rConfig 3.9.4 is vulnerable to reflected XSS.
Priority HIGH 69CWE-79Published · Updated
Key facts
- Attack vector
- Network
- Privileges required
- Low
- User interaction
- Required
- Attack complexity
- Low
- Impact type
- Cross-site scripting
- Confidentiality · integrity · availability
- Low · Low · None
- Fix status
- No fix listed
Attack profile from CVSS 3.1 · NVD. Fix status from CNA. Impact type from CWE-79.
Summary
rConfig 3.9.4 is vulnerable to reflected XSS. The devicemgmnt.php file improperly validates user input. An attacker can exploit this by crafting arbitrary JavaScript in the deviceId GET parameter to devicemgmnt.php.
Why it matters now
EPSS 0.95937 99th percentileScored 2026-11-07
Public exploit Yes 1 exploit referenceTagged by NVD
Fix No fix listed No fixed version in the sources yet
SSVC decision points
Not available: CISA has not published SSVC decision points for this record.
Affected products
| Vendor | Product | Affected versions | Fixed in | Status | Source |
|---|---|---|---|---|---|
| — | — | all versions | — | No fix listed | CNA |
- — Vendor— Affected all versions Fixed in — No fix listed CNA
Remediation
No fixed version listed by the sources yet.
Timeline
- 2026-10-02 Threatist record created from CVE-2020-12256
- 2026-10-03 Alias added: GHSA-cw43-3hjf-j7v7
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-2020-12256 · CVE Program
- CVE-2020-12256 · NVD
- FIRST EPSS
- GHSA-cw43-3hjf-j7v7 · 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