CVE-2026-43921
CVSS:4.0/AV:N/AC:L/AT:P/PR:H/UI:N/VC:H/VI:H/VA:H/SC:H/SI:H/SA:H
Summary
FOSSBilling is a free, open-source billing and client management system. Versions 0.6.10 through 0.7.2 have a PHP code injection vulnerability in FOSSBilling's Config::prettyPrintArrayToPHP() method. When configuration values are updated, string values are written into config.php without escaping single quotes. Because config.php is loaded via a bare include on every HTTP request, an attacker with admin privileges can inject arbitrary PHP code that executes on every subsequent request. Version 0.8.0 contains a patch. Some workarounds are available. Restrict admin access to trusted personnel only; audit config.php for unexpected PHP code; and/ or at the reverse proxy/WAF level, restrict access to admin API endpoints that modify configuration.
Affected Software
| Vendor | Product | Version Range | Status |
|---|---|---|---|
| FOSSBilling | FOSSBilling | >= 0.6.10, < 0.8.0 | affected |
Weaknesses
- CWE-94: CWE-94: Improper Control of Generation of Code ('Code Injection')
ADP Enrichment
CISA ADP Vulnrichment
- SSVC:
- Exploitation: none
- Automatable: no
- Technical Impact: total
References
Feedback
Was this page helpful?
Glad to hear it! Please tell us how we can improve.
Sorry to hear that. Please tell us how we can improve.