9.8

CVE-2020-13675: drupal core Improper Access Control

CVSS: 9.8v3.1CriticalModified
AliasesUBUNTU-CVE-2020-13675
Published 11-02-2022Last modified 04-08-2024
Open JSON

Vulnerability summary

CVE-2020-13675 is a critical (CVSS 9.8) Improper Access Control vulnerability in drupal core. EPSS estimates a 1.39% chance of exploitation in the next 30 days, higher than 71.8% of scored vulnerabilities.

Overall risk
70/100
0100
High · default modelHow is this calculated?
CVSS score
9.8/10
010
Critical · v3.1 (NVD)
EPSS score
1.39%
0%100%
Low · +0.15 pp in 30 days
KEVNot listedIn no KEV catalog
RansomwareNone recordedNo known use recorded
Public exploits0No public exploits recorded

Timeline

  1. 11-02-2022
    PublishedVulnerability first disclosed.
  2. 04-08-2024
    Last modifiedVulnerability information updated.

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.

CVSS metrics

3 scores · 2 sources · 2 versions

EPSS trend

Probability

1.39%

Chance of exploitation in the next 30 days

Percentile

72%

Versus all other CVEs

30-day change

+0.15 pp

From 1.24% on 20-09-2026

20-09-202620-10-2026
EPSS score
1.39%

Known exploited

Compare KEV catalogs

Not in any of the 3 tracked catalogs.

Public exploits

0 found

No public exploits indexed.

Weaknesses

CWE · root cause

Affected systems

Drupal2 products
  • core≥ 9.2.x, < 9.2.6 | ≥ 9.1.x, < 9.1.13 | ≥ 8.9.x, < 8.9.19
  • drupal≥ 8.0.0, < 8.9.19 | ≥ 9.1.0, < 9.1.13 | ≥ 9.2.0, < 9.2.6
Ubuntu1 product
  • drupal7All versions (No fix recorded)

2 vendors · 3 products

References

3 links