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Vulnerability record · CVE-2021-47965 · published 15 May 2026

CVE-2021-47965: Unrestricted file upload vulnerability

WordPress Plugin WP Super Edit 2.5.4 and earlier contains an unrestricted file upload vulnerability in the FCKeditor component that allows attackers to upload dangerous file types without validation. Attackers can upload arbitrary files through the filemanager upload endpoint to achieve remote code execution and complete system compromise.

9.3 CVSS 4.0 Critical EPSS 0.60% · top 53.5% CWE-434 · Unrestricted file upload Deferred
9.3CVSS 4.0 base score
0.60%EPSS exploitation probability, 30 days
NoNot in CISA KEV
0Affected product versions listed by NVD
4References
17 Jun 2026Last modified by NVD

Description

WordPress Plugin WP Super Edit 2.5.4 and earlier contains an unrestricted file upload vulnerability in the FCKeditor component that allows attackers to upload dangerous file types without validation. Attackers can upload arbitrary files through the filemanager upload endpoint to achieve remote code execution and complete system compromise.

CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:

References

LinkTags
https://wordpress.org
https://wordpress.org/plugins/wp-super-edit/
https://www.exploit-db.com/exploits/49839
https://www.vulncheck.com/advisories/wordpress-plugin-wp-super-edit-unrestricted-file-upload

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Same products first, then exploited flaws of the same weakness class.

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Source: NIST National Vulnerability Database (record CVE-2021-47965), CISA KEV, FIRST EPSS (scores of 2026-09-26). This page is refreshed as NVD updates the record.