Cross-site scripting in PHP - CVE-2026-6735
Published: May 10, 2026
Vulnerability identifier: #VU130909
CSH Severity: Medium
CVSSv4.0: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:A/VC:N/VI:N/VA:N/SC:L/SI:L/SA:N/E:U/U:Green
CVE-ID: CVE-2026-6735
CWE-ID: CWE-79
Exploitation vector: Remote access
Exploit availability:
No public exploit available
Vulnerable software:
PHP
PHP
Software vendor:
PHP Group
PHP Group
Description
The vulnerability allows a remote attacker to execute arbitrary script code in a user's browser.
The vulnerability exists due to cross-site scripting in the FPM status endpoint when handling requests. A remote attacker can send a specially crafted request to execute arbitrary script code in a user's browser.
Remediation
Install security update from vendor's website.