High, CVSS 8.1MavenPublished
Appsmith: Configuration-dependent origin validation bypass in password reset and email verification link generation
GHSA-j9gf-vw2f-9hrw
- Affected
- Maven com.appsmith:server < 2.0
- Fixed in
- 2.0· Vendor fix available
- Issue
- A configuration-dependent origin validation bypass was identified in Appsmith’s password reset and email verification flows on current release. Both flows derive the email-link base URL from the request Origin header. The current validation only enforces a trusted base URL when APPSMITHBASEURL is configured. If that setting is unset, the application accepts the caller-supplied origin and uses it to generate token-bearing reset and verification links. On deployments with email delivery enabled and APPSMITHBASEURL unset, this can cause Appsmith to send security-sensitive links whose clickable host is attacker-controlled, which can plausibly lead to account takeover after victim interaction. Details The current release head at commit e77639eca4974469c1e676904851ffdaedd38111 was reviewed. The relevant routes are publicly reachable in SecurityConfig.java: - POST /forgotPassword is permitted without authentication at line 209 - POST /resendEmailVerification is permitted without…
Recommended action: Upgrade to 2.0 or later, then redeploy and verify.A vendor fix does not resolve your finding until you verify it in your own systems.