CVE-2011-5266

CVE-2011-5266 is a critical-severity vulnerability in Imperva Securesphere Web Application Firewall with a CVSS 3.x base score of 9.8. 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

Description

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

Frequently asked questions

What is CVE-2011-5266?
Imperva SecureSphere Web Application Firewall (WAF) before 12-august-2010 allows SQL injection filter bypass.
How severe is CVE-2011-5266?
CVE-2011-5266 has a CVSS 3.x base score of 9.8, rated critical severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.
Is CVE-2011-5266 being actively exploited?
It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (64th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2011-5266?
CVE-2011-5266 affects Imperva Securesphere Web Application Firewall. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2011-5266?
Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its critical severity, prioritise patching exposed systems.
When was CVE-2011-5266 published?
CVE-2011-5266 was published on 2020-01-08 and last updated on 2026-06-16.

References

Affected products (1)

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