How severe is CVE-2011-4758?

CVE-2011-4758 has a CVSS 2.0 base score of 5.0, rated medium severity.

Is CVE-2011-4758 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (63rd percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2011-4758?

CVE-2011-4758 affects Parallels Parallels Plesk Small Business Panel. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2011-4758?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.

When was CVE-2011-4758 published?

CVE-2011-4758 was published on 2011-12-16 and last updated on 2026-06-16.

CVE-2011-4758

CVE-2011-4758 is a medium-severity vulnerability in Parallels Parallels Plesk Small Business Panel with a CVSS 2.0 base score of 5.0. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-310.

Key facts

Severity: Medium (CVSS 2.0 base score 5.0)
EPSS exploit prediction: 1% (63rd percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-310
Affected product: Parallels Parallels Plesk Small Business Panel
Published: 2011-12-16
Last modified: 2026-06-16

Description

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.

Frequently asked questions

What is CVE-2011-4758?: 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.
How severe is CVE-2011-4758?: CVE-2011-4758 has a CVSS 2.0 base score of 5.0, rated medium severity.
Is CVE-2011-4758 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (63rd percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2011-4758?: CVE-2011-4758 affects Parallels Parallels Plesk Small Business Panel. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2011-4758?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
When was CVE-2011-4758 published?: CVE-2011-4758 was published on 2011-12-16 and last updated on 2026-06-16.

References

Affected products (1)

cpe:2.3:a:parallels:parallels_plesk_small_business_panel:10.2.0:*:*:*:*:*:*:*

More vulnerabilities in Parallels Parallels Plesk Small Business Panel

CVE-2011-4768 — Critical (CVSS 10.0): The Site Editor (aka SiteBuilder) feature in Parallels Plesk Small Business Panel 10.2.0 omits the Content-Type…
CVE-2011-4762 — Critical (CVSS 10.0): Parallels Plesk Small Business Panel 10.2.0 sends incorrect Content-Type headers for certain resources, which might…
CVE-2011-4761 — Critical (CVSS 10.0): Parallels Plesk Small Business Panel 10.2.0 omits the Content-Type header's charset parameter for certain resources,…
CVE-2011-4757 — Critical (CVSS 10.0): Parallels Plesk Small Business Panel 10.2.0 generates a password form field without disabling the autocomplete feature,…
CVE-2011-4755 — Critical (CVSS 10.0): Parallels Plesk Small Business Panel 10.2.0 does not properly validate string data that is intended for storage in an…
CVE-2011-4763 — High (CVSS 7.5): Multiple SQL injection vulnerabilities in the Site Editor (aka SiteBuilder) feature in Parallels Plesk Small Business…

All CVEs affecting Parallels Parallels Plesk Small Business Panel →

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