CVE-2026-6735CWE-79

XSS within PHP-FPM status endpoint

High · published May 10, 2026

CVSS v4.0
7.3
EPSS
0%
Percentile
22.5
In the wild
Unconfirmed
What it is

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.

The record
Technical detail
CVSS v4.0
7.3 · HIGH
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
EPSS
0.00309 · 22.5th percentile
Weakness
CWE-79 · Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')
Published
2026-05-10T03:27Z
EPSS history
Timeline
  • 10 MAY 03:27Z
    XSS within PHP-FPM status endpoint
    cvelistv5