Summary
Appsmith: Configuration-dependent origin validation bypass in password reset and email verification link generation
Impact
This is a trust-boundary failure in token-bearing email authentication flows.
Affected deployments are those where:
APPSMITH_BASE_URLis unset or blank- outbound email is enabled
- password reset and/or email verification flows are enabled
Attacker requirements are low:
- no prior authentication is required to reach the relevant endpoints
- the attacker only needs to trigger an email flow toward a target account
Security impact:
- Appsmith can generate password reset or verification emails whose clickable host is attacker-controlled
- victim interaction can expose security-sensitive token material
- this can plausibly result in account takeover
- at minimum, it enables trusted-email abuse and phishing through the application itself
GHSA-J9GF-VW2F-9HRW has a CVSS score of 8.1 (High). The vector is network-reachable, no privileges required, and user interaction required. A CVSS score reflects the worst-case severity of the vulnerability, not your specific exposure. Whether this affects your application depends on whether the vulnerable code is present and reachable in your environment. A fixed version is available (2.0); upgrading removes the vulnerable code path.
Affected versions
Security releases
Kodem intelligence
Severity tells you how bad this could be in the worst case. It does not tell you whether you are exposed. Exploitability and impact are functions of runtime truth: whether the vulnerable code is present, reachable, and actually executes in your application. A vulnerable package can sit in your dependency tree and never run.
Kodem, an Intelligent Application Security platform, uses runtime intelligence to reveal which vulnerabilities actually execute in production, so teams prioritize the ones that genuinely matter. Kodem's runtime-powered SCA identifies whether this CVE is reachable in your applications.
Remediation advice
Kodem Kai can prioritize this vulnerability in your dependency tree and generate a fix recommendation.
Frequently Asked Questions
- What is GHSA-J9GF-VW2F-9HRW? GHSA-J9GF-VW2F-9HRW is a high-severity security vulnerability in com.appsmith:server (maven), affecting versions < 2.0. It is fixed in 2.0.
- How severe is GHSA-J9GF-VW2F-9HRW? GHSA-J9GF-VW2F-9HRW has a CVSS score of 8.1 (High). This score reflects the worst-case severity of the vulnerability, not your specific exposure. Whether it represents real risk in your environment depends on whether the vulnerable code is present and reachable.
- Which versions of com.appsmith:server are affected by GHSA-J9GF-VW2F-9HRW? com.appsmith:server (maven) versions < 2.0 is affected.
- Is there a fix for GHSA-J9GF-VW2F-9HRW? Yes. GHSA-J9GF-VW2F-9HRW is fixed in 2.0. Upgrade to this version or later.
- Is GHSA-J9GF-VW2F-9HRW exploitable, and should I be worried? Whether GHSA-J9GF-VW2F-9HRW is exploitable in your environment depends on whether the vulnerable code is present and reachable. A CVSS score is a worst-case rating; it does not account for your specific deployment, configuration, or usage patterns. Kodem, an Intelligent Application Security platform, uses runtime intelligence to show which vulnerabilities actually execute in production, so you can focus on the ones that represent real risk. Get a demo
- What actually determines whether GHSA-J9GF-VW2F-9HRW is exploitable, and how bad it is? Exploitability and impact are not fixed properties of a CVE. They depend on runtime truth: whether the vulnerable code is present, reachable, and actually executes in your application. A high CVSS score on a dependency that never runs is not the same as real risk. Kodem, an Intelligent Application Security platform, uses runtime intelligence to reveal which vulnerabilities actually execute in production, so teams prioritize the ones that genuinely matter.
- How do I fix GHSA-J9GF-VW2F-9HRW? Upgrade
com.appsmith:serverto 2.0 or later.