Input validation error in PHP - #VU120274
Published: December 23, 2025
Vulnerability identifier: #VU120274
CSH Severity: Low
CVSS v4.0: CVSS:4.0/AV:N/AC:H/AT:P/PR:N/UI:N/VC:L/VI:L/VA:N/SC:N/SI:L/SA:N/E:U/U:Clear
CVE-ID: N/A
CWE-ID: CWE-20
Exploitation vector: Remote access
Exploit availability:
No public exploit available
Vendor: PHP Group
Affected software:
PHP
PHP
Detailed vulnerability description
The vulnerability allows a remote attacker to tamper with application workflow.
The vulnerability exists due to insufficient validation of user-supplied input in dns_get_record() and other DNS functions. A remote attacker can pass specially crafted input with a NULL byte character to the application and tamper with application;s workflow, potentially performing SSRF attack.
Remediation
Install updates from vendor's website.