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CVE-2011-4757· NVD / CVE Program· CNA mitre

Parallels Plesk Small Business Panel 10.2.0 generates a password form field without disabling the autocomplete feature, which makes it easie

Parallels Plesk Small Business Panel 10.2.0 generates a password form field without disabling the autocomplete feature, which makes it easier for remote attackers to bypass authentication by leveraging an unattended workstation, as demonstrated by forms in smb/auth and certain other files.

CriticalCVSS 10.0 · v2.0—No exploit No fix recorded
Published
Dec 16, 2011
Updated
Jun 16, 2026
EPSS
2.2% · 82th percentile
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Action score

41

Plan

Add it to your regular patch cycle.

CVSS
40 / 40 · 10.0 / 10
CISA KEV
0 / 30 · Not listed
EPSS
1 / 30 · 2.2%

Affected systems

VendorProduct
parallelsparallels plesk small business panel

Affected versions

NVD version ranges (for catalog products). Add the product to your stack with a version and matching uses these.

  • parallels parallels plesk small business panel10.2.0

Same product

parallels: all records

Other highest-scoring records for the same primary product.

  • CVE-2011-4768The Site Editor (aka SiteBuilder) feature in Parallels Plesk Small Business Panel 10.2.0 omits the Content-Type header's charset parameter f
    41Plan
  • CVE-2011-4762Parallels Plesk Small Business Panel 10.2.0 sends incorrect Content-Type headers for certain resources, which might allow remote attackers t
    41Plan
  • CVE-2011-4761Parallels Plesk Small Business Panel 10.2.0 omits the Content-Type header's charset parameter for certain resources, which might allow remot
    41Plan
  • CVE-2011-4755Parallels Plesk Small Business Panel 10.2.0 does not properly validate string data that is intended for storage in an XML document, which al
    41Plan
  • CVE-2011-4763Multiple SQL injection vulnerabilities in the Site Editor (aka SiteBuilder) feature in Parallels Plesk Small Business Panel 10.2.0 allow rem
    30Monitor
  • CVE-2011-4753Multiple SQL injection vulnerabilities in Parallels Plesk Small Business Panel 10.2.0 allow remote attackers to execute arbitrary SQL comman
    30Monitor

Remediation

Which version to upgrade to

Fix versions compiled from the vendor, package registries and Microsoft. Verify the vendor's note before upgrading.

No fix version is recorded for this entry. Check the references for vendor advisories.

Exploit status

No known public exploit

No public exploit has been observed yet. That doesn't mean you're safe, only that the bar is a little higher.

Research context

For pentesters and researchers: attack profile, score disagreement, timeline, patch commits, credits, variant and chain candidates, bug bounty scope. All derived from existing data; no exploit code.

Timeline

From publication to today: proof of concept, Metasploit module, CISA KEV and fix record. Dates are as reported by the sources.

No dated events beyond publication.

EPSS, last 120 days

FIRST EPSS daily score; only changes of 0.01 or more are recorded (step chart).

Patch and commit links

Commit, PR and diff links among the references. A starting point for patch-diffing and variant hunting; fixes, not exploits.

No commit or PR link among the references.

Credits

All researchers

Finders, reporters and analysts named in the CNA record. Click a name for that researcher’s other records.

No credits in the CNA record.

Variant candidates

Same product, same weakness class, within 18 months. If the patch missed the root cause, the sibling bug is here.

No nightly-computed relations.

Chain candidates

An authentication bypass and a privilege-requiring bug in the same product, published close together: combined they may become an unauthenticated path.

—

Bug bounty scope

No known public program.

Source: bounty-targets-data (public HackerOne, Bugcrowd, Intigriti, YesWeHack listings).

Technical details

Attack conditions

  • No special conditions are required; it is repeatable.

If successful

Confidentiality
C · data can be read
Integrity
C · data or configuration can be modified
Availability
C · the service can be disrupted
Attack complexity
Low
Confidentiality impact
C
Integrity impact
C
Availability impact
C

Weakness class (CWE)

CWE-255 · Credentials Management Errors

CVSS vector

AV:N/AC:L/Au:N/C:C/I:C/A:C

nvd-primary

Attack context

MITRE CAPEC attack patterns and ATT&CK techniques for this weakness class (CWE). A starting point for detection rules and threat hunting.

MITRE has no CAPEC/ATT&CK mapping for this CWE.

Noroxi analysis

No Noroxi analysis for this record yet

We don't hand-write analysis for all 385,000+ vulnerabilities; that wouldn't be honest. For notable, high-impact vulnerabilities our team writes the mechanism, detection and remediation steps.

We use this product, ask for help

Change log

No changes recorded on tracked fields yet. Score, KEV, exploit maturity and fix status changes appear here.

References

Vendor advisories and official records. Exploit/PoC links are deliberately left out.

All records