Security readout for executives and security teams
Plain-English summary
Older CloverDX versions contain a cross-site scripting issue in the Simple HTTP API. An attacker could inject script or HTML through the sessionToken parameter. The public record says the issue is fixed in 5.9.1 and 5.10, but does not provide CVSS, CWE, or confirmed exploitation evidence.
Executive priority
Prioritize remediation for internet-facing or broadly accessible CloverDX deployments. For internally isolated systems, handle through the next planned patch cycle, while confirming API exposure and compensating controls.
Technical view
CVE-2021-30133 is an XSS vulnerability affecting CloverDX Server 5.9.0, CloverDX 5.8.1, CloverDX 5.7.0, and earlier. The injection point is the sessionToken parameter across multiple Simple HTTP API methods. Available metadata does not include affected CPEs, CVSS scoring, or detailed exploit prerequisites.
Likely exposure
Exposure is most likely where vulnerable CloverDX versions are still deployed and the Simple HTTP API is reachable by users, partners, or the internet. The source bundle does not identify affected deployment defaults or authentication requirements.
Exploitation context
The provided sources do not show CISA KEV listing or confirmed active exploitation. Treat this as a web application XSS risk with incomplete public exploitation detail, not as a known exploited vulnerability.
Researcher notes
The public record gives the vulnerable parameter and fixed versions but lacks CVSS, CWE, CPEs, exploit prerequisites, and proof-of-concept detail. Avoid assuming exploitability beyond XSS injection through sessionToken in multiple Simple HTTP API methods.
Mitigation direction
- Upgrade affected CloverDX installations to 5.9.1 or 5.10 or later.
- Review CloverDX release notes and vendor guidance for environment-specific instructions.
- Limit Simple HTTP API access to trusted networks where feasible.
- Apply normal web logging and alerting around unusual sessionToken input.
Validation and detection
- Inventory CloverDX Server and CloverDX versions across all environments.
- Confirm whether versions are 5.9.0, 5.8.1, 5.7.0, or earlier.
- Check whether the Simple HTTP API is enabled and reachable.
- Verify upgraded systems report 5.9.1, 5.10, or later.
- Review relevant HTTP logs for unusual sessionToken parameter content.
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-2021-30133 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://support.cloverdx.com/releases/CVE reference · x_refsource_MISC
- https://support1.cloverdx.com/hc/en-us/articles/360021006520CVE 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.