Drupal JSON:API backtrace info leak
CVE-2023-5256 Published on September 28, 2023
Drupal core - Critical - Cache poisoning - SA-CORE-2023-006
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.
Vulnerability Analysis
CVE-2023-5256 is exploitable with network access, and requires small amount of user privileges. This vulnerability is consided to have a high level of attack complexity. The potential impact of an exploit of this vulnerability is considered to be very high.
Weakness Type
What is an Information Disclosure Vulnerability?
The product exposes sensitive information to an actor that is not explicitly authorized to have access to that information.
CVE-2023-5256 has been classified to as an Information Disclosure vulnerability or weakness.
Products Associated with CVE-2023-5256
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Affected Versions
Drupal Core:- Version 10.1, <= 10.1.4 is affected.
- Version 10.0, <= 10.0.11 is affected.
- Version 9.5, <= 9.5.11 is affected.
- Version 10.1 and below 10.1.4 is affected.
- Version 10.0 and below 10.0.11 is affected.
- Version 9.5 and below 9.5.11 is affected.
Exploit Probability
EPSS (Exploit Prediction Scoring System) scores estimate the probability that a vulnerability will be exploited in the wild within the next 30 days. The percentile shows you how this score compares to all other vulnerabilities.