Security readout for executives and security teams
Plain-English summary
This flaw affects Cisco Firepower Management Center’s web management interface. An authenticated attacker could plant script content that runs when another interface user follows a malicious link, potentially exposing browser-held information or changing what that user sees or does in the console.
Executive priority
Treat this as a moderate-priority management-plane issue. It is less urgent than unauthenticated remote code execution, but FMC is security infrastructure, so exposed or widely administered consoles should be remediated promptly.
Technical view
CVE-2019-1949 is a CWE-79 cross-site scripting issue caused by insufficient validation of user-supplied input in Cisco FMC. CVSS v3.0 is 4.8: network reachable, low attack complexity, high privileges required, user interaction required, changed scope, low confidentiality and integrity impact, no availability impact.
Likely exposure
Exposure is limited to organizations running Cisco Firepower Management Center. The bundle does not specify affected versions, so validation requires checking Cisco’s advisory against deployed FMC releases.
Exploitation context
The source describes an authenticated remote attacker who must persuade a web interface user to click a malicious link. The bundle does not list CISA KEV status or any cited evidence of active exploitation.
Researcher notes
Key constraints are authenticated attacker access and required user interaction. The bundle lacks affected version granularity and fixed-release details, so avoid assuming scope beyond Cisco FMC until the vendor advisory is reviewed.
Mitigation direction
- Review Cisco’s advisory for affected and fixed FMC release guidance.
- Upgrade or remediate only according to Cisco’s current vendor guidance.
- Restrict FMC management interface access to trusted administrative networks.
- Limit FMC administrative privileges to users with a clear operational need.
- Warn FMC users not to follow unsolicited management-console links.
Validation and detection
- Inventory all Cisco Firepower Management Center deployments and versions.
- Compare deployed releases with Cisco’s advisory for CVE-2019-1949.
- Confirm the FMC web interface is not broadly reachable.
- Review which accounts have FMC administrative access.
- Check security monitoring for unusual FMC console activity.
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-2019-1949 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
- 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
- 20190807 Cisco Firepower Management Center Persistent 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.
Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')
Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') represents a recurring weakness pattern that can create exploitable paths when design, validation, or implementation controls are missing.