Is CVE-2011-4849 being actively exploited?

CVE-2011-4849 is not currently listed in the CISA Known Exploited Vulnerabilities (KEV) catalog.

What is the CVSS score for CVE-2011-4849?

CVE-2011-4849 has a CVSS 2.0 base score of 4.3 (MEDIUM).

CVE-2011-4849

MEDIUM · CVSS 4.3EPSS 1.0%EU EUVD

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.

Key facts

CVSS score: 4.3 (v2.0)
Severity: MEDIUM
CVSS vector: AV:N/AC:M/Au:N/C:P/I:N/A:N
Weakness (CWE): CWE-200
EPSS score: 1.0% (62th percentile)
In CISA KEV: No
In EU EUVD: Yes (EUVD-2011-4767)
Published: December 16, 2011
NVD last modified: June 16, 2026
Status: Modified

EU Vulnerability Database (EUVD)

This vulnerability is also tracked by ENISA as EUVD-2011-4767 in the EU Vulnerability Database. Last updated in EUVD on August 7, 2024.

View on the EU Vulnerability Database

Affected products

microsoft / windows 2003 server
microsoft / windows server 2008
parallels / parallels plesk panel

References

Last updated September 17, 2026 · Source: NVD, CISA KEV, FIRST.org EPSS

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