Security readout for executives and security teams
Plain-English summary
Cisco TMS has a stored XSS flaw in its web management interface. A privileged authenticated attacker could place malicious data in an interface field, causing script execution when another user views it. The likely impact is theft of browser-based information or actions within the management session, not full system compromise by itself.
Executive priority
Treat this as a moderate-priority remediation item. It is not reported as actively exploited in the supplied evidence, but it affects an administrative collaboration-management platform and could expose sensitive session data if an attacker already has privileged access.
Technical view
CVE-2020-3185 is CWE-79 in Cisco TelePresence Management Suite. The CVSS v3.0 score is 4.8, with network attack vector, low complexity, high privileges required, user interaction required, changed scope, and low confidentiality and integrity impact. The bundle does not specify affected versions or fixed releases.
Likely exposure
Exposure is limited to environments running Cisco TelePresence Management Suite with accessible web management interfaces. Risk is higher where many privileged users administer TMS or where the management interface is reachable beyond trusted administrative networks.
Exploitation context
The provided sources do not show CISA KEV listing or active exploitation evidence. Exploitation requires authenticated high-privilege access and another user interacting with affected web-interface content. Stored XSS can still matter because management sessions may carry sensitive browser context.
Researcher notes
Key unknowns in the supplied bundle are affected version ranges and fixed releases. Validation should focus on asset presence, version mapping to Cisco's advisory, privilege boundaries, and administrative-interface exposure. Do not assume exploit activity without additional evidence.
Mitigation direction
- Identify any deployed Cisco TelePresence Management Suite instances.
- Check Cisco's advisory for affected and fixed release guidance.
- Patch or upgrade according to Cisco guidance when confirmed applicable.
- Restrict TMS management access to trusted administrative networks.
- Apply least privilege for TMS administrative accounts.
- Review suspicious changes to web-interface data fields.
Validation and detection
- Confirm whether Cisco TMS is present in the environment.
- Compare deployed TMS versions against the Cisco advisory.
- Verify the web management interface is not broadly reachable.
- Review TMS users for unnecessary high-privilege access.
- Check logs for unexpected authenticated edits in management fields.
Public sources used
Generated from the cited source records. This long-tail analysis has not been individually reviewed by a named human.
Conservative CVE-to-ATT&CK context
These mappings and lookup hints may be relevant to the vulnerability behavior, CWE, affected product, or exposure path. Glexia-inferred context is not an official MITRE, ATT&CK, CWE, or CVE Program mapping.
ATT&CK lookup starting points
Use these exact CWE pages and searches to review the Glexia ATT&CK library from this CVE's weakness and description context.
CWE-79: User-session and phishing behavior lookup
Client-side and session-facing weaknesses should be reviewed alongside initial-access and user-execution behaviors. Open the exact CWE lookup page first, then review the ATT&CK searches from that MITRE weakness context. This is a Glexia lookup hint, not an official ATT&CK mapping.
Open ATT&CK lookupCVE-2020-3185 mapping review
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Open ATT&CK lookup- Severity
- Medium
- CVSS
- 4.8 (3.0)
- Known Exploited
- No
- Published
Vector: CVSS:3.0/AV:N/AC:L/PR:H/UI:R/S:C/C:L/I:L/A:N
CNA and ADP enrichment extracted from CVE v5
These fields come from the CVE record and ADP containers, not from Glexia's Take. They preserve time-varying source decisions such as CISA SSVC, KEV status, CVSS metrics, and provider references.
CVSS vector scores
1 official scoreWe collect every scored CVSS vector available in the official CNA and ADP containers. When more than one version is present, the table keeps the source vectors side by side instead of collapsing them into the highest score.
CVSS:3.0/AV:N/AC:L/PR:H/UI:R/S:C/C:L/I:L/A:N1.72.7Primary CVE scoreVulnerability scoring details
Base CVSS 3.0 score
4.8MediumVector: CVSS:3.0/AV:N/AC:L/PR:H/UI:R/S:C/C:L/I:L/A:N
Source materials
- CVE List V5 sourceCVE List V5
- 20200304 Cisco TelePresence Management Suite Stored Cross-Site Scripting VulnerabilityCVE reference · vendor-advisory, x_refsource_CISCO
Products and packages named in the record
CWE details
CWE links open Glexia weakness intelligence pages with official CWE context, developer remediation guidance, and related CVE mappings.