCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:Hsecondary · OSV
v3.19criticalCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H/E:Usecondary · CVSS-BT (t0sche)
02

weaknesses

The CWE weakness classes this flaw belongs to.

03

affected products (13)

Products and version ranges known to be affected.

04

advisories (4)

Vendor and ecosystem advisories describing this.

  • GHSA-v8wr-r69p-mmwxUnrestricted Upload of File with Dangerous Type in Drupal core2022-02-12ghsa · osvUS

    Drupal's JSON:API and REST/File modules allow file uploads through their HTTP APIs. The modules do not correctly run all file validation, which causes an access bypass vulnerability. An attacker might be able to upload files that bypass the file validation process implemented by modules on the site.

  • BIT-drupal-2020-136752024-03-06vendor · osvUS

    Drupal's JSON:API and REST/File modules allow file uploads through their HTTP APIs. The modules do not correctly run all file validation, which causes an access bypass vulnerability. An attacker might be able to upload files that bypass the file validation process implemented by modules on the site.

  • DRUPAL-CONTRIB-2021-0292021-09-15vendor · osvUS

    This advisory addresses a similar issue to [Drupal core - Moderately critical - Access bypass - SA-CORE-2021-008](https://www.drupal.org/sa-core-2021-008). The GraphQL module allows file uploads through its HTTP API. The module does not correctly run all file validation, which causes an access bypass vulnerability. An attacker might be able to upload files that bypass the file validation process implemented by modules on the site. This vulnerability is mitigated by four factors: 1. The GraphQL module must be enabled on the site. 2. The GraphQL schema must expose a file upload by using the helper "src/GraphQL/Utility/FileUpload.php" in the module. 3. An attacker must have access to that file upload via the GraphQL API. 4. The site must employ a file validation module.

  • DRUPAL-CORE-2021-0082021-09-15vendor · osvUS

    Drupal's JSON:API and REST/File modules allow file uploads through their HTTP APIs. The modules do not correctly run all file validation, which causes an access bypass vulnerability. An attacker might be able to upload files that bypass the file validation process implemented by modules on the site. This vulnerability is mitigated by three factors: 1. The JSON:API or REST File upload modules must be enabled on the site. 2. An attacker must have access to a file upload via JSON:API or REST. 3. The site must employ a file validation module. This advisory is not covered by [Drupal Steward](/steward). Also see [GraphQL - Moderately critical - Access bypass - SA-CONTRIB-2021-029](https://www.drupal.org/sa-contrib-2021-029) which addresses a similar vulnerability for that module.

05

also known as (7)

Other names and identifiers for this entity.

06

sources

Which sources assert this record, and when.

published 2022-02-11modified 2026-06-17
08

references (9)

External citations — patches, advisories, analysis.

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