FOSSBilling is an open source billing and client-management platform. From 0.8.4 until 0.8.6, hasManagePermission fails open for inactive non-core modules because its early return on !isExtensionActive skips the module-access and manage_settings checks. A low-privileged staff account with module-level extension access targets a deactivated non-core module through extension/config_get or extension/config_save. The account can call api/admin/extension/config_get or api/admin/extension/config_save for a deactivated non-core module to read decrypted retained extension secrets and overwrite stored extension configuration. The getConfig function returns the decrypted stored configuration despite the module's inactive state. This residual path remained after the earlier CVE-2026-62962 authorization fix. This issue is fixed in version 0.8.6.

Metrics

Attack Vector Network

Attack Complexity Low

Privileges Required Low

Attack Requirements Present

User Interaction None

Vulnerable System Confidentiality Impact Low

Vulnerable System Integrity Impact Low

Vulnerable System Availability Impact None

Subsequent System Confidentiality Impact None

Subsequent System Integrity Impact None

Subsequent System Availability Impact None

No CVSS v3.1

No CVSS v3.0

No CVSS v2

This CVE is not in the KEV list.

No EPSS score available.

Exploitation none

Automatable no

Technical Impact partial

Affected Vendors & Products

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Advisories

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Fixes

Solution

No solution given by the vendor.

Workaround

No workaround given by the vendor.

References
Link Providers
https://github.com/FOSSBilling/FOSSBilling/commit/7a7a30984b58cd1008a573fc70296a7653d8ae04 cve-icon cve-icon
https://github.com/FOSSBilling/FOSSBilling/pull/4184 cve-icon cve-icon
https://github.com/FOSSBilling/FOSSBilling/releases/tag/0.8.6 cve-icon cve-icon
https://github.com/FOSSBilling/FOSSBilling/security/advisories/GHSA-3g7m-ph2r-jhcx cve-icon cve-icon
History

Mon, 19 Oct 2026 17:30:00 +0000

Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'no', 'Exploitation': 'none', 'Technical Impact': 'partial'}, 'version': '2.0.3'}

Mon, 19 Oct 2026 16:00:00 +0000

Type Values Removed Values Added
Description FOSSBilling is an open source billing and client-management platform. From 0.8.4 until 0.8.6, hasManagePermission fails open for inactive non-core modules because its early return on !isExtensionActive skips the module-access and manage_settings checks. A low-privileged staff account with module-level extension access targets a deactivated non-core module through extension/config_get or extension/config_save. The account can call api/admin/extension/config_get or api/admin/extension/config_save for a deactivated non-core module to read decrypted retained extension secrets and overwrite stored extension configuration. The getConfig function returns the decrypted stored configuration despite the module's inactive state. This residual path remained after the earlier CVE-2026-62962 authorization fix. This issue is fixed in version 0.8.6.
Title FOSSBilling: Low-privileged staff can read and modify configuration of deactivated extensions
Weaknesses CWE-862
CWE-863
References
Metrics cvssV4_0

{'score': 2.3, 'vector': 'CVSS:4.0/AV:N/AC:L/AT:P/PR:L/UI:N/VC:L/VI:L/VA:N/SC:N/SI:N/SA:N'}

Projects

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cve-icon MITRE

Status: PUBLISHED

Assigner: GitHub_M

Published:

Updated: 2026-10-19T16:33:30.338Z

Reserved: 2026-10-15T12:47:13.663Z

Link: CVE-2026-111046

cve-icon Vulnrichment

Updated: 2026-10-19T15:59:43.268Z

cve-icon NVD

Status : Deferred

Published: 2026-10-19T16:17:03.330

Modified: 2026-10-19T17:17:02.637

Link: CVE-2026-111046

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

Updated: 2026-10-19T17:30:13Z

Weaknesses