CVE-2021-36532

HIGHNVD 8.18.1—

8.1

Race condition vulnerability discovered in portfolioCMS 1.0 allows remote attackers to run arbitrary code via fileExt parameter to localhost/admin/uploads.php.

CVSS v3: 8.1
EG Score: 8.1(medium)
EPSS: 71.3%
KEV: Not listed

Published

February 3, 2023

Last Modified

March 26, 2025

References (2)

cve@mitrehttps://github.com/excellentoldtv/portfolioCMS-issues/issues/1
af854a3a-2127-422b-91ae-364da2661108https://github.com/excellentoldtv/portfolioCMS-issues/issues/1

Weakness Classification(1)

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

CWE-362Concurrent Execution using Shared Resource with Improper Synchronization (Race Condition)

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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2026-05-26 07:17 UTCepss_batch
2026-05-26 07:17 UTCepss_batch

Frequently asked(5)

What is CVE-2021-36532?

CVE-2021-36532 is a high vulnerability published on February 3, 2023. Race condition vulnerability discovered in portfolioCMS 1.0 allows remote attackers to run arbitrary code via fileExt parameter to localhost/admin/uploads.php.

When was CVE-2021-36532 disclosed?

CVE-2021-36532 was first published in the National Vulnerability Database on February 3, 2023, with the most recent update on March 26, 2025. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.

Is CVE-2021-36532 actively exploited?

CVE-2021-36532 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 71.3% percentile likelihood of exploitation in the next 30 days — higher percentiles indicate greater predicted risk.

What is the CVSS score of CVE-2021-36532?

CVE-2021-36532 has a CVSS v3 base score of 8.1 (NVD).

How do I remediate CVE-2021-36532?

Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2021-36532, 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-2021-36532

📅 Published

🔄 Last Modified

🔗 References (2)

Weakness Classification(1)

Data Freshness Timeline

❓ Frequently asked(5)

Dependency Blast Radius

Is Your Infrastructure Affected by CVE-2021-36532?

🔗 Related CVEs(same CWE)

Same CWE

Published

Last Modified

References (2)

Frequently asked(5)

Related CVEs(same CWE)