Security readout for executives and security teams
Plain-English summary
This is a cross-site scripting flaw in Cisco Unified Communications Manager web interfaces. An attacker would need a user to click a crafted link, then malicious script could run in that user’s browser context and access interface-related browser data. It is not described as a server takeover or service outage issue.
Executive priority
Treat this as a moderate-priority management-interface risk. It requires user interaction, but successful exploitation could affect administrative browser sessions. Address during regular network infrastructure patching, sooner if CUCM administration is broadly accessible or exposed beyond trusted networks.
Technical view
CVE-2019-12715 is CWE-79 in Cisco Unified Communications Manager and Unified CM Session Management Edition web-based interfaces. The source attributes it to insufficient validation of user-supplied input. CVSS 3.0 is 6.1 with network attack vector, no privileges required, user interaction required, changed scope, low confidentiality and integrity impact, and no availability impact.
Likely exposure
Exposure is most relevant where Cisco Unified Communications Manager or Unified CM SME web interfaces are reachable by administrators or operators. The provided data does not specify affected versions, deployment conditions, fixed releases, or whether internet exposure is common.
Exploitation context
The source describes click-based exploitation: the attacker must persuade an interface user to open a crafted link. The bundle does not show CISA KEV listing, active exploitation evidence, public exploit details, or exploitation at scale.
Researcher notes
Evidence supports reflected or stored web-interface XSS only at a high level; the bundle does not specify endpoint, parameter, fixed versions, or workaround details. Avoid assuming exploitation or remediation beyond Cisco’s advisory. Validate scope through asset inventory and vendor version mapping.
Mitigation direction
- Review Cisco’s advisory for affected and fixed release guidance.
- Restrict access to CUCM web interfaces to trusted administrative networks.
- Prioritize updating affected CUCM or SME systems per Cisco guidance.
- Train administrators to avoid unsolicited links targeting management interfaces.
Validation and detection
- Inventory Cisco Unified Communications Manager and SME deployments.
- Compare installed versions against Cisco’s advisory when available.
- Confirm management interfaces are not broadly reachable.
- Review browser-facing admin workflows for suspicious link reports.
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-2019-12715 mapping review
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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
- 20191002 Cisco Unified Communications Manager 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.