Low 2.3Published Oct 19, 2026

CVE-2026-111046FOSSBilling: Low-privileged staff can read and modify configuration of deactivated extensions

Updated under an hour ago (2026-10-21 03:10 UTC)

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Every CVE for FOSSBilling

Exploited in the last 30 days

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.

CVSS: 2.3 LOW (v4.0, CNA)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
Weakness (CWE): CWE-862, CWE-863
Known exploited: Not in CISA's KEV catalog
EPSS (exploitation in the next 30 days): Not loaded for this CVE
Assigned by: GitHub_M
NVD analysis: Deferred
Record last updated: Oct 19, 2026
First seen by InfoSec Signals: Oct 19, 2026

Affected products

Affected products

FOSSBilling FOSSBilling fossbilling:fossbilling (from the name)	from 0.8.4, < 0.8.6	CNA record

References

https://github.com/FOSSBilling/FOSSBilling/security/advisories/GHSA-3g7m-ph2r-jhcxx-refsource-confirm
https://github.com/FOSSBilling/FOSSBilling/pull/4184x-refsource-misc
https://github.com/FOSSBilling/FOSSBilling/commit/7a7a30984b58cd1008a573fc70296a7653d8ae04x-refsource-misc
https://github.com/FOSSBilling/FOSSBilling/releases/tag/0.8.6x-refsource-misc

The CVE record on cve.org NVD's entry

The CVE record is authoritative. Products marked “from the name” were identified from the CNA's free-text names, not a CPE, and are matched less certainly. This product uses the NVD API but is not endorsed or certified by the NVD.