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© 2026 FAUCET Technologies LLC. All rights reserved.

CVE-2026-6735

32
FAUCET Score

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.

First published: May 10, 2026Last modified: May 11, 2026

Impacted Technologies

VendorProductVersion(s)CPE
>= 8.2.0, < 8.2.31CPE matchmatch criteria
cpe:2.3:a:php:php:*:*:*:*:*:*:*:*
>= 8.3.0, < 8.3.31CPE matchmatch criteria
cpe:2.3:a:php:php:*:*:*:*:*:*:*:*
>= 8.4.0, < 8.4.21CPE matchmatch criteria
cpe:2.3:a:php:php:*:*:*:*:*:*:*:*
>= 8.5.0, < 8.5.6CPE matchmatch criteria
cpe:2.3:a:php:php:*:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 4.0

7.3HIGH

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/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:P/AU:Y/R:X/V:X/RE:L/U:Amber

Attack Vector
NETWORK
Attack Complexity
LOW
Attack Requirements
PRESENT
Privileges Required
NONE
User Interaction
PASSIVE
VS Confidentiality
HIGH
VS Integrity
HIGH
VS Availability
NONE
SS Confidentiality
HIGH
SS Integrity
HIGH
SS Availability
NONE
Exploit Maturity
PROOF_OF_CONCEPT
CvssVersion
4.0

Exploit Intelligence

EPSS Score
0.21%
Probability of exploitation in next 30 days
EPSS Percentile
11.4%
Percentile rank of EPSS score among Peer Group
As of 2026-07-27
Model: v2026.06.15
This CVE's current EPSS score of 0.0021 is in the 11th percentile among its peer group of 26,234 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.0 Reddit, 0.1 Bluesky, 0.0 Mastodon, and 0.1 GitHub mentions.

Media Mentions

The average CVE in this peer group has 0.1 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.

Remediation

Patch Available

Vendor Patches (5)

ubuntupatch availablevia ubuntu_usn
Product: php8.1 (jammy)Fixed in: 8.1.2-1ubuntu2.24
ubuntupatch availablevia ubuntu_usn
Product: php8.3 (noble)Fixed in: 8.3.6-0ubuntu0.24.04.9
ubuntupatch availablevia ubuntu_usn
Product: php8.4 (questing)Fixed in: 8.4.11-1ubuntu1.2
ubuntupatch availablevia ubuntu_usn
Product: php8.5 (resolute)Fixed in: 8.5.4-0ubuntu1.1
github_advisoryvendor investigatingvia nvd_reference
View patch

Vendor Advisories (2)

ubuntuUSN-8336-1

PHP vulnerabilities

May 28, 2026
microsoft2026-May/CVE-2026-6735Important

XSS within PHP-FPM status endpoint

May 7, 2026

References

github.com / php/php-src/security/advisories/GHSA-7qg2-v9fj-4mwv
ExploitVendor Advisory