rConfig Core < 8.2.8 Privilege Escalation via Users API role field
Key facts
- Attack vector
- Network
- Privileges required
- Low
- User interaction
- None
- Attack complexity
- Low
- Attack requirements
- None
- Impact type
- Tampering
- Confidentiality · integrity · availability
- Low · Low · None
- Fix status
- Fixed
Attack profile from CVSS 4.0 · CNA. Fix status from CNA. Impact type from CWE-915.
Summary
rConfig Core before 8.2.8 contains a privilege escalation vulnerability that allows authenticated users to assign arbitrary roles to any account by submitting an unvalidated role field through the Users API during user creation or profile updates. Attackers can exploit the missing allowlist validation and absent admin-level authorization check in StoreUserRequest to mass-assign the Admin role directly to the User model, granting access to privileged features. rConfig Pro and Enterprise are not affected.
Why it matters now
SSVC decision points
CISA ADP · SSVC 2.0.3
- Exploitation
- None
- Automatable
- No
- Technical impact
- Partial
The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.
Affected products
Remediation
- Fix · CNA rConfig v8 Core (rConfig) Fixed in 8.2.8
Timeline
- 2026-10-02 Threatist record created from CVE-2026-63102
- 2026-10-03 Alias added: GHSA-h4rq-p45c-642r
References
More Rconfig vulnerabilities
- TI-2020-08234 lib/ajaxHandlers/ajaxAddTemplate.php in rConfig through 3.94 allows remote attackers to… KEVCVSS 3.1HIGH 8.8
- TI-2020-08233 An issue was discovered in rConfig through 3.9.4. CVSS 3.1CRITICAL 9.8
- TI-2019-12460 An issue was discovered in rConfig 3.9.2. CVSS 3.1CRITICAL 9.8
- TI-2020-08465 rConfig 3.9.4 and previous versions has unauthenticated compliancepolicies.inc.php SQL… CVSS 3.1CRITICAL 9.8
- TI-2020-08761 rConfig before 3.9.5 allows command injection by sending a crafted GET request to… CVSS 3.1CRITICAL 9.8
- TI-2020-10700 lib/crud/userprocess.php in rConfig 3.9.x before 3.9.7 has an authentication bypass… CVSS 3.1CRITICAL 9.8
Sources
- CVE-2026-63102 · CVE Program
- CVE-2026-63102 · NVD
- FIRST EPSS
- GHSA-h4rq-p45c-642r · GitHub Advisory Database · CC BY 4.0
This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences