CVE-2026-121446
Published:November 03, 2026
Updated:November 04, 2026
svg-sanitizer from 0.5.0 before 1.1.0 contains an incomplete filtering vulnerability that allows attackers to bypass remote URL removal by using CSS escape sequences inside url() in SVG presentation attributes. Attackers can supply SVG files with attributes like fill containing escaped slashes that browsers resolve to remote URLs, triggering external requests and enabling data exfiltration.
Affected Packages
https://github.com/darylldoyle/svg-sanitizer.git (GITHUB):
Affected version(s) >=0.5.0 <1.1.0 || =1.0.0 <1.1.0Fix Suggestion:
Update to version 1.1.0enshrined/svg-sanitize (PHP):
Affected version(s) =1.0.0 <1.1.0 || >=0.5.0 <1.1.0Fix Suggestion:
Update to version 1.1.0Related Resources (4)
Do you need more information?
Contact UsCVSS v4
Base Score:
5.3
Attack Vector
NETWORK
Attack Complexity
LOW
Attack Requirements
NONE
Privileges Required
NONE
User Interaction
PASSIVE
Vulnerable System Confidentiality
LOW
Vulnerable System Integrity
NONE
Vulnerable System Availability
NONE
Subsequent System Confidentiality
NONE
Subsequent System Integrity
NONE
Subsequent System Availability
NONE
CVSS v3
Base Score:
4.3
Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
REQUIRED
Scope
UNCHANGED
Confidentiality
LOW
Integrity
NONE
Availability
NONE
Weakness Type (CWE)
Incomplete Filtering of Special Elements