How severe is CVE-2020-13675?

CVE-2020-13675 has a CVSS 3.x base score of 9.8, rated critical severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.

Is CVE-2020-13675 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (65th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2020-13675?

CVE-2020-13675 affects Drupal. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2020-13675?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its critical severity, prioritise patching exposed systems.

When was CVE-2020-13675 published?

CVE-2020-13675 was published on 2022-02-11 and last updated on 2026-06-17.

CVE-2020-13675

CVE-2020-13675 is a critical-severity vulnerability in Drupal with a CVSS 3.x base score of 9.8. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-434.

Key facts

Severity: Critical (CVSS 3.x base score 9.8)
CVSS v2: 7.5
EPSS exploit prediction: 1% (65th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-434
Affected product: Drupal
Published: 2022-02-11
Last modified: 2026-06-17

Description

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.

Frequently asked questions

What is 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 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.
How severe is CVE-2020-13675?: CVE-2020-13675 has a CVSS 3.x base score of 9.8, rated critical severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.
Is CVE-2020-13675 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (65th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2020-13675?: CVE-2020-13675 affects Drupal. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2020-13675?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its critical severity, prioritise patching exposed systems.
When was CVE-2020-13675 published?: CVE-2020-13675 was published on 2022-02-11 and last updated on 2026-06-17.

References

https://www.drupal.org/sa-core-2021-008

Affected products (1)

cpe:2.3:a:drupal:drupal:*:*:*:*:*:*:*:*

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