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CVE-2020-13675: Drupal's JSON:API and REST/File modules allow file uploads through their HTTP APIs. The modules do not correctly run all

critical Affects drupal/core, drupal/graphql. Feed 2026.10.29.3, updated 2026-10-29; published ; advisory modified .

Drupal's JSON:API and REST/File modules allow file uploads through their HTTP APIs. The modules do not correctly run all

Package
drupal/core Composer
Affected versions
>= 8.0.0 <8.9.19 or >= 9.1.0 <9.1.13 or >=9.2.0 <9.2.6 or >=8.0.0 and <8.9.19 or >=9.1.0 and <9.1.13 or >=9.2.0 and <9.2.6
Fixed in
8.9.19, 9.1.13, 9.2.6
Severity
critical  CVSS 9.8
Exploitation
not on CISA KEV · EPSS 1% (72.1th percentile)
Published
2021-09-15
Source
osv.dev

References

This advisory addresses a similar issue to [Drupal core - Moderately critical - Access bypass - SA-CORE-2021-008](https:

Package
drupal/graphql Composer
Affected versions
>=4.0.0 <4.2.0
Fixed in
4.2.0
Severity
unknown
Exploitation
not on CISA KEV · EPSS 1% (72.1th percentile)
Published
2021-09-15
Source
osv.dev

References

CWE-284CWE-434
NVD recorddrupal/core advisoriesdrupal/graphql advisories

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