Security readout for executives and security teams
Plain-English summary
In ownCloud versions before 10.8, a federated-share recipient who also has database access could increase their own share permissions. This is mainly a privilege escalation risk where a limited user or insider could gain broader access than intended.
Executive priority
Treat this as a targeted privilege-escalation issue rather than a broad internet-facing emergency. Prioritize upgrades and database access review for any ownCloud deployment below 10.8, especially in environments with sensitive shared files.
Technical view
The issue affects ownCloud before 10.8. A receiver of a federated share with database access could update stored permissions and elevate their own permissions. The sources do not provide CVSS, CWE, exploit details, or a broader affected-product matrix.
Likely exposure
Organizations running ownCloud before 10.8 are the relevant exposure group, especially where federated sharing is enabled and database access is available to users, operators, integrations, or compromised accounts.
Exploitation context
The source bundle does not show CISA KEV listing or active exploitation evidence. Exploitation appears to require both federated-share receiver status and access to the ownCloud database, which limits casual remote exposure.
Researcher notes
Evidence is sparse: the bundle provides a concise vulnerability description, release notes, and an advisory link, but no CVSS, CWE, proof of exploitation, or detailed affected-version table. Avoid assuming unauthenticated remote exploitation.
Mitigation direction
- Review the ownCloud advisory and release notes for version-specific guidance.
- Upgrade ownCloud installations running versions before 10.8.
- Restrict database access to necessary administrators and service accounts only.
- Review federated sharing configuration and disable it where not required.
- Audit privileged database users and integrations for least-privilege access.
Validation and detection
- Inventory all ownCloud deployments and confirm their exact versions.
- Identify deployments older than ownCloud 10.8.
- Check whether federated sharing is enabled on affected deployments.
- Review who or what can access the ownCloud database.
- Audit recent share-permission changes for unexpected escalation.
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.
Database behavior lookup
The CVE wording references database injection or access, so collection and exfiltration review may help. This is a Glexia inferred lookup path, not an official MITRE, ATT&CK, or CVE Program mapping.
Open ATT&CK lookupCVE-2021-35946 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://doc.owncloud.com/server/admin_manual/release_notes.htmlCVE reference · x_refsource_MISC
- https://owncloud.com/security-advisories/cve-2021-35946/CVE 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.