Security readout for executives and security teams
Plain-English summary
Mattermost Server versions before 3.0.0 included an unnecessary API that allowed a System Admin to change the account name and email address of an LDAP-backed account. The source does not provide CVSS, CWE, exploitation, or detailed impact data.
Executive priority
Treat as a legacy exposure check, not an emergency, unless the organization still runs Mattermost before 3.0.0 with LDAP. Prioritize version inventory and upgrade confirmation.
Technical view
The CVE describes improper availability of an administrative API affecting Mattermost Server before 3.0.0. A System Admin could alter identity attributes on LDAP accounts, specifically account name and email. Evidence is limited to the CVE description and Mattermost security update reference.
Likely exposure
Exposure is likely limited to legacy Mattermost Server deployments before 3.0.0, especially environments using LDAP accounts. Current affected version details are not expanded in the sources.
Exploitation context
The source bundle does not report active exploitation, and the CVE is not in KEV. The described capability requires System Admin privileges, which limits attacker paths but still affects identity integrity.
Researcher notes
The record lacks CVSS, CWE, affected CPEs, detailed advisory text, and exploit evidence. Analysis confidence is constrained by sparse public data; avoid assuming broader privilege escalation or external exploitation.
Mitigation direction
- Identify any Mattermost Server deployments older than 3.0.0.
- Upgrade legacy Mattermost Server instances according to Mattermost guidance.
- Review Mattermost security updates for vendor-specific remediation notes.
- Restrict and audit System Admin access, especially in LDAP-enabled environments.
Validation and detection
- Inventory Mattermost Server versions across production and legacy systems.
- Confirm whether LDAP-backed accounts are enabled on affected deployments.
- Review audit logs for unexpected LDAP account name or email changes.
- Check Mattermost security updates for matching advisory details.
- Verify upgraded instances are no longer before version 3.0.0.
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-2016-11077 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.