Cross Site Scripting vulnerability in Maxsite CMS v.108.7 allows a remote attacker to execute arbitrary code via the f_content parameter in the admin/page_new file.
Conclusion & alert: CVE-2023-36291 is rated Low Risk (36.2/100): CVSS Medium severity, with low exploitation likelihood (EPSS 0.43%). Mandatory action: Monitor for updates and reassess as exploit intelligence or EPSS changes.
Risk is dynamic; we continuously reassess and refresh what is shown on this page as upstream context changes.
EPSS lead: Daily EPSS estimates relative likelihood of exploitation; percentile ranks this CVE among scored vulnerabilities (higher = more severe relative rank).
| # | Date | Old EPSS score | New EPSS score | Delta (New - Old) |
|---|---|---|---|---|
| 1 | 2026-06-15 | 0.73% | 0.43% | -0.29% |
| 2 | 2026-03-28 | 0.54% | 0.73% | +0.18% |
| 3 | 2025-11-21 | — | 0.54% | — |
Full EPSS history (10 records total)
CVSS metrics for this CVE.
| Base score | Version | Severity | Vector | Exploitability | Impact | Score source |
|---|---|---|---|---|---|---|
| 6.1 | 3.1 | MEDIUM |
|
2.8 | 2.7 | [email protected] |
| Vendor | Product | Version | Raw CPE |
|---|---|---|---|
| maxsite | maxsite_cms | 108.7 | cpe:2.3:a:maxsite:maxsite_cms:108.7:*:*:*:*:*:*:* |
| URL | Tags |
|---|---|
| https://github.com/maxsite/cms/issues/500 | Issue Tracking Vendor Advisory |