CVE-2026-53645

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Source
https://cve.org/CVERecord?id=CVE-2026-53645
Import Source
https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-53645.json
JSON Data
https://api.osv.dev/v1/vulns/CVE-2026-53645
Aliases
  • GHSA-4hf7-xxxw-64rm
Published
2026-07-06T22:55:56.528Z
Modified
2026-07-15T01:48:58.482557138Z
Severity
  • 8.5 (High) CVSS_V4 - CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:N/VI:H/VA:N/SC:H/SI:H/SA:L CVSS Calculator
Summary
FOSSBilling's missing self-edit prevention in staff permission management allows persistent privilege escalation
Details

FOSSBilling is a free, open-source billing and client management system. Versions prior to 0.8.0 allow a low-privileged staff account to grant arbitrary module permissions to itself through the admin API, resulting in persistent privilege escalation. A staff user that only has staff.create_and_edit_staff can call /api/admin/staff/permissions_update targeting their own account and write any permission structure, bypassing the intended role-based access control boundary. Version 0.8.0 patches the issue. Some workarounds are available. Restrict the staff.create_and_edit_staff permission to only highly trusted staff members and/or use a reverse proxy or WAF to restrict access to /api/admin/staff/permissions_update to specific trusted roles.

Database specific 
{
    "cna_assigner": "GitHub_M",
    "cwe_ids": [
        "CWE-269"
    ],
    "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/53xxx/CVE-2026-53645.json"
}
References

Affected packages

Git / github.com/fossbilling/fossbilling

Affected ranges

Type
GIT
Repo
https://github.com/fossbilling/fossbilling
Events
Introduced
0 Unknown introduced commit / All previous commits are affected
Fixed
3bd35f5b2921d8a26a403142ae0408f95e6463cc
Database specific 
{
    "source": "AFFECTED_FIELD",
    "extracted_events": [
        {
            "introduced": "0"
        },
        {
            "fixed": "0.8.0"
        }
    ]
}

Affected versions

0.*
0.1.0
0.1.1
0.2.0
0.2.1
0.2.10
0.2.2
0.2.3
0.2.4
0.2.5
0.2.6
0.2.7
0.2.8
0.2.9
0.3.0
0.4.0
0.4.1
0.4.2
0.4.3
0.5.0
0.5.1
0.5.2
0.5.3
0.5.4
0.5.5
0.6.0
0.6.1
0.6.10
0.6.11
0.6.12
0.6.13
0.6.14
0.6.15
0.6.16
0.6.17
0.6.18
0.6.19
0.6.2
0.6.20
0.6.21
0.6.22
0.6.3
0.6.4
0.6.5
0.6.6
0.6.7
0.6.8
0.6.9
0.7.0
0.7.1
0.7.2

Database specific

source 
"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-53645.json"