CVE-2021-36461

HIGHNVD 8.88.8—

8.8

An Arbitrary File Upload vulnerability exists in Microweber 1.1.3 that allows attackers to getshell via the Settings Upload Picture section by uploading pictures with malicious code, user.ini.

CVSS v3: 8.8
EG Score: 8.8(medium)
EPSS: 58.0%
KEV: Not listed

Published

July 15, 2022

Last Modified

November 21, 2024

References (2)

cve@mitrehttps://github.com/microweber/microweber/issues/751
af854a3a-2127-422b-91ae-364da2661108https://github.com/microweber/microweber/issues/751

Weakness Classification(1)

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

CWE-434Unrestricted Upload of File with Dangerous Type

Data Freshness Timeline

(refreshed 12× 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.

2026-06-04 13:10 UTCepss_batch
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2026-06-02 20:11 UTCepss_batch
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2026-05-29 13:42 UTCepss_batch
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2026-05-26 07:17 UTCepss_batch
2026-05-26 07:17 UTCepss_batch

Frequently asked(5)

What is CVE-2021-36461?

CVE-2021-36461 is a high vulnerability published on July 15, 2022. An Arbitrary File Upload vulnerability exists in Microweber 1.1.3 that allows attackers to getshell via the Settings Upload Picture section by uploading pictures with malicious code, user.ini.

When was CVE-2021-36461 disclosed?

CVE-2021-36461 was first published in the National Vulnerability Database on July 15, 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-2021-36461 actively exploited?

CVE-2021-36461 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 58.0% percentile likelihood of exploitation in the next 30 days — higher percentiles indicate greater predicted risk.

What is the CVSS score of CVE-2021-36461?

CVE-2021-36461 has a CVSS v3 base score of 8.8 (NVD).

How do I remediate CVE-2021-36461?

Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2021-36461, 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-2021-36461

📅 Published

🔄 Last Modified

🔗 References (2)

Weakness Classification(1)

Data Freshness Timeline

❓ Frequently asked(5)

Dependency Blast Radius

Is Your Infrastructure Affected by CVE-2021-36461?

🔗 Related CVEs(same CWE)

Same CWE

Published

Last Modified

References (2)

Frequently asked(5)

Related CVEs(same CWE)