Security readout for executives and security teams
Plain-English summary
CVE-2021-26216 is a reported CSRF issue in SeedDMS 5.1.x affecting out.EditFolder.php. A logged-in user could potentially be tricked into submitting an unintended folder-edit request. Public data supplied here does not include CVSS, confirmed impact details, or a vendor fix.
Executive priority
Treat as a targeted application-risk item, not an emergency based on current evidence. Prioritize if SeedDMS 5.1.x is internet-accessible, widely used internally, or manages sensitive documents.
Technical view
The CVE record describes cross-site request forgery in SeedDMS 5.1.x at out.EditFolder.php. CSRF typically abuses a victim’s authenticated browser session to perform state-changing actions. The available source bundle does not provide affected subversions, prerequisites, proof of impact, or remediation details.
Likely exposure
Organizations running SeedDMS 5.1.x are the primary exposure group. Risk is higher where SeedDMS is reachable by many users and folder-edit permissions are broadly granted.
Exploitation context
No CISA KEV listing is indicated, and the provided sources do not state active exploitation. CSRF generally requires an authenticated user to be induced into interacting with attacker-controlled content.
Researcher notes
The public record is sparse: no CVSS, CWE, detailed version range, or vendor advisory is included in the provided bundle. The only named issue is CSRF in out.EditFolder.php for SeedDMS 5.1.x. Avoid assuming broader impact without additional vendor confirmation.
Mitigation direction
- Inventory SeedDMS instances and identify any 5.1.x deployments.
- Check SeedDMS vendor or maintainer guidance for fixed versions or patches.
- Limit access to SeedDMS to trusted networks or authenticated users where possible.
- Restrict folder-edit permissions to users with a business need.
- Review application configuration for CSRF protections on state-changing requests.
Validation and detection
- Confirm whether SeedDMS 5.1.x is deployed.
- Identify whether out.EditFolder.php is present and reachable.
- Review change-management logs for unexpected folder edits.
- Verify whether folder-edit requests enforce anti-CSRF controls.
- Document compensating controls until vendor remediation is confirmed.
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
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ATT&CK lookup starting points
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CVE-2021-26216 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.
Vulnerability timeline
Timeline events are normalized from CVE metadata, CNA source timelines, ADP timelines, and KEV metadata when present.
- CVE reservedCVE Program
The CVE ID was reserved by the assigning CNA.
- CVE publishedCVE Program
The CVE record was published.
- CVE updatedCVE Program
The CVE record metadata indicates this as the latest update time.
ADP provider summaries
Source materials
- CVE List V5 sourceCVE List V5
- https://tuhin1729.medium.com/cve-2021-26216-ffb33321dc91CVE reference, mitre
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.