Spoofing attack in SVG Sanitizer - #VU146564
Published: September 1, 2026
Vulnerability identifier: #VU146564
CSH Severity: Low
CVSS v4: 4.8 [CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:A/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N]
CVE-ID: N/A
CWE-ID: CWE-451
Exploitation vector: Remote access
Exploit availability:
No public exploit available
Vulnerability details
The vulnerability allows a remote user to cause the victim to download attacker-controlled files.
The vulnerability exists due to improper neutralization of dangerous attributes in <a download> handling in the SVG Sanitizer when processing sanitized SVG content containing allowed download attributes and safe-listed data URIs. A remote user can craft an SVG link with an attacker-chosen filename and content source to cause the victim to download attacker-controlled files.
User interaction is required to open the downloaded file.
Affected software
SVG Sanitizer
Remediation
Install security update from vendor's website.
SVG Sanitizer - update to 1.0.0