Is CVE-2011-4758 being actively exploited?

CVE-2011-4758 is not currently listed in the CISA Known Exploited Vulnerabilities (KEV) catalog.

What is the CVSS score for CVE-2011-4758?

CVE-2011-4758 has a CVSS 2.0 base score of 5.0 (MEDIUM).

CVE-2011-4758

MEDIUM · CVSS 5.0EPSS 1.1%EU EUVD

Parallels Plesk Small Business Panel 10.2.0 receives cleartext password input over HTTP, which allows remote attackers to obtain sensitive information by sniffing the network, as demonstrated by forms in smb/auth and certain other files.

Key facts

CVSS score: 5.0 (v2.0)
Severity: MEDIUM
CVSS vector: AV:N/AC:L/Au:N/C:P/I:N/A:N
Weakness (CWE): CWE-310
EPSS score: 1.1% (65th percentile)
In CISA KEV: No
In EU EUVD: Yes (EUVD-2011-4676)
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-2011-4676 in the EU Vulnerability Database. Last updated in EUVD on August 7, 2024.

View on the EU Vulnerability Database

Affected products

parallels / parallels plesk small business panel

References

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

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