Security readout for executives and security teams
Plain-English summary
This is a medium-severity XSS issue in Cisco Expressway Series and Cisco TelePresence VCS management interfaces. An attacker would need to trick an interface user into opening a malicious link, which could run script in that management session or expose browser-held information.
Executive priority
Treat this as a scheduled remediation item, not an emergency, unless management interfaces are broadly reachable or administrator workstations are high-risk. The main business risk is compromise of browser-based management sessions or sensitive information.
Technical view
CVE-2019-12705 is CWE-79 caused by insufficient validation of user-supplied input in the web-based management interface. It is remotely reachable without attacker authentication, but requires user interaction. Successful exploitation affects confidentiality and integrity at low impact, with no availability impact stated.
Likely exposure
Exposure is most relevant where Cisco Expressway Series or Cisco TelePresence VCS web management interfaces are used. The bundle does not identify exact affected versions, so teams must verify against Cisco’s advisory and their deployed release inventory.
Exploitation context
The provided sources do not show CISA KEV listing or active exploitation evidence. Exploitation requires persuading a management-interface user to click a malicious link, reducing immediacy but still creating risk for privileged administrative sessions.
Researcher notes
Evidence supports a reflected or stored XSS class only at a high level; the bundle does not provide payload details, affected version ranges, or fixed releases. Avoid assuming active exploitation or specific exploitability beyond the stated click-required attack path.
Mitigation direction
- Review Cisco’s advisory for affected releases, fixed software, or workarounds.
- Upgrade or remediate affected Cisco Expressway/VCS systems according to Cisco guidance.
- Restrict management interface access to trusted administrative networks where feasible.
- Warn administrators not to open unsolicited management-interface links.
Validation and detection
- Inventory Cisco Expressway Series and Cisco TelePresence VCS deployments.
- Identify which systems expose the web-based management interface.
- Compare deployed versions against Cisco’s advisory for CVE-2019-12705.
- Confirm remediation status through change records or device version evidence.
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-2019-12705 mapping review
Open the CVE-to-ATT&CK bridge for reviewed, inferred, or future official mappings tied to this CVE.
Open ATT&CK lookup- Severity
- Medium
- CVSS
- 6.1 (3.0)
- Known Exploited
- No
- Published
Vector: CVSS:3.0/AV:N/AC:L/PR:N/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:N/UI:R/S:C/C:L/I:L/A:N2.82.7Primary CVE scoreVulnerability scoring details
Base CVSS 3.0 score
6.1MediumVector: CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N
Source materials
- CVE List V5 sourceCVE List V5
- 20191016 Cisco Expressway Series and TelePresence Video Communication Server 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.