EUVD-2026-77454
GHSA-wc79-h887-58h9
Severity by source
CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X
Network-reachable but requires authenticated customer account (PR:L) and non-default feature flag; only low confidentiality impact (email alias strings, no credentials).
Primary rating from Vendor (vulncheck).
CVSS VectorVendor: vulncheck
Lifecycle Timeline
3DescriptionCVE.org
Froxlor before 2.3.7 fails to properly scope sender alias lookups to the current customer in customer_email.php. Authenticated attackers can enumerate global sender alias IDs and read other customers' allowed sender values by supplying arbitrary senderid parameters in delete confirmation requests.
AnalysisAI
Cross-tenant sender alias disclosure in Froxlor before 2.3.7 allows any authenticated customer to enumerate and read other customers' allowed sender alias values via an IDOR flaw in the delete-confirmation flow of customer_email.php. The query fetching allowed_sender uses only the global auto-increment senderid parameter without scoping it to the requesting customer, making all sender alias records on the instance accessible to any authenticated tenant. …
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Attack ChainAIDerived
Hypothetical attack flow derived from CVE metadata
Vulnerability AssessmentAI
| Exploitation | Exploitation requires: (1) an authenticated Froxlor customer account on the target instance - unauthenticated access is not possible; (2) the `mail.enable_allow_sender` configuration option must be explicitly enabled by the operator - it is not enabled in default installations; (3) at least one victim customer must have a sender alias defined, providing an enumerable `senderid`. … Additional conditions and limiting factors are described in the full assessment. |
| Risk Assessment | The CVSS 4.0 vector (AV:N/AC:L/AT:N/PR:L/UI:N/VC:L) and resulting score of 5.3 accurately represent realistic risk: the vulnerability requires authentication (PR:L) and is gated behind a non-default feature flag, and the leaked data - allowed sender alias email addresses - is low-sensitivity customer metadata rather than credentials or billing information. … Full risk analysis with EPSS, KEV, and SSVC signal comparison available after sign-in. |
| Exploit Scenario | Full exploit scenario with step-by-step reproduction available after sign-in. |
| Remediation | Upgrade to Froxlor 2.3.7 or later, which scopes the `senderid` lookup to the current customer's records, eliminating the IDOR. … Detailed patch versions, workarounds, and compensating controls in full report. |
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Same weakness CWE-200 – Information Exposure
View allSame technique Information Disclosure
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External POC / Exploit Code
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