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CVE-2025-660399.3CriticalCWE-287

CVE-2025-66039: FreePBX Endpoint Manager Allows Unauthenticated Logins to Administrator Control Panel via Forged Basic Auth Header

FreePBX · framework

Affected: FreePBX framework · Exploitation: possible (1 to 10%)

Not in CyberSIXT coverage yet: no article names this CVE. This page shows the public record.

3.3%probability of exploitation in the next 30 days
88th percentile
050100

Higher than 88% of scored CVEs

9.3CriticalCVSS 4.0
LowCrit.

DescriptionCVE.org

FreePBX Endpoint Manager is a module for managing telephony endpoints in FreePBX systems. Versions are vulnerable to authentication bypass when the authentication type is set to "webserver." When providing an Authorization header with an arbitrary value, a session is associated with the target user regardless of valid credentials. This issue is fixed in versions 16.0.44 and 17.0.23.

Affected products1

From the CVE record. A product or version that is not listed is unknown, not unaffected.

  • FreePBX · framework< 16.0.44; >= 17.0.1, < 17.0.23

On the Atlas

Every published CVE is on the CyberSIXT Atlas, grouped by weakness, vendor and month.

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Exploitation
Possible (1 to 10%). EPSS between 1% and 10%.
CISA KEV
Not listed
Public check
No public nuclei template
Vendor
FreePBX
Published
December 2025

CoverageNo articles yet

No CyberSIXT article names CVE-2025-66039 yet, so there is no coverage timeline, action brief or change log for it. Everything on this page comes from the public CVE record, CISA KEV, EPSS and the nuclei template index. Search the archive or see the CVEs in the news.

References

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