CVE-2025-20356: Cisco Cyber Vision · Cross-site Scripting
Affects Cisco Cyber VisionSource CVE Database V5
Not known to be exploited · CVSS 5.4 Medium : upgrade to 4.3.0 when convenient.
Data as of 26 Oct 2026, 10:12 UTC
- EPSS
- 0.2% chance of exploitation in 30 days – higher than 12% of CVEsExploit Prediction Scoring System: the likelihood attackers will use this flaw soon.
- Patch
- Available – fixed in 4.3.0
CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:NExploitation evidence
Disclosed: evidence found.
CVE published 1 Oct 2025
Detectable: no evidence on record.
No public nuclei template indexed
Weaponised: no evidence on record.
No public exploit code indexed in Metasploit or Exploit-DB
Exploited in the wildExploited: no evidence on record.
Not in CISA KEV and no source reports exploitation
Observed by OffSeq MirageSeen by Mirage: no evidence on record.
No attack traffic recorded by OffSeq Mirage sensors
A missing step is not evidence of safety. Sources: cve.org (opens in a new tab), the Metasploit, Exploit-DB and nuclei-templates index as of 26 Oct 2026.
What to do
Upgrade Cisco Cyber Vision to 4.3.0.
Affected software
| Product | Affected | Fixed in |
|---|---|---|
| Cisco Cisco Cyber Vision | Affected
| Fixed in
|
AI-suggested
- Immediate review and restriction of administrative access to the Cisco Cyber Vision management interface, ensuring only trusted personnel have Sensor Explorer page privileges.
- Implement strong authentication mechanisms, including multi-factor authentication (MFA), to reduce the risk of credential compromise.
- Monitor and audit user activity within the Cyber Vision interface to detect anomalous behavior indicative of exploitation attempts.
- Apply input validation and sanitization controls at the application level if possible, or deploy web application firewalls (WAFs) configured to detect and block XSS payloads targeting the management interface.
- Coordinate with Cisco for official patches or updates addressing this vulnerability and plan timely deployment once available.
- Conduct security awareness training for administrators to recognize phishing or social engineering attempts that could lead to credential theft.
- Segment the management interface network access to limit exposure and reduce the attack surface.
- Regularly review and update user roles and permissions to enforce the principle of least privilege.
Description
A vulnerability in the web-based management interface of Cisco Cyber Vision Center could allow an authenticated, remote attacker to conduct cross-site scripting (XSS) attacks against a user of the interface. This vulnerability is due to insufficient validation of user-supplied input by the web-based management interface of an affected system. An attacker could exploit this vulnerability by injecting malicious code into specific pages of the interface. A successful exploit could allow the attacker to execute arbitrary script code in the context of the affected interface or access sensitive, browser-based information. To exploit this vulnerability, the attacker must have valid administrative credentials that allow access to the Sensor Explorer page. By default, Admin and Product user roles have this access, as do any custom users that are configued to allow access to the Sensors page.