Security readout for executives and security teams
Plain-English summary
Cisco Firepower Management Center had multiple web interface XSS flaws. A highly privileged authenticated attacker could trick an FMC user into opening a crafted link, causing script to run in that user’s browser session. The likely business impact is limited confidentiality or integrity loss inside the management interface, not direct device takeover from the CVE description alone.
Executive priority
Treat this as a scheduled remediation item unless FMC is broadly reachable or administrator accounts are weakly controlled. It affects a security management platform, but the documented attack path requires high privileges and user interaction, with no cited active exploitation.
Technical view
CVE-2019-15268 is CWE-79 in Cisco FMC’s web-based management interface, caused by insufficient validation of user-supplied input. CVSS 3.0 is 4.8 with network access, low complexity, high privileges required, user interaction required, changed scope, low confidentiality, low integrity, and no availability impact.
Likely exposure
Exposure is limited to organizations running Cisco Firepower Management Center. The source bundle does not specify affected versions, so vulnerability managers should compare deployed FMC versions against Cisco’s advisory rather than assuming all or no FMC instances are affected.
Exploitation context
The provided sources do not show known active exploitation, and KEV status is false. Exploitation requires an authenticated remote attacker with high privileges and a victim user who clicks a crafted link in the management interface context.
Researcher notes
Do not infer unauthenticated exploitation or direct appliance compromise from this record. The key gaps are affected version details and fixed release information, which are not included in the supplied bundle beyond the Cisco advisory reference.
Mitigation direction
- Review Cisco’s advisory for affected and fixed FMC releases.
- Upgrade or patch FMC according to Cisco guidance.
- Restrict FMC web access to trusted administrative networks.
- Enforce least-privilege access for FMC administrators.
- Warn FMC users not to open untrusted management-interface links.
Validation and detection
- Inventory all Cisco Firepower Management Center deployments.
- Record FMC software versions and compare them with Cisco’s advisory.
- Review access controls for the FMC web interface.
- Check logs for unusual authenticated FMC web activity.
- Confirm remediation status after applying Cisco guidance.
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-2019-15268 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
- 20191016 Cisco Firepower Management Center Multiple Cross-Site Scripting VulnerabilitiesCVE 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.