Cross-site scripting in Cisco Web Security Appliance
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 3.0 · NVD. Fix status from CNA. Impact type from CWE-79.
Summary
A vulnerability in the web-based management interface of Cisco Web Security Appliance (WSA) could allow an unauthenticated, remote attacker to conduct a reflected cross-site scripting (XSS) attack against a user of the web-based management interface of an affected device. The vulnerability is due to insufficient validation of user-supplied input by the web-based management interface of an affected device. An attacker could exploit this vulnerability by persuading a user of the interface to click a crafted link. A successful exploit could allow the attacker to execute arbitrary script code in the context of the interface or allow the attacker to access sensitive browser-based information. Cisco Bug IDs: CSCvf37392.
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
| Vendor | Product | Affected versions | Fixed in | Status | Source |
|---|---|---|---|---|---|
| — | Cisco Web Security Appliance | Cisco Web Security Appliance | — | No fix listed | CNA |
- Cisco Web Security Appliance Vendor— Affected Cisco Web Security Appliance Fixed in — No fix listed CNA
Remediation
No fixed version listed by the sources yet.
Timeline
- 2026-10-02 Threatist record created from CVE-2018-0093
- 2026-10-03 Alias added: GHSA-hg49-9432-gc83
References
More Cisco Web Security Appliance vulnerabilities
- TI-2023-06741 Buffer overflow in Cisco Secure Web Appliance CVSS 3.1CRITICAL 9.8
- TI-2018-00369 Uncontrolled resource consumption in Cisco AsyncOS Software for Cisco Web Security… CVSS 3.0HIGH 8.6
- TI-2019-01508 Cisco Web Security Appliance HTTPS Certificate Denial of Service Vulnerability CVSS 3.1HIGH 8.6
- TI-2018-00312 A vulnerability in traffic-monitoring functions in Cisco Web Security Appliance (WSA)… CVSS 3.0HIGH 7.5
- TI-2021-01086 Cisco Web Security Appliance Privilege Escalation Vulnerability CVSS 3.1HIGH 8.8
- TI-2019-11999 Cisco Web Security Appliance Unauthorized Device Reset Vulnerability CVSS 3.1HIGH 8.8
Sources
- CVE-2018-0093 · CVE Program
- CVE-2018-0093 · NVD
- FIRST EPSS
- GHSA-hg49-9432-gc83 · 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