Cross-site scripting in NGINX Controller
Priority MEDIUM 44CWE-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
- No fix listed
Attack profile from CVSS 3.1 · NVD. Fix status from CNA. Impact type from CWE-79.
Summary
In NGINX Controller 3.3.0-3.4.0, undisclosed API endpoints may allow for a reflected Cross Site Scripting (XSS) attack. If the victim user is logged in as admin this could result in a complete compromise of the system.
Why it matters now
EPSS 0.01466 73rd percentileScored 2026-11-07
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 |
|---|---|---|---|---|---|
| — | NGINX Controller | 3.3.0-3.4.0 | — | No fix listed | CNA |
- NGINX Controller Vendor— Affected 3.3.0-3.4.0 Fixed in — No fix listed CNA
Remediation
No fixed version listed by the sources yet.
Timeline
- 2026-10-02 Threatist record created from CVE-2020-5901
- 2026-10-03 Alias added: GHSA-j2cc-c3x7-54xh
References
More F5 Nginx Controller vulnerabilities
- TI-2020-16818 Path traversal in NGINX Controller CVSS 3.1CRITICAL 9.8
- TI-2020-04781 In NGINX Controller versions prior to 3.2.0, an unauthenticated attacker with network… CVSS 3.1HIGH 8.6
- TI-2020-04818 Cross-site request forgery in NGINX Controller CVSS 3.1HIGH 8.8
- TI-2020-04812 Session fixation in NGINX Controller CVSS 3.1HIGH 8.1
- TI-2020-04785 Cleartext transmission of sensitive information in NGINX Controller CVSS 3.1HIGH 8.1
- TI-2020-04828 Missing authentication in NGINX Controller CVSS 3.1HIGH 7.5
Sources
- CVE-2020-5901 · CVE Program
- CVE-2020-5901 · NVD
- FIRST EPSS
- GHSA-j2cc-c3x7-54xh · 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