How severe is CVE-2011-4753?

CVE-2011-4753 has a CVSS 2.0 base score of 7.5, rated high severity.

Is CVE-2011-4753 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (62nd percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2011-4753?

CVE-2011-4753 affects Parallels Parallels Plesk Small Business Panel. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2011-4753?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.

When was CVE-2011-4753 published?

CVE-2011-4753 was published on 2011-12-16 and last updated on 2026-06-16.

CVE-2011-4753

CVE-2011-4753 is a high-severity vulnerability in Parallels Parallels Plesk Small Business Panel with a CVSS 2.0 base score of 7.5. 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-89.

Key facts

Severity: High (CVSS 2.0 base score 7.5)
EPSS exploit prediction: 1% (62nd percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-89
Affected product: Parallels Parallels Plesk Small Business Panel
Published: 2011-12-16
Last modified: 2026-06-16

Description

Multiple SQL injection vulnerabilities in Parallels Plesk Small Business Panel 10.2.0 allow remote attackers to execute arbitrary SQL commands via crafted input to a PHP script, as demonstrated by domains/sitebuilder_edit.php and certain other files.

Frequently asked questions

What is CVE-2011-4753?: Multiple SQL injection vulnerabilities in Parallels Plesk Small Business Panel 10.2.0 allow remote attackers to execute arbitrary SQL commands via crafted input to a PHP script, as demonstrated by domains/sitebuilder_edit.php and certain other files.
How severe is CVE-2011-4753?: CVE-2011-4753 has a CVSS 2.0 base score of 7.5, rated high severity.
Is CVE-2011-4753 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (62nd percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2011-4753?: CVE-2011-4753 affects Parallels Parallels Plesk Small Business Panel. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2011-4753?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.
When was CVE-2011-4753 published?: CVE-2011-4753 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 →

Other CWE-89 (SQL Injection) vulnerabilities

CVE-2026-54350 — Critical (CVSS 10.0): Budibase is an open-source low-code platform. Prior to 3.39.12, an unauthenticated visitor of any published Budibase…
CVE-2026-8054 — Critical (CVSS 10.0): Improper Neutralization of Special Elements used in an SQL Command ('SQL Injection') in the Publish Audit API endpoints…
CVE-2026-42287 — Critical (CVSS 10.0): Emlog is an open source website building system. Prior to version 2.6.11, direct SQL injection in article creation and…
CVE-2026-3325 — Critical (CVSS 10.0): SQL injection (SQLi) in MegaCMS v12.0.0, specifically in the “id_territorio” parameter of the…
CVE-2025-10878 — Critical (CVSS 10.0): A SQL injection vulnerability exists in the login functionality of Fikir Odalari AdminPando 1.0.1 before 2026-01-26.…
CVE-2025-57792 — Critical (CVSS 10.0): Explorance Blue versions prior to 8.14.9 contain a SQL injection vulnerability caused by insufficient validation of…

Browse all CWE-89 (SQL Injection) vulnerabilities →