Race condition vulnerability discovered in portfolioCMS 1.0 allows remote attackers to run arbitrary code via fileExt parameter to localhost/admin/uploads.php.
CVE-2021-36532
HIGHNVD 8.18.1—
EchelonGraph scoreMEDIUM confidence
Score 8.1 from GitHub Security Advisory (severity: HIGH) published 2023-02-03. NVD baseline CVSS 8.1; sources differ by 0.0.
Triggered by: GitHub Security Advisory CVSS
Sources: epss, ghsa, nvd
8.1EG
EchelonGraph verdictPlan a fixSerious severity, but no confirmed exploitation yet.
- High severity, but no confirmed exploitation yet
CISA-KEV: Not listedEPSS PROB: 1%CVSS: 8.1Exploit: None knownExposed: 0
No vendor fix yet — apply a workaround or compensating control (WAF / firewall / segmentation) and watch for a patch.
- CVSS v3
- 8.1
- EG Score
- 8.1(medium)
- EG Risk
- 37(Track)EG Risk 37/100SSVC: Track
EG Risk is EchelonGraph's 0–100 priority score: it fuses intrinsic severity with real-world exploitation and automatability so you can rank equal-severity CVEs and fix the most dangerous first. Higher = act sooner. Distinct from the 0–10 EG Score (severity).
How it’s computedSeverity81% × 45%Exploitation1% × 40%Automatability0% × 15%Action: Routine — remediate on your standard cadence. - EPSS PROB
- 1%
- EPSS %ILE
- 55%
- 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
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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 1% probability of exploitation in the next 30 days, which ranks it in the top 45.3% of all scored CVEs.
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
Explore the affected products and dependency analysis for CVE-2021-36532
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