Summary
Froxlor: Authenticated customers can read other customers' allowed sender aliases
Impact
An authenticated customer can enumerate global sender alias IDs and read other customers' allowed sender values. This is a cross-tenant information disclosure. It does not let the attacker delete the foreign alias because the delete action revalidates ownership.
GHSA-MR9H-45P9-FG8H has a CVSS score of 4.3 (Medium). The vector is network-reachable, low privileges required, and no user interaction. 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 (2.3.7); 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.
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Scope the sender alias lookup to the current customer and mailbox before rendering the confirmation page. The confirmation flow should fetch the sender alias through the same ownership checks used by EmailSender::delete().
Found by aisafe.io
Frequently Asked Questions
- What is GHSA-MR9H-45P9-FG8H? GHSA-MR9H-45P9-FG8H is a medium-severity security vulnerability in froxlor/froxlor (composer), affecting versions <= 2.3.6. It is fixed in 2.3.7.
- How severe is GHSA-MR9H-45P9-FG8H? GHSA-MR9H-45P9-FG8H has a CVSS score of 4.3 (Medium). 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 froxlor/froxlor are affected by GHSA-MR9H-45P9-FG8H? froxlor/froxlor (composer) versions <= 2.3.6 is affected.
- Is there a fix for GHSA-MR9H-45P9-FG8H? Yes. GHSA-MR9H-45P9-FG8H is fixed in 2.3.7. Upgrade to this version or later.
- Is GHSA-MR9H-45P9-FG8H exploitable, and should I be worried? Whether GHSA-MR9H-45P9-FG8H 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-MR9H-45P9-FG8H 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-MR9H-45P9-FG8H? Upgrade
froxlor/froxlorto 2.3.7 or later.