The web console for Mimosa B5, B5c, and C5x firmware through 2.8.0.2 is vulnerable to…
Key facts
- Attack vector
- Network
- Privileges required
- None
- 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
The web console for Mimosa B5, B5c, and C5x firmware through 2.8.0.2 is vulnerable to stored XSS in the set_banner() function of /var/www/core/controller/index.php. An unauthenticated attacker may set the contents of the /mnt/jffs2/banner.txt file, stored on the device's filesystem, to contain arbitrary JavaScript. The file contents are then used as part of a welcome/banner message presented to unauthenticated users who visit the login page for the web console. This vulnerability does not occur in the older 1.5.x firmware versions.
Why it matters now
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
CPE configurations NVD · 6
| CPE | Versions | Role | Vendor |
|---|---|---|---|
| cpe:2.3:o:mimosa:b5_firmware:*:*:*:*:*:*:*:* | up to 2.8.0.3 | Vulnerable | Mimosa |
| cpe:2.3:h:mimosa:b5:-:*:*:*:*:*:*:* | not specified by NVD | Running on | Mimosa |
| cpe:2.3:o:mimosa:b5c_firmware:*:*:*:*:*:*:*:* | up to 2.8.0.3 | Vulnerable | Mimosa |
| cpe:2.3:h:mimosa:b5c:-:*:*:*:*:*:*:* | not specified by NVD | Running on | Mimosa |
| cpe:2.3:o:mimosa:c5c_firmware:*:*:*:*:*:*:*:* | up to 2.8.0.3 | Vulnerable | Mimosa |
| cpe:2.3:h:mimosa:c5c:-:*:*:*:*:*:*:* | not specified by NVD | Running on | Mimosa |
- cpe:2.3:o:mimosa:b5_firmware:*:*:*:*:*:*:*:* Versions up to 2.8.0.3 Vulnerable ·Mimosa
- cpe:2.3:h:mimosa:b5:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·Mimosa
- cpe:2.3:o:mimosa:b5c_firmware:*:*:*:*:*:*:*:* Versions up to 2.8.0.3 Vulnerable ·Mimosa
- cpe:2.3:h:mimosa:b5c:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·Mimosa
- cpe:2.3:o:mimosa:c5c_firmware:*:*:*:*:*:*:*:* Versions up to 2.8.0.3 Vulnerable ·Mimosa
- cpe:2.3:h:mimosa:c5c:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·Mimosa
Remediation
No fixed version listed by the sources yet.
Timeline
- 2026-10-02 Threatist record created from CVE-2020-25205
- 2026-10-03 Alias added: GHSA-w338-c5qq-hv3p
References
More Mimosa B5 Firmware vulnerabilities
- TI-2020-15447 The web console for Mimosa B5, B5c, and C5x firmware through 2.8.0.2 allows authenticated… CVSS 3.1HIGH 7.2
Sources
- CVE-2020-25205 · CVE Program
- CVE-2020-25205 · NVD
- FIRST EPSS
- GHSA-w338-c5qq-hv3p · 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