Advisories

Retool 3.88.0 XSS via /api/imageProxy SVG Proxying

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Severity
medium
Date
Affecting
  • Retool >= 0, < 3.88.0

CWE
  • CWE-79 Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')
CVSS
5.1
CVSS V4 Vector
CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:A/VC:N/VI:N/VA:N/SC:L/SI:L/SA:N
Credit
The Shadowserver Foundation
Description
Retool before 3.88.0 contains a cross-site scripting vulnerability that allows unauthenticated attackers to execute scripts by proxying malicious SVG files through /api/imageProxy. Attackers can supply an attacker-hosted SVG in the url parameter, which is served from the Retool origin without a Content Security Policy, executing JavaScript in victims' sessions. Exploitation evidence was first observed by the Shadowserver Foundation on 2024-10-15.

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