Security readout for executives and security teams
Plain-English summary
Mattermost Server versions before 3.0.2 had a flaw where session IDs and session tokens were mishandled. The public record does not explain the exact impact, severity, or attack path, so urgency depends on whether any legacy Mattermost deployment remains in use.
Executive priority
Treat this as legacy exposure cleanup. Escalate if an internet-facing or business-critical Mattermost instance is older than 3.0.2; otherwise, the public evidence does not support emergency prioritization.
Technical view
CVE-2016-11072 concerns incorrect handling of distinct session identifiers and session tokens in Mattermost Server before 3.0.2. The bundled sources provide no CVSS score, CWE, exploit details, or vendor mitigation text beyond the version boundary.
Likely exposure
Exposure is limited to Mattermost Server deployments older than 3.0.2. The source bundle does not identify affected editions, configurations, deployment types, or CPEs.
Exploitation context
The CVE is not listed as KEV in the provided bundle, and no cited source states active exploitation. Public technical detail is sparse, so exploitation feasibility cannot be assessed from these sources alone.
Researcher notes
The key constraint is lack of detail. The CVE text names session ID and session token mishandling, but does not define impact, prerequisites, or validation logic. Avoid assuming authentication bypass or session hijacking without vendor evidence.
Mitigation direction
- Inventory Mattermost Server instances and versions.
- Prioritize any instance older than 3.0.2 for vendor-guided remediation.
- Consult Mattermost security updates before choosing an upgrade path.
- Avoid continued operation of unsupported legacy Mattermost builds.
Validation and detection
- Confirm whether any Mattermost Server deployment is below version 3.0.2.
- Check asset inventories, CMDB entries, and exposed service records.
- Review Mattermost security updates for matching advisory details.
- Document unknowns where product edition or configuration evidence is missing.
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.
Credential and access behavior lookup
The CVE wording references authentication or credential exposure, so valid-account and credential-access review may help. This is a Glexia inferred lookup path, not an official MITRE, ATT&CK, or CVE Program mapping.
Open ATT&CK lookupCVE-2016-11072 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.