Security readout for executives and security teams
Plain-English summary
CVE-2018-9856 is a CSRF issue in Kotti's local roles feature. A tricked privileged user could trigger a permission change through the share endpoint. The sources identify affected Kotti versions before 1.3.2 and 2.x before 2.0.0b2, but provide no CVSS score or confirmed active exploitation.
Executive priority
Treat this as a targeted web application risk, not an emergency internet-wide crisis. Prioritize remediation if Kotti is used for sensitive content management or if many privileged users access the admin interface through email or web browsing.
Technical view
The reported flaw is cross-site request forgery in Kotti local roles, demonstrated through a permission-changing /admin-document/@@share request. The impact depends on exposed Kotti administration workflows and the privileges of the user targeted by CSRF. Public metadata does not include detailed patch notes, CVSS, CWE, or exploit telemetry.
Likely exposure
Exposure is likely limited to organizations running Kotti versions before 1.3.2 or 2.x before 2.0.0b2, especially where authenticated administrative users manage document sharing or local roles through a browser-accessible interface.
Exploitation context
The source bundle does not show CISA KEV listing or confirmed active exploitation. The issue is described as demonstrable CSRF, meaning exploitation would generally require inducing an authenticated, privileged user to perform a browser request.
Researcher notes
Evidence is sparse. The CVE description names the vulnerable workflow and version bounds, but public metadata lacks scoring, CWE classification, and detailed remediation text. Analysis should stay tied to Kotti local roles and the /admin-document/@@share permission-change behavior.
Mitigation direction
- Upgrade Kotti to 1.3.2, 2.0.0b2, or a later supported release.
- Review Kotti vendor guidance and issue 551 for branch-specific remediation details.
- Restrict access to administrative sharing workflows to trusted networks or users.
- Audit local role assignments for unexpected permission changes.
- Ensure CSRF protections are enabled around permission-changing requests.
Validation and detection
- Inventory Kotti deployments and record exact application versions.
- Confirm no deployment runs Kotti before 1.3.2 or affected 2.x beta versions.
- Review administrative share and local-role change logs for anomalies.
- Verify permission-changing share requests require valid CSRF protection.
- Check whether exposed admin routes are reachable from untrusted networks.
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-2018-9856 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://github.com/Kotti/Kotti/issues/551CVE reference · x_refsource_MISC
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.