7.5

CVE-2023-5256: drupal core

CVSS: 7.5v3.1HighModified
AliasesUBUNTU-CVE-2023-5256
Published 28-09-2023Last modified 23-09-2024
Open JSON

Vulnerability summary

CVE-2023-5256 is a high (CVSS 7.5) vulnerability in drupal core. EPSS estimates a 0.85% chance of exploitation in the next 30 days, higher than 57.5% of scored vulnerabilities.

Overall risk
30/100
0100
Medium · default modelHow is this calculated?
CVSS score
7.5/10
010
High · v3.1 (CVE.org)
EPSS score
0.85%
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. 28-09-2023
    PublishedVulnerability first disclosed.
  2. 23-09-2024
    Last modifiedVulnerability information updated.

Description

In certain scenarios, Drupal's JSON:API module will output error backtraces. With some configurations, this may cause sensitive information to be cached and made available to anonymous users, leading to privilege escalation. This vulnerability only affects sites with the JSON:API module enabled, and can be mitigated by uninstalling JSON:API. The core REST and contributed GraphQL modules are not affected.

CVSS metrics

3 scores · 3 sources · 1 version

EPSS trend

Probability

0.85%

Chance of exploitation in the next 30 days

Percentile

58%

Versus all other CVEs

30-day change

+0.16 pp

From 0.69% on 20-09-2026

20-09-202620-10-2026
EPSS score
0.85%

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≥ 10.1, ≤ 10.1.4 | ≥ 10.0, ≤ 10.0.11 | ≥ 9.5, ≤ 9.5.11
  • drupal≥ 8.7.0, < 9.5.11 | ≥ 10.0.0, < 10.0.11 | ≥ 10.1.0, < 10.1.4
Ubuntu1 product
  • drupal7All versions (No fix recorded)

2 vendors · 3 products

References

3 links