CVE-2026-6735 HIGH

CVE-2026-6735: XSS within PHP-FPM status endpoint

Vendor Php Group
Product PHP
Weakness CWE-79 · XSS
Published May 10, 2026
Last update May 11, 2026
View on NVD All CVEs

CVSS base score

7.3/10
Attack vector Network
Attack complexity Low
Privileges required None
User interaction —
Confidentiality —
Integrity —

CVSS vector

CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:P/VC:H/VI:H/VA:N/SC:H/SI:H/SA:N/E:P/S:P/AU:Y/RE:L/U:Amber

What the vulnerability does

Description

In PHP versions 8.2.* before 8.2.31, 8.3.* before 8.3.31, 8.4.* before 8.4.21, 8.5.* before 8.5.6, due to improper sanitation of user data, it allows an attacker to compose an URL, which will cause the target to execute arbitrary JavaScript code (XSS) on the target's machine when the target is viewing the PHP-FPM status page.

Key dates

Disclosure timeline

May 10, 2026 CVE published
May 11, 2026 Record updated