CVE-2021-44892

HIGHNVD 8.88.8—

8.8

A Remote Code Execution (RCE) vulnerability exists in ThinkPHP 3.x.x via value[_filename] in index.php, which could let a malicious user obtain server control privileges.

CVSS v3: 8.8
EG Score: 8.8(medium)
EPSS: 83.9%
KEV: Not listed

Published

February 10, 2022

Last Modified

November 21, 2024

References (2)

cve@mitrehttps://github.com/Stakcery/Web-Security/issues/1
af854a3a-2127-422b-91ae-364da2661108https://github.com/Stakcery/Web-Security/issues/1

Patch Availability(1)

Vendor / Ecosystem	Fixed in / Patch	Released	Source
composer	topthink/framework	—	ghsa

Patches are aggregated from vendor advisories (Red Hat, Microsoft, Cisco, GitHub) and package ecosystems (OSV, GHSA). Multiple rows for the same upstream release have been deduplicated.

Affected Packages

(1 across 1 ecosystem)

Packagist(1)

Package	Vulnerable range	Fixed in	Dependents
topthink/framework	—	—	—

Data Freshness Timeline

(refreshed 11× in last 7d / 20× in last 30d)

Every time one of our enrichment pipelines (NVD, MITRE cvelistV5, EPSS, CISA KEV, GHSA, OSV, vendor advisories) ran against this CVE. Most recent first.

2026-06-02 20:11 UTCepss_batch
2026-06-02 20:11 UTCepss_batch
2026-06-01 13:50 UTCepss_batch
2026-06-01 13:50 UTCepss_batch
2026-05-31 22:29 UTCepss_batch
2026-05-31 22:29 UTCepss_batch
2026-05-31 00:15 UTCepss_batch
2026-05-31 00:15 UTCepss_batch
2026-05-29 13:42 UTCepss_batch
2026-05-28 13:43 UTCepss_batch
2026-05-28 13:43 UTCepss_batch
2026-05-27 13:39 UTCepss_batch
2026-05-27 13:39 UTCepss_batch
2026-05-26 13:42 UTCepss_batch
2026-05-26 13:42 UTCepss_batch
2026-05-26 07:17 UTCepss_batch
2026-05-26 07:17 UTCepss_batch
2026-05-26 07:17 UTCepss_batch
2026-05-26 03:18 UTCEG score recompute
2026-05-26 03:18 UTCGHSA enrichment

Frequently asked(5)

What is CVE-2021-44892?

CVE-2021-44892 is a high vulnerability published on February 10, 2022. A Remote Code Execution (RCE) vulnerability exists in ThinkPHP 3.x.x via value[_filename] in index.php, which could let a malicious user obtain server control privileges.

When was CVE-2021-44892 disclosed?

CVE-2021-44892 was first published in the National Vulnerability Database on February 10, 2022, with the most recent update on November 21, 2024. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.

Is CVE-2021-44892 actively exploited?

CVE-2021-44892 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 83.9% percentile likelihood of exploitation in the next 30 days — higher percentiles indicate greater predicted risk.

What is the CVSS score of CVE-2021-44892?

CVE-2021-44892 has a CVSS v3 base score of 8.8 (NVD).

How do I remediate CVE-2021-44892?

Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2021-44892, 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-2021-44892

📅 Published

🔄 Last Modified

🔗 References (2)

Patch Availability(1)

Affected Packages

Data Freshness Timeline

❓ Frequently asked(5)

Dependency Blast Radius

Is Your Infrastructure Affected by CVE-2021-44892?

🔗 Related CVEs(same product)

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Published

Last Modified

References (2)

Frequently asked(5)

Related CVEs(same product)