The Control Panel in Parallels Plesk Panel 10.4.4_build20111103.18 does not set the secure flag for a cookie in an https session, which makes it easier for remote attackers to capture this cookie by intercepting its transmission within an http session, as demonstrated by cookies used by help.php and certain other files.
Conclusion & alert: CVE-2011-4849 is rated Low Risk (38.9/100): CVSS Medium severity, with medium exploitation likelihood (EPSS 1.05%). 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 | 0.30% | 1.05% | +0.75% |
| 2 | 2023-03-07 | 1.05% | 0.30% | -0.75% |
| 3 | 2022-02-04 | — | 1.05% | — |
Full EPSS history (3 records total)
CVSS metrics for this CVE.
| Base score | Version | Severity | Vector | Exploitability | Impact | Score source |
|---|---|---|---|---|---|---|
| 4.3 | 2.0 | MEDIUM |
|
8.6 | 2.9 | [email protected] |
| Vendor | Product | Version | Raw CPE |
|---|---|---|---|
| parallels | parallels_plesk_panel | 10.4.4_build20111103.18 | cpe:2.3:a:parallels:parallels_plesk_panel:10.4.4_build20111103.18:*:*:*:*:*:*:* |