Security readout for executives and security teams
Plain-English summary
CVE-2020-26167 is an account-takeover flaw in FUEL CMS 11.4.12 and earlier. The provided description says the page preview feature can let an anonymous user take ownership of any account, including an administrator account. If an exposed site runs an affected version, business risk is high because administrative control may be lost.
Executive priority
Treat this as urgent for any exposed FUEL CMS installation. Anonymous administrator account takeover can lead to site compromise, content tampering, and operational disruption. Priority can be lowered only after confirming the organization does not run affected versions or has vendor-supported remediation in place.
Technical view
The CVE record describes improper account ownership control through FUEL CMS page preview. The source bundle does not provide CVSS, CWE mapping, detailed affected CPEs, exploit status, or a confirmed fixed version. Impact is framed as anonymous takeover of arbitrary accounts, including administrators, on versions 11.4.12 and before.
Likely exposure
Exposure is most likely where FUEL CMS 11.4.12 or earlier is internet-accessible and the page preview feature is reachable anonymously. The bundle lists product metadata incompletely, so teams should confirm deployments by asset inventory, application fingerprints, and vendor records.
Exploitation context
The bundle does not show CISA KEV listing or cited active exploitation evidence. Public references include advisory and vendor/project URLs, but the supplied data does not include proof-of-concept status, attack prevalence, or exploitation timelines.
Researcher notes
Evidence is thin in the supplied bundle: no CVSS vector, CWE, CPE, fixed version, or exploit details are provided. The strongest claim is the CVE description itself: anonymous ownership takeover via page preview in FUEL CMS 11.4.12 and before. Avoid assuming broader products or active exploitation.
Mitigation direction
- Identify all FUEL CMS deployments and versions.
- Review vendor and advisory guidance for fixed releases or supported mitigations.
- Restrict public access to affected CMS preview and administration paths where feasible.
- Prioritize remediation for internet-facing or business-critical sites.
- Monitor authentication and account ownership changes for suspicious activity.
Validation and detection
- Confirm whether any deployment runs FUEL CMS 11.4.12 or earlier.
- Check whether page preview is reachable without authentication.
- Review CMS account ownership and administrator membership for unexpected changes.
- Verify remediation against vendor guidance, not unverified third-party fixes.
- Document exposed routes and compensating controls for vulnerability management tracking.
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-2020-26167 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://excellium-services.com/cert-xlm-advisory/cve-2020-26167/CVE reference
- https://www.getfuelcms.com/CVE reference
- https://github.com/daylightstudio/FUEL-CMS/CVE reference
- https://thedaylightstudio.com/CVE reference
- https://cds.thalesgroup.com/en/tcs-cert/CVE-2020-26167CVE 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.