Security readout for executives and security teams
Plain-English summary
This flaw lets an attacker trick a logged-in SeedDMS user into unknowingly locking documents. It is primarily a workflow and availability risk for organizations using affected SeedDMS versions, not a confirmed data-theft or code-execution issue based on the provided sources.
Executive priority
Treat this as a near-term maintenance issue if SeedDMS supports regulated documents, operational approvals, or time-sensitive workflows. It does not justify emergency response unless affected SeedDMS is business-critical or externally exposed.
Technical view
CVE-2021-36542 is a CSRF issue in SeedDMS /op/op.LockDocument.php affecting v5.1.x before 5.1.23 and v6.0.x before 6.0.16. A remote attacker can induce an authenticated user to visit an attacker-controlled page, causing document-lock actions without the user’s intent.
Likely exposure
Exposure is likely limited to organizations running the specified SeedDMS version ranges with authenticated users who access the application through a browser. Publicly reachable or partner-facing SeedDMS portals may have higher business impact.
Exploitation context
The provided bundle does not show KEV listing or active exploitation evidence. Exploitation requires social engineering or web content that reaches an authenticated SeedDMS user’s browser session. No CVSS score or CWE mapping is provided.
Researcher notes
Evidence is sparse: the CVE text identifies the endpoint, affected version ranges, and attack condition, but provides no CVSS, CWE, patch advisory details, or confirmed exploitation. Avoid assuming broader SeedDMS versions or impacts beyond unauthorized document locking.
Mitigation direction
- Upgrade SeedDMS beyond v5.1.23 or v6.0.16 affected thresholds where applicable.
- Check SeedDMS vendor guidance for the corrected release and any configuration notes.
- Restrict SeedDMS exposure to trusted networks where business requirements allow.
- Educate users not to browse untrusted links while authenticated to sensitive systems.
Validation and detection
- Inventory SeedDMS deployments and confirm exact application versions.
- Review whether /op/op.LockDocument.php exists on deployed instances.
- Confirm document-lock requests require CSRF protection in the installed version.
- Check logs for unusual document-lock activity correlated with user sessions.
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-2021-36542 mapping review
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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://medium.com/%40cyberdivision/cve-2021-36542-a07585497eb8CVE 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.