How severe is CVE-2026-41232?

CVE-2026-41232 has a CVSS 3.x base score of 5.0, rated medium severity. It is exploitable over network with low attack complexity, requires low privileges and no user interaction. Impact on confidentiality is none, integrity low, and availability none.

Is CVE-2026-41232 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (14th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2026-41232?

CVE-2026-41232 affects Froxlor. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2026-41232?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.

Does CVE-2026-41232 have an EU (EUVD) identifier?

Yes. CVE-2026-41232 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2026-25186.

When was CVE-2026-41232 published?

CVE-2026-41232 was published on 2026-04-23 and last updated on 2026-06-17.

CVE-2026-41232

CVE-2026-41232 is a medium-severity vulnerability in Froxlor with a CVSS 3.x base score of 5.0. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-863.

Key facts

Severity: Medium (CVSS 3.x base score 5.0)
EPSS exploit prediction: 0% (14th percentile)
Actively exploited: Not listed in CISA KEV
EU (EUVD) id: EUVD-2026-25186
Weakness: CWE-863
Affected product: Froxlor
Published: 2026-04-23
Last modified: 2026-06-17

Description

Froxlor is open source server administration software. Prior to version 2.3.6, in `EmailSender::add()`, the domain ownership validation for full email sender aliases uses the wrong array index when splitting the email address, passing the local part instead of the domain to `validateLocalDomainOwnership()`. This causes the ownership check to always pass for non-existent "domains," allowing any authenticated customer to add sender aliases for email addresses on domains belonging to other customers. Postfix's `sender_login_maps` then authorizes the attacker to send emails as those addresses. Version 2.3.6 fixes the issue.

Frequently asked questions

What is CVE-2026-41232?: Froxlor is open source server administration software. Prior to version 2.3.6, in `EmailSender::add()`, the domain ownership validation for full email sender aliases uses the wrong array index when splitting the email address, passing the local part instead of the domain to `validateLocalDomainOwnership()`. This causes the ownership check to always pass for non-existent "domains," allowing any authenticated customer to add sender aliases for email addresses on domains belonging to other customers. Postfix's `sender_login_maps` then authorizes the attacker to send emails as those addresses. Version 2.3.6 fixes the issue.
How severe is CVE-2026-41232?: CVE-2026-41232 has a CVSS 3.x base score of 5.0, rated medium severity. It is exploitable over network with low attack complexity, requires low privileges and no user interaction. Impact on confidentiality is none, integrity low, and availability none.
Is CVE-2026-41232 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (14th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2026-41232?: CVE-2026-41232 affects Froxlor. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2026-41232?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
Does CVE-2026-41232 have an EU (EUVD) identifier?: Yes. CVE-2026-41232 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2026-25186.
When was CVE-2026-41232 published?: CVE-2026-41232 was published on 2026-04-23 and last updated on 2026-06-17.

References

Affected products (1)

cpe:2.3:a:froxlor:froxlor:*:*:*:*:*:*:*:*

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