Security readout for executives and security teams
Plain-English summary
FUEL CMS 1.4.6 is reported to allow remote arbitrary code execution through a crafted ZIP upload in the assets upload function. The sources do not provide a CVSS score, confirmed patch, or active exploitation evidence, but code execution risk can create serious business impact if exposed.
Executive priority
Treat this as a priority for any internet-facing FUEL CMS deployment because the reported impact is remote code execution. If no FUEL CMS 1.4.6 instance exists, downgrade after documented verification.
Technical view
The CVE maps to CWE-434 and describes unsafe handling of uploaded ZIP content in the upload function’s assets parameter. The reported outcome is arbitrary code execution by a remote attacker. Affected-product metadata is incomplete, so validation should rely on application inventory and the linked project issue.
Likely exposure
Most likely exposed systems are FUEL CMS 1.4.6 deployments where asset uploads are reachable by remote users or exposed administrative workflows. The source bundle lacks CPEs and normalized vendor/product data, so exposure cannot be assumed from scanners alone.
Exploitation context
The CVE source says remote arbitrary code execution is possible via a crafted ZIP file. CISA KEV status is false in the provided bundle, and no cited source confirms active exploitation in the wild.
Researcher notes
Evidence is thin: the CVE names FUEL CMS 1.4.6 and CWE-434, but affected metadata is listed as n/a and no CVSS is provided. Avoid claiming exploit maturity, patch availability, or broader version impact without additional vendor evidence.
Mitigation direction
- Identify any FUEL CMS 1.4.6 deployments and owners.
- Check the linked vendor issue and project guidance for fixes.
- Restrict asset upload access to trusted authenticated administrators.
- Remove public internet access to administrative upload workflows where feasible.
- Review upload directory permissions and execution controls.
- Monitor for unexpected uploaded archives or executable files.
Validation and detection
- Confirm whether FUEL CMS 1.4.6 is present in inventory.
- Verify whether the assets upload function is reachable remotely.
- Check whether upload access is limited to trusted roles.
- Review web and application logs for unusual upload activity.
- Inspect upload directories for unexpected ZIPs or executable content.
- Track the CVE and GitHub issue for remediation updates.
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.
CWE-434: File access and web shell behavior lookup
File traversal and upload weaknesses can lead teams to review file, web shell, execution, and collection telemetry. Open the exact CWE lookup page first, then review the ATT&CK searches from that MITRE weakness context. This is a Glexia lookup hint, not an official ATT&CK mapping.
Open ATT&CK lookupExecution behavior lookup
The CVE wording references code or command execution, so execution technique review may help defensive triage. This is a Glexia inferred lookup path, not an official MITRE, ATT&CK, or CVE Program mapping.
Open ATT&CK lookupCVE-2020-22151 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/daylightstudio/FUEL-CMS/issues/551CVE reference
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.
Unrestricted Upload of File with Dangerous Type
Unrestricted Upload of File with Dangerous Type represents a recurring weakness pattern that can create exploitable paths when design, validation, or implementation controls are missing.