Skip to main content
CRITICAL

CVE-2011-5266

CVSS v3

9.8

CRITICAL

EPSS Score

1.2 %

exploit probability, as of 2026-09-25

CISA KEV

No

known exploited

Exploitation

—

SSVC status

Description

Imperva SecureSphere Web Application Firewall (WAF) before 12-august-2010 allows SQL injection filter bypass.

Technical details

Published
2020-01-08

Frequently asked questions

What is CVE-2011-5266?

Imperva SecureSphere Web Application Firewall (WAF) before 12-august-2010 allows SQL injection filter bypass.

Is CVE-2011-5266 actively exploited?

Active exploitation of CVE-2011-5266 has not been confirmed. Its EPSS score was 1.2% on 2026-09-25, the estimated probability of exploitation in the next 30 days.

What is the CVSS score for CVE-2011-5266?

CVE-2011-5266 has a CVSS v3 base score of 9.8 (CRITICAL severity).

Is CVE-2011-5266 affecting your environment?

Use isMalicious to check if any of your IPs or domains are associated with this vulnerability's IOCs.

No credit card required · 500 free checks/month · Free API key

Other 2011 vulnerabilities worth triaging

Ranked by exploit probability (EPSS).