CVE-2023-1721

CRITICALNVD 9.19.1—Elevated

9.1

Yoga Class Registration System version 1.0 allows an administrator to execute commands on the server. This is possible because the application does not correctly validate the thumbnails of the classes uploaded by the administrators.

CVSS v3: 9.1
EG Score: 9.1(medium)
EPSS: 27.9%
KEV: Not listed

Published

June 24, 2023

Last Modified

November 21, 2024

References (4)

help@fluidattackshttps://fluidattacks.com/advisories/blessd/
help@fluidattackshttps://www.sourcecodester.com/php/16097/yoga-class-registration-system-php-and-mysql-free-source-code.html
af854a3a-2127-422b-91ae-364da2661108https://fluidattacks.com/advisories/blessd/
af854a3a-2127-422b-91ae-364da2661108https://www.sourcecodester.com/php/16097/yoga-class-registration-system-php-and-mysql-free-source-code.html

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 14× 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.

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Frequently asked(5)

What is CVE-2023-1721?

CVE-2023-1721 is a critical vulnerability published on June 24, 2023. Yoga Class Registration System version 1.0 allows an administrator to execute commands on the server. This is possible because the application does not correctly validate the thumbnails of the classes uploaded by the administrators.

When was CVE-2023-1721 disclosed?

CVE-2023-1721 was first published in the National Vulnerability Database on June 24, 2023, 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-2023-1721 actively exploited?

CVE-2023-1721 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 27.9% percentile likelihood of exploitation in the next 30 days — higher percentiles indicate greater predicted risk.

What is the CVSS score of CVE-2023-1721?

CVE-2023-1721 has a CVSS v3 base score of 9.1 (NVD).

How do I remediate CVE-2023-1721?

Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2023-1721, 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-2023-1721

📅 Published

🔄 Last Modified

🔗 References (4)

Weakness Classification(1)

Data Freshness Timeline

❓ Frequently asked(5)

Dependency Blast Radius

Is Your Infrastructure Affected by CVE-2023-1721?

🔗 Related CVEs(same CWE)

Same CWE

Published

Last Modified

References (4)

Frequently asked(5)

Related CVEs(same CWE)