Vulnerability details
CVE-2026-6735
PHP Group PHP
XSS within PHP-FPM status endpoint
CVSS 4.0
7.3High
Official 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.
CVSS scores
| Score | Version | Source | Vector |
|---|---|---|---|
| 7.3High | 4.0 | CVEProject cvelistV5 (CNA) (php) | 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 |
Affected products
| Vendor | Product | Versions | Source |
|---|---|---|---|
| PHP Group | PHP | 8.2.* ≤ v < 8.2.31 | CVEProject cvelistV5 (CNA) |
| PHP Group | PHP | 8.3.* ≤ v < 8.3.31 | CVEProject cvelistV5 (CNA) |
| PHP Group | PHP | 8.4.* ≤ v < 8.4.21 | CVEProject cvelistV5 (CNA) |
| PHP Group | PHP | 8.5.* ≤ v < 8.5.6 | CVEProject cvelistV5 (CNA) |
References and advisories
1
Kolun on Telegram @kolunsec
Exploited CVEs, key news and a daily digest
Alerts for this product's next CVEsFollow the product to get new vulnerabilities on Telegram.
Details
- Published
- 2026-05-10
- Last updated
- 2026-05-11
- State
- Published
- Assigner (CNA)
- php
Exploit prediction (EPSS)
0.19%
Probability of exploitation in 30 days
9%
Percentile (among all CVEs)
SSVC assessment (CISA)
- Automatable
- No
- Exploitation
- None
- Technical impact
- Partial
Weaknesses (CWE)
- CWE-79Improper neutralization of input during web page generation ('cross-site scripting')