Security readout for executives and security teams
Plain-English summary
CVE-2016-11082 is a cross-site scripting issue in Mattermost Server before 2.2.0. A crafted link could cause unwanted script execution in a user's browser. The source bundle does not provide CVSS, CWE, detailed impact, or confirmed exploitation evidence.
Executive priority
Treat this as a legacy exposure check, not a confirmed emergency. If Mattermost Server before 2.2.0 is still present, prioritize remediation because user-facing XSS can support account abuse and trust erosion.
Technical view
The CVE describes XSS in Mattermost Server versions before 2.2.0 via a crafted link. Public details in the provided bundle are minimal, with no CVSS vector, CWE mapping, exploit maturity, or specific attack prerequisites beyond link-based XSS.
Likely exposure
Exposure is likely limited to organizations still running Mattermost Server earlier than 2.2.0. The bundle does not identify affected deployment types, configurations, or supported product branches.
Exploitation context
The source bundle does not show CISA KEV listing or any cited evidence of active exploitation. XSS generally requires a user interaction path, but the provided CVE text only states that a crafted link is involved.
Researcher notes
The record is sparse. Avoid assuming affected components, payload behavior, authentication requirements, or exploit availability. Validate exposure through version inventory and vendor advisory review rather than speculative testing.
Mitigation direction
- Inventory Mattermost Server versions and identify any instance earlier than 2.2.0.
- Review Mattermost security updates for vendor-confirmed remediation guidance.
- Upgrade affected legacy instances to a supported fixed version after change control.
- Prioritize user-facing or internet-accessible Mattermost deployments first.
Validation and detection
- Confirm no production instance reports a Mattermost Server version earlier than 2.2.0.
- Check ticketing and monitoring for reported script execution or suspicious link behavior.
- Review web and application logs for unusual user sessions around shared links.
- Document whether any legacy Mattermost deployment remains in scope.
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.
CVE-2016-11082 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
- Unknown
- CVSS
- Not scored
- Known Exploited
- No
- Published
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 and timeline data
No CVSS vectors or timeline events were available in the normalized CVE source material.
Source materials
- CVE List V5 sourceCVE List V5
- https://mattermost.com/security-updates/CVE reference · x_refsource_CONFIRM
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.