CVE-2026-6735

Publication date 10 May 2026

Last updated 5 June 2026

Ubuntu priority

Medium

Why this priority?

Cvss 3 Severity Score

6.1 · Medium

Score breakdown

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.

Read the notes from the security team

Status

Package Ubuntu Release Status
php5 26.04 LTS resolute Not in release
25.10 questing Not in release
24.04 LTS noble Not in release
22.04 LTS jammy Not in release
14.04 LTS trusty
Needs evaluation
php7.0 26.04 LTS resolute Not in release
25.10 questing Not in release
24.04 LTS noble Not in release
22.04 LTS jammy Not in release
16.04 LTS xenial
Needs evaluation
php7.2 26.04 LTS resolute Not in release
25.10 questing Not in release
24.04 LTS noble Not in release
22.04 LTS jammy Not in release
18.04 LTS bionic
Needs evaluation
php7.4 26.04 LTS resolute Not in release
25.10 questing Not in release
24.04 LTS noble Not in release
22.04 LTS jammy Not in release
20.04 LTS focal
Needs evaluation
php8.1 26.04 LTS resolute Not in release
25.10 questing Not in release
24.04 LTS noble Not in release
22.04 LTS jammy
Fixed 8.1.2-1ubuntu2.24
php8.3 26.04 LTS resolute Not in release
25.10 questing Not in release
24.04 LTS noble
Fixed 8.3.6-0ubuntu0.24.04.9
22.04 LTS jammy Not in release
php8.4 26.04 LTS resolute Not in release
25.10 questing
Fixed 8.4.11-1ubuntu1.2
24.04 LTS noble Not in release
22.04 LTS jammy Not in release
php8.5 26.04 LTS resolute
Fixed 8.5.4-0ubuntu1.1
25.10 questing Not in release
24.04 LTS noble Not in release
22.04 LTS jammy Not in release

Notes

sbeattie

PEAR issues should go against php-pear as of xenial

Patch details

For informational purposes only. We recommend not to cherry-pick updates. How can I get the fixes?

Package Patch details
php8.5

Severity score breakdown

Parameter Value
Base score 6.1 · Medium
Attack vector Network
Attack complexity Low
Privileges required None
User interaction Required
Scope Changed
Confidentiality Low
Integrity impact Low
Availability impact None
Vector CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N

References

Related Ubuntu Security Notices (USN)

Other references

Access our resources on patching vulnerabilities