How severe is CVE-2011-4736?

CVE-2011-4736 has a CVSS 2.0 base score of 5.0, rated medium severity.

Is CVE-2011-4736 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-2011-4736?

CVE-2011-4736 affects Parallels Parallels Plesk Panel. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2011-4736?

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

When was CVE-2011-4736 published?

CVE-2011-4736 was published on 2011-12-16 and last updated on 2026-06-16.

CVE-2011-4736

CVE-2011-4736 is a medium-severity vulnerability in Parallels Parallels Plesk 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 Panel
Published: 2011-12-16
Last modified: 2026-06-16

Description

The Control Panel in Parallels Plesk Panel 10.2.0 build 20110407.20 receives cleartext password input over HTTP, which allows remote attackers to obtain sensitive information by sniffing the network, as demonstrated by forms in login_up.php3 and certain other files.

Frequently asked questions

What is CVE-2011-4736?: The Control Panel in Parallels Plesk Panel 10.2.0 build 20110407.20 receives cleartext password input over HTTP, which allows remote attackers to obtain sensitive information by sniffing the network, as demonstrated by forms in login_up.php3 and certain other files.
How severe is CVE-2011-4736?: CVE-2011-4736 has a CVSS 2.0 base score of 5.0, rated medium severity.
Is CVE-2011-4736 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-2011-4736?: CVE-2011-4736 affects Parallels Parallels Plesk Panel. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2011-4736?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
When was CVE-2011-4736 published?: CVE-2011-4736 was published on 2011-12-16 and last updated on 2026-06-16.

References

Affected products (1)

cpe:2.3:a:parallels:parallels_plesk_panel:10.2.0_build20110407.20:*:*:*:*:*:*:*

More vulnerabilities in Parallels Parallels Plesk Panel

CVE-2011-4749 — Critical (CVSS 10.0): The billing system for Parallels Plesk Panel 10.3.1_build1013110726.09 generates a password form field without…
CVE-2011-4744 — Critical (CVSS 10.0): The Control Panel in Parallels Plesk Panel 10.2.0 build 20110407.20 sends incorrect Content-Type headers for certain…
CVE-2011-4743 — Critical (CVSS 10.0): The Control Panel in Parallels Plesk Panel 10.2.0 build 20110407.20 omits the Content-Type header's charset parameter…
CVE-2011-4739 — Critical (CVSS 10.0): The Control Panel in Parallels Plesk Panel 10.2.0 build 20110407.20 generates a password form field without disabling…
CVE-2011-4733 — Critical (CVSS 10.0): The Server Administration Panel in Parallels Plesk Panel 10.2.0_build1011110331.18 sends incorrect Content-Type headers…
CVE-2011-4732 — Critical (CVSS 10.0): The Server Administration Panel in Parallels Plesk Panel 10.2.0_build1011110331.18 omits the Content-Type header's…

All CVEs affecting Parallels Parallels Plesk Panel →

Other CWE-310 (Cryptographic Issues) vulnerabilities

CVE-2014-7878 — Critical (CVSS 10.0): The Application Lifecycle Service (ALS) in HP Helion Cloud Development Platform 1.0, when a virtual machine is derived…
CVE-2013-3712 — Critical (CVSS 10.0): SUSE Studio Onsite 1.3.x before 1.3.6 and SUSE Studio Extension for System z 1.3 uses "static" secret tokens, which has…
CVE-2013-6952 — Critical (CVSS 10.0): The Belkin WeMo Home Automation firmware before 3949 has a hardcoded GPG key, which makes it easier for remote…
CVE-2013-6838 — Critical (CVSS 10.0): An unspecified Enghouse Interactive Professional Services "addon product" in Enghouse Interactive IVR Pro (VIP2000)…
CVE-2013-0137 — Critical (CVSS 10.0): The default configuration of the Digital Alert Systems DASDEC EAS device before 2.0-2 and the Monroe Electronics R189…
CVE-2011-5123 — Critical (CVSS 10.0): The Antivirus component in Comodo Internet Security before 5.3.175888.1227 does not check whether X.509 certificates in…

Browse all CWE-310 (Cryptographic Issues) vulnerabilities →