Stored XSS in SmodBIP and MegaBIP
Priority MEDIUM 41CWE-79Published · Updated
Key facts
- Attack vector
- Network
- Privileges required
- None
- User interaction
- Required
- Attack complexity
- Low
- Impact type
- Cross-site scripting
- Confidentiality · integrity · availability
- High · High · High
- Fix status
- Fixed
Attack profile from CVSS 3.1 · CNA. Fix status from CNA. Impact type from CWE-79.
Summary
Improper Input Validation vulnerability in MegaBIP and already unsupported SmodBIP software allows for Stored XSS.This issue affects SmodBIP in all versions and MegaBIP in versions up to 4.36.2. MegaBIP 5.08 was tested and is not vulnerable. A precise range of vulnerable versions remains unknown.
Why it matters now
Exploitation None reported CISA SSVC · not in CISA KEV
EPSS 0.00527 44th percentileScored 2026-11-07
Fix Fixed MegaBIP (Jan Syski): 5.08
SSVC decision points
CISA ADP · SSVC 2.0.3
- Exploitation
- None
- Automatable
- No
- Technical impact
- Total
The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.
Affected products
| Vendor | Product | Affected versions | Fixed in | Status | Source |
|---|---|---|---|---|---|
| Jan Syski | MegaBIP | up to 4.36.2 | 5.08 | Patch available | CNA |
| Jan Syski | SmodBIP | all versions | — | No fix listed | CNA |
Remediation
- Fix · CNA MegaBIP (Jan Syski) Fixed in 5.08
Timeline
- 2026-10-02 Threatist record created from CVE-2023-5378
- 2026-10-03 Alias added: GHSA-9w3h-593p-q56r
References
More Jan Syski Megabip vulnerabilities
- TI-2024-01473 Remote Code Execution in MegaBIP CVSS 4.0CRITICAL 9.3
- TI-2024-01542 Arbitrary File Upload in MegaBIP CVSS 4.0CRITICAL 9.3
- TI-2024-01472 SQL Injection in MegaBIP CVSS 4.0CRITICAL 9.3
Sources
- CVE-2023-5378 · CVE Program
- CVE-2023-5378 · NVD
- FIRST EPSS
- GHSA-9w3h-593p-q56r · 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