CVE-2026-6735 Details
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.
A cross-site scripting (XSS) vulnerability has been identified in PHP-FPM status pages across multiple PHP versions, including 8.2.* prior to 8.2.31, 8.3.* prior to 8.3.31, 8.4.* prior to 8.4.21, and 8.5.* prior to 8.5.6. The issue arises from improper sanitization of user data, allowing attackers to craft URLs that execute arbitrary JavaScript on the viewer's machine. This could lead to cookie theft on poorly secured systems or the extraction of sensitive information from the status page itself. Notably, no authentication or access to the '/status' endpoint is required to exploit this vulnerability.
Users can upgrade to PHP versions 8.2.31, 8.3.31, 8.4.21, or 8.5.6 to address this vulnerability.
Metrics
CVSS 4.0 Severity and Vector Strings:
CVSS 3.x Severity and Vector Strings:
No data available for CVSS Version 2.0 on this CVE.
CISA-ADP
Assessed May 11, 2026References to Advisories, Solutions, and Tools
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| URL | Source(s) | Tag(s) |
|---|---|---|
| https://github.com/php/php-src/security/advisories/GHSA-7qg2-v9fj-4mwv | [email protected] | ExploitVendor Advisory |
Weakness Enumeration
| CWE-ID | CWE Name | Source |
|---|---|---|
| CWE-79 | Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') | [email protected] |
Affected Products
| Product | Versions |
|---|---|
| php php | >= 8.2.0, < 8.2.31 >= 8.3.0, < 8.3.31 >= 8.4.0, < 8.4.21 >= 8.5.0, < 8.5.6 |
CPE
Remediation
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Change History
5 change records found show changes
| Date | Action | Recorded By |
|---|---|---|
| Jul 24, 2026 | CVE Translated | [email protected] |
| Jun 17, 2026 | CVE Modified | [email protected] |
| Jun 17, 2026 | CVE Modified | CISA-ADP |
| May 12, 2026 | Initial Analysis | [email protected] |
| May 10, 2026 | New CVE Received | [email protected] |