CVE-2024-52399

CRITICALNVD 9.99.9—

9.9

Unrestricted Upload of File with Dangerous Type vulnerability in Clarisse K. Writer Helper writer-helper allows Upload a Web Shell to a Web Server.This issue affects Writer Helper: from n/a through <= 3.1.6.

CVSS v3: 9.9
EG Score: 9.9(medium)
EPSS: 69.3%
KEV: Not listed

Published

November 16, 2024

Last Modified

April 23, 2026

References (1)

audit@patchstackhttps://patchstack.com/database/Wordpress/Plugin/writer-helper/vulnerability/wordpress-writer-helper-plugin-3-1-6-arbitrary-file-upload-vulnerability?_s_id=cve

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 13× 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.

2026-06-06 13:46 UTCepss_batch
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Frequently asked(5)

What is CVE-2024-52399?

CVE-2024-52399 is a critical vulnerability published on November 16, 2024. Unrestricted Upload of File with Dangerous Type vulnerability in Clarisse K. Writer Helper writer-helper allows Upload a Web Shell to a Web Server.This issue affects Writer Helper: from n/a through <= 3.1.6.

When was CVE-2024-52399 disclosed?

CVE-2024-52399 was first published in the National Vulnerability Database on November 16, 2024, with the most recent update on April 23, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.

Is CVE-2024-52399 actively exploited?

CVE-2024-52399 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 69.3% percentile likelihood of exploitation in the next 30 days — higher percentiles indicate greater predicted risk.

What is the CVSS score of CVE-2024-52399?

CVE-2024-52399 has a CVSS v3 base score of 9.9 (NVD).

How do I remediate CVE-2024-52399?

Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2024-52399, 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.

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CVE-2024-52399

📅 Published

🔄 Last Modified

🔗 References (1)

Weakness Classification(1)

Data Freshness Timeline

❓ Frequently asked(5)

Dependency Blast Radius

Is Your Infrastructure Affected by CVE-2024-52399?

🔗 Related CVEs(same CWE)

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Published

Last Modified

References (1)

Frequently asked(5)

Related CVEs(same CWE)