7.5

CVE-2020-13677: drupal core Improper Access Control

CVSS: 7.5v3.1HighModified
AliasesUBUNTU-CVE-2020-13677
Published 11-02-2022Last modified 04-08-2024
Open JSON

Vulnerability summary

CVE-2020-13677 is a high (CVSS 7.5) Improper Access Control vulnerability in drupal core. EPSS estimates a 1.22% chance of exploitation in the next 30 days, higher than 68.1% of scored vulnerabilities.

Overall risk
30/100
0100
Medium · default modelHow is this calculated?
CVSS score
7.5/10
010
High · v3.1 (NVD)
EPSS score
1.22%
0%100%
Low · +0.16 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

Under some circumstances, the Drupal core JSON:API module does not properly restrict access to certain content, which may result in unintended access bypass. Sites that do not have the JSON:API module enabled are not affected.

CVSS metrics

3 scores · 2 sources · 2 versions

EPSS trend

Probability

1.22%

Chance of exploitation in the next 30 days

Percentile

68%

Versus all other CVEs

30-day change

+0.16 pp

From 1.05% on 20-09-2026

20-09-202620-10-2026
EPSS score
1.22%

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