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EllisLab CodeIgniter XSS Filter Bypass Vulnerability

Vulnerability

A vulnerability in EllisLab CodeIgniter version 2.1.2 allows remote attackers to bypass the xss_clean() filter, potentially leading to cross-site scripting (XSS) attacks.

Impact

Exploitation of this vulnerability allows for cross-site scripting attacks, where an attacker can inject malicious scripts that are executed in the context of the user's browser.

Added: May 15, 2026, 12:06 PM
Updated: May 15, 2026, 12:06 PM

Vulnerability Rating

Custom Algorithm
spread
5.2
impact
1.7
exploitability
6.8
remediation
0.0
relevance
0.0
threat
0.0
urgency
2.9
incentive
0.0

Our algorithm analyzes dozens of metrics to generate these 8 key vulnerability categories, which are then combined to calculate the overall risk score.