CVE-2020-26167

CRITICALNVD 9.89.8—

9.8

In FUEL CMS 11.4.12 and before, the page preview feature allows an anonymous user to take complete ownership of any account including an administrator one.

CVSS v3: 9.8
EG Score: 9.8(medium)
EPSS: 86.7%
KEV: Not listed

Published

November 4, 2020

Last Modified

May 30, 2025

References (9)

cve@mitrehttps://cds.thalesgroup.com/en/tcs-cert/CVE-2020-26167
cve@mitrehttps://excellium-services.com/cert-xlm-advisory/cve-2020-26167/
cve@mitrehttps://github.com/daylightstudio/FUEL-CMS/
cve@mitrehttps://thedaylightstudio.com/
cve@mitrehttps://www.getfuelcms.com/
af854a3a-2127-422b-91ae-364da2661108https://excellium-services.com/cert-xlm-advisory/cve-2020-26167/
af854a3a-2127-422b-91ae-364da2661108https://github.com/daylightstudio/FUEL-CMS/
af854a3a-2127-422b-91ae-364da2661108https://thedaylightstudio.com/
af854a3a-2127-422b-91ae-364da2661108https://www.getfuelcms.com/

Weakness Classification(1)

MITRE Common Weakness Enumeration — the root-cause categories this CVE belongs to.

CWE-200Exposure of Sensitive Information to an Unauthorized Actor

Data Freshness Timeline

(refreshed 15× in last 7d / 20× in last 30d)

Each row is a source pipeline that fetched or updated this CVE on that date, with what changed. For example, "NVD update" means NVD published or revised its analysis for this CVE; "MITRE cvelistV5" means we ingested or refreshed it from the CNA feed. Most recent first.

2026-06-08 14:15 UTCEPSS rescore
2026-06-08 14:15 UTCEPSS rescore
2026-06-07 15:23 UTCEPSS rescore
2026-06-07 15:23 UTCEPSS rescore
2026-06-07 14:00 UTCOSV refresh
2026-06-06 13:45 UTCEPSS rescore
2026-06-06 13:45 UTCEPSS rescore
2026-06-05 22:45 UTCEPSS rescore
2026-06-05 22:45 UTCEPSS rescore
2026-06-05 06:08 UTCEPSS rescore
2026-06-05 06:08 UTCEPSS rescore
2026-06-04 13:10 UTCEPSS rescore
2026-06-04 13:10 UTCEPSS rescore
2026-06-02 20:11 UTCEPSS rescore
2026-06-02 20:11 UTCEPSS rescore
2026-06-01 13:50 UTCEPSS rescore
2026-06-01 13:50 UTCEPSS rescore
2026-05-31 22:29 UTCEPSS rescore
2026-05-31 22:29 UTCEPSS rescore
2026-05-31 00:15 UTCEPSS rescore

Frequently asked(5)

What is CVE-2020-26167?

CVE-2020-26167 is a critical vulnerability published on November 4, 2020. In FUEL CMS 11.4.12 and before, the page preview feature allows an anonymous user to take complete ownership of any account including an administrator one.

When was CVE-2020-26167 disclosed?

CVE-2020-26167 was first published in the National Vulnerability Database on November 4, 2020, with the most recent update on May 30, 2025. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.

Is CVE-2020-26167 actively exploited?

CVE-2020-26167 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 86.7% percentile likelihood of exploitation in the next 30 days — higher percentiles indicate greater predicted risk.

What is the CVSS score of CVE-2020-26167?

CVE-2020-26167 has a CVSS v3 base score of 9.8 (NVD).

How do I remediate CVE-2020-26167?

Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2020-26167, EchelonGraph cross-links them in the Vendor Advisories panel below — those typically contain the canonical remediation steps, fixed version numbers, and any vendor-specific mitigations.

Dependency Blast Radius

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CVE-2020-26167

📅 Published

🔄 Last Modified

🔗 References (9)

Weakness Classification(1)

Data Freshness Timeline

❓ Frequently asked(5)

Dependency Blast Radius

Is Your Infrastructure Affected by CVE-2020-26167?

🔗 Related CVEs(same CWE)

Same CWE

Published

Last Modified

References (9)

Frequently asked(5)

Related CVEs(same CWE)