How severe is CVE-2011-4899?

CVE-2011-4899 has a CVSS 2.0 base score of 7.5, rated high severity.

Is CVE-2011-4899 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 9% (95th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2011-4899?

CVE-2011-4899 primarily affects Wordpress. In total, 73 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.

How do I fix CVE-2011-4899?

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-2011-4899 published?

CVE-2011-4899 was published on 2012-01-30 and last updated on 2026-06-16.

CVE-2011-4899

CVE-2011-4899 is a high-severity vulnerability in Wordpress 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.

Key facts

Severity: High (CVSS 2.0 base score 7.5)
EPSS exploit prediction: 9% (95th percentile)
Actively exploited: Not listed in CISA KEV
Affected product: Wordpress
Published: 2012-01-30
Last modified: 2026-06-16

Description

wp-admin/setup-config.php in the installation component in WordPress 3.3.1 and earlier does not ensure that the specified MySQL database service is appropriate, which allows remote attackers to configure an arbitrary database via the dbhost and dbname parameters, and subsequently conduct static code injection and cross-site scripting (XSS) attacks via (1) an HTTP request or (2) a MySQL query. NOTE: the vendor disputes the significance of this issue; however, remote code execution makes the issue important in many realistic environments

Frequently asked questions

What is CVE-2011-4899?: wp-admin/setup-config.php in the installation component in WordPress 3.3.1 and earlier does not ensure that the specified MySQL database service is appropriate, which allows remote attackers to configure an arbitrary database via the dbhost and dbname parameters, and subsequently conduct static code injection and cross-site scripting (XSS) attacks via (1) an HTTP request or (2) a MySQL query. NOTE: the vendor disputes the significance of this issue; however, remote code execution makes the issue important in many realistic environments
How severe is CVE-2011-4899?: CVE-2011-4899 has a CVSS 2.0 base score of 7.5, rated high severity.
Is CVE-2011-4899 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 9% (95th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2011-4899?: CVE-2011-4899 primarily affects Wordpress. In total, 73 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
How do I fix CVE-2011-4899?: 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-2011-4899 published?: CVE-2011-4899 was published on 2012-01-30 and last updated on 2026-06-16.

References

Affected products (73)

cpe:2.3:a:wordpress:wordpress:*:*:*:*:*:*:*:*
cpe:2.3:a:wordpress:wordpress:0.7:*:*:*:*:*:*:*
cpe:2.3:a:wordpress:wordpress:0.71:*:*:*:*:*:*:*
cpe:2.3:a:wordpress:wordpress:0.72:*:*:*:*:*:*:*
cpe:2.3:a:wordpress:wordpress:0.711:*:*:*:*:*:*:*
cpe:2.3:a:wordpress:wordpress:1.0:*:*:*:*:*:*:*
cpe:2.3:a:wordpress:wordpress:1.0.1:*:*:*:*:*:*:*
cpe:2.3:a:wordpress:wordpress:1.0.2:*:*:*:*:*:*:*
cpe:2.3:a:wordpress:wordpress:1.2:*:*:*:*:*:*:*
cpe:2.3:a:wordpress:wordpress:1.2.1:*:*:*:*:*:*:*
cpe:2.3:a:wordpress:wordpress:1.2.2:*:*:*:*:*:*:*
cpe:2.3:a:wordpress:wordpress:1.5:*:*:*:*:*:*:*
cpe:2.3:a:wordpress:wordpress:1.5.1:*:*:*:*:*:*:*
cpe:2.3:a:wordpress:wordpress:1.5.1.2:*:*:*:*:*:*:*
cpe:2.3:a:wordpress:wordpress:1.5.1.3:*:*:*:*:*:*:*
cpe:2.3:a:wordpress:wordpress:1.5.2:*:*:*:*:*:*:*
cpe:2.3:a:wordpress:wordpress:2.0:*:*:*:*:*:*:*
cpe:2.3:a:wordpress:wordpress:2.0.1:*:*:*:*:*:*:*
cpe:2.3:a:wordpress:wordpress:2.0.2:*:*:*:*:*:*:*
cpe:2.3:a:wordpress:wordpress:2.0.3:*:*:*:*:*:*:*
cpe:2.3:a:wordpress:wordpress:2.0.4:*:*:*:*:*:*:*
cpe:2.3:a:wordpress:wordpress:2.0.5:*:*:*:*:*:*:*
cpe:2.3:a:wordpress:wordpress:2.0.6:*:*:*:*:*:*:*
cpe:2.3:a:wordpress:wordpress:2.0.7:*:*:*:*:*:*:*
cpe:2.3:a:wordpress:wordpress:2.0.8:*:*:*:*:*:*:*
cpe:2.3:a:wordpress:wordpress:2.0.9:*:*:*:*:*:*:*
cpe:2.3:a:wordpress:wordpress:2.0.10:*:*:*:*:*:*:*
cpe:2.3:a:wordpress:wordpress:2.0.11:*:*:*:*:*:*:*
cpe:2.3:a:wordpress:wordpress:2.1:*:*:*:*:*:*:*
cpe:2.3:a:wordpress:wordpress:2.1.1:*:*:*:*:*:*:*
cpe:2.3:a:wordpress:wordpress:2.1.2:*:*:*:*:*:*:*
cpe:2.3:a:wordpress:wordpress:2.1.3:*:*:*:*:*:*:*
cpe:2.3:a:wordpress:wordpress:2.2:*:*:*:*:*:*:*
cpe:2.3:a:wordpress:wordpress:2.2.1:*:*:*:*:*:*:*
cpe:2.3:a:wordpress:wordpress:2.2.2:*:*:*:*:*:*:*
cpe:2.3:a:wordpress:wordpress:2.2.3:*:*:*:*:*:*:*
cpe:2.3:a:wordpress:wordpress:2.3:*:*:*:*:*:*:*
cpe:2.3:a:wordpress:wordpress:2.3.1:*:*:*:*:*:*:*
cpe:2.3:a:wordpress:wordpress:2.3.2:*:*:*:*:*:*:*
cpe:2.3:a:wordpress:wordpress:2.3.3:*:*:*:*:*:*:*

More vulnerabilities in Wordpress

CVE-2012-2400 — Critical (CVSS 10.0): Unspecified vulnerability in wp-includes/js/swfobject.js in WordPress before 3.3.2 has unknown impact and attack…
CVE-2012-2399 — Critical (CVSS 10.0): Cross-site scripting (XSS) vulnerability in swfupload.swf in SWFupload 2.2.0.1 and earlier, as used in WordPress before…
CVE-2011-3125 — Critical (CVSS 10.0): Unspecified vulnerability in WordPress 3.1 before 3.1.3 and 3.2 before Beta 2 has unknown impact and attack vectors…
CVE-2011-3122 — Critical (CVSS 10.0): Unspecified vulnerability in WordPress 3.1 before 3.1.3 and 3.2 before Beta 2 has unknown impact and attack vectors…
CVE-2009-2853 — Critical (CVSS 10.0): Wordpress before 2.8.3 allows remote attackers to gain privileges via a direct request to (1) admin-footer.php, (2)…
CVE-2008-6767 — Critical (CVSS 10.0): wp-admin/upgrade.php in WordPress, probably 2.6.x, allows remote attackers to upgrade the application, and possibly…

All CVEs affecting Wordpress →