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.
CVE-2011-4736
NONECVSS 0.0
0.0
EchelonGraph verdictMonitorLow exploitation likelihood right now — keep watching.
- No confirmed exploitation signals yet
CISA-KEV: Not listedEPSS: 1%CVSS: —Exploit: NoneExposed: 0
No vendor fix yet — apply a workaround or compensating control (WAF / firewall / segmentation) and watch for a patch.
- CVSS v3
- —
- EG Score
- 0.0(none)
- EPSS
- 63.3%
- KEV
- Not listed
Published
December 16, 2011
Last Modified
April 29, 2026
References (4)
- cve@mitrehttp://xss.cx/examples/plesk-reports/xss-reflected-cross-site-scripting-cwe79-capec86-plesk-parallels-control-panel-version-20110407.20.html
- cve@mitrehttps://exchange.xforce.ibmcloud.com/vulnerabilities/72323
- af854a3a-2127-422b-91ae-364da2661108http://xss.cx/examples/plesk-reports/xss-reflected-cross-site-scripting-cwe79-capec86-plesk-parallels-control-panel-version-20110407.20.html
- af854a3a-2127-422b-91ae-364da2661108https://exchange.xforce.ibmcloud.com/vulnerabilities/72323
Data Freshness Timeline
(refreshed 9× in last 7d / 43× in last 30d)
Each row is a source pipeline that fetched or updated this CVE on that date, with what changed. For example, "NVD update" means NVD published or revised its analysis for this CVE; "MITRE cvelistV5" means we ingested or refreshed it from the CNA feed. Most recent first.
- 2026-07-06 16:23 UTCEPSS rescore
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Frequently asked(4)
What is CVE-2011-4736?
CVE-2011-4736 is a none vulnerability published on December 16, 2011. 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.
When was CVE-2011-4736 disclosed?
CVE-2011-4736 was first published in the National Vulnerability Database on December 16, 2011, with the most recent update on April 29, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2011-4736 actively exploited?
CVE-2011-4736 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 63.3% percentile likelihood of exploitation in the next 30 days — higher percentiles indicate greater predicted risk.
How do I remediate CVE-2011-4736?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2011-4736, EchelonGraph cross-links them in the Vendor Advisories panel below — those typically contain the canonical remediation steps, fixed version numbers, and any vendor-specific mitigations.
Dependency Blast Radius
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