SecAlerts
F

FOSSBilling

Security Risk Profile

39
/100
low

Security Risk Score

Comprehensive risk assessment based on 36 vulnerabilities, EPSS scores, exploitation status, and remediation availability.

📅 Data spans from June 14, 2023 to present

36
Total CVEs
14
Critical+High
0
Exploited
9
Unpatched

Threat Assessment

Avg CVSS
6.7
Base severity
Avg EPSS
0%
Exploit probability
Unpatched
9
Critical/High
Risk Level
39/100
low
🆕 3Fresh (<7d)📈 3 in Last 30 Days

Severity Distribution

Critical
6
High
8
Medium
19
Low
3

Exploit Likelihood

>50% chance
0
20-50%
0
5-20%
0
<5%
1

Age Distribution

Common Weaknesses (CWE)

1
Infoleak
7
2
XSS
2
3
SQL Injection
2
4
Path Traversal
1
5
Race Condition
1

Most Affected Products

1. fossbilling fossbilling39
2. fossbilling Massmailer1

Recent Vulnerabilities

See more →
CVE-2026-111056
CVSS 6.9medium

FOSSBilling: Unauthenticated client account enumeration via guest signup endpoint

Oct 19, 2026🔧 No Patch
CVE-2026-111053
CVSS 6.9medium

FOSSBilling: Unauthenticated attacker can probe existence of arbitrary files via guest/system/template_exists

Oct 19, 2026🔧 No Patch
CVE-2026-111046
CVSS 2.3low

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

Oct 19, 2026🔧 No Patch
CVE-2026-53648
CVSS 5.1medium

FOSSBilling: Downloadable product files can be overwritten through filename collisions

Jul 6, 2026🔧 No Patch
CVE-2026-53647
CVSS 6.9medium

FOSSBilling vulnerable to unauthenticated API key configuration disclosure via guest Serviceapikey get_info endpoint

Jul 6, 2026🔧 No Patch
CVE-2026-53644
CVSS 8.6high

FOSSBilling's missing order-state validation allows clients to read and reset API key secrets for non-active orders

Jul 6, 2026🔧 No Patch
CVE-2026-53643
CVSS 8.7high

FOSSBilling allows low-privileged staff accounts to perform unauthorized actions via admin API endpoints

Jul 6, 2026🔧 No Patch
CVE-2026-53642
CVSS 5.3medium

FOSSBilling: Unverified clients can access client-area pages when email confirmation is required

Jul 6, 2026🔧 No Patch
CVE-2026-53641
CVSS 4.8medium

FOSSBilling has stored XSS in client email views via unescaped content in JavaScript template literal

Jul 6, 2026🔧 No Patch
CVE-2026-53640
CVSS 2.3low

FOSSBilling missing authorization checks on read-only admin API endpoints expose sensitive staff, client, and redirect data

Jul 6, 2026🔧 No Patch

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FOSSBilling Security Vulnerabilities & Risk Score | 36 CVEs | SecAlerts - SecAlerts