CVE-2011-5266

Name: CVE-2011-5266
Creator: NVD / NIST
Published: 2020-01-08T23:15:10.283+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

CRITICALCVSS 9.8/10EPSS 1.18%

Last modified Jun 16, 2026

CVE-2011-5266 is a critical-severity vulnerability rated 9.8/10 on the CVSS scale. Imperva SecureSphere Web Application Firewall (WAF) before 12-august-2010 allows SQL injection filter bypass.. EPSS estimates a 1.18% chance of exploitation in the next 30 days.

Description

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

Metrics

CVSS 3.1

9.8/10

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

EPSS Probability

1.18%

63.8th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

CWE-89

Affected Software

Vendor	Product	Versions
Imperva	Securesphere Web Application Firewall	< 2010-08-12

References

http://seclists.org/fulldisclosure/2011/May/163Exploit, Mailing List, Third Party Advisory
http://seclists.org/fulldisclosure/2011/May/163Exploit, Mailing List, Third Party Advisory

Timeline

Published: Jan 8, 2020
Last Modified: Jun 16, 2026
Status: Modified

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 score of 9.8/10 (CRITICAL severity). The EPSS model estimates a 1.18% probability of exploitation in the next 30 days.

How do I fix CVE-2011-5266?

Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2011-5266?

Run a free Strix scan to check your systems for this vulnerability.

Scan your code now

Source: NVD / NIST