Input validation error in Slim-Psr7 - CVE-2023-30536
Published: April 29, 2025
Vulnerability identifier: #VU108058
CSH Severity: Low
CVSS v4.0: CVSS:4.0/AV:N/AC:H/AT:N/PR:N/UI:N/VC:N/VI:L/VA:N/SC:N/SI:N/SA:N/E:U/U:Clear
CVE-ID: CVE-2023-30536
CWE-ID: CWE-20
Exploitation vector: Remote access
Exploit availability:
No public exploit available
Vendor: slimphp
Affected software:
Slim-Psr7
Slim-Psr7
Detailed vulnerability description
The vulnerability allows a remote attacker to alter application's behavior.
The vulnerability exists due to insufficient validation of HTTP headers with newline characters. A remote attacker with ability to control the header names that are passed to Slilm-Psr7 can craft invalid messages, possibly causing application errors or invalid HTTP requests being sent out with an PSR-18 HTTP client.
How to mitigate CVE-2023-30536
Install updates from vendor's website.