In affected versions of Octopus Server with certain access levels it was possible to embed a Cross-Site Scripting payload on the audit page.
Conclusion & alert: CVE-2024-4456 is rated Low Risk (33.4/100): CVSS Medium severity, with low exploitation likelihood (EPSS 0.26%). 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 | 2025-11-21 | 0.38% | 0.26% | -0.12% |
| 2 | 2025-11-18 | 0.26% | 0.38% | +0.12% |
| 3 | 2025-09-27 | — | 0.26% | — |
Full EPSS history (10 records total)
CVSS metrics for this CVE.
| Base score | Version | Severity | Vector | Exploitability | Impact | Score source |
|---|---|---|---|---|---|---|
| 4.1 | 3.1 | MEDIUM |
|
0.7 | 3.4 | [email protected] |
| 5.4 | 3.1 | MEDIUM |
|
2.3 | 2.7 | [email protected] |
| Vendor | Product | Version | Raw CPE |
|---|---|---|---|
| octopus | octopus_server | >= 3.0.0, < 2023.4.8338 | cpe:2.3:a:octopus:octopus_server:*:*:*:*:*:*:*:* |
| octopus | octopus_server | >= 2024.1.437, < 2024.1.11127 | cpe:2.3:a:octopus:octopus_server:*:*:*:*:*:*:*:* |
| URL | Tags |
|---|---|
| https://advisories.octopus.com/post/2024/sa2024-04/ | Vendor Advisory |