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Case File

CVE-2023-4521

CRITICAL · CVSS 9.8 EPSS 39.29% Public Exploit

Source: NVD + CISA KEV + EPSS (historical backfill) · Published 2023-09-25 · Last synced 2026-08-04

CyberRota Analysis

This is a critical severity vulnerability with a CVSS score of 9.8. It affects WordPress. Public exploit code or proof-of-concept references have been detected in its references. Its EPSS score suggests a 39.3% probability of exploitation in the next 30 days. Exploitation may require the attacker to be authenticated.

Public Exploit Signal

A public exploit, PoC, GitHub repository or Metasploit reference was detected for this CVE.

Detected Signals
poc

Note: these links are listed for security research and verification purposes only.

CVE
CVE-2023-4521
Severity
CRITICAL
CVSS
9.8
EPSS
39.29%
WordPress

Original NVD Description

The Import XML and RSS Feeds WordPress plugin before 2.1.5 contains a web shell, allowing unauthenticated attackers to perform RCE. The plugin/vendor was not compromised and the files are the result of running a PoC for a previously reported issue (https://wpscan.com/vulnerability/d4220025-2272-4d5f-9703-4b2ac4a51c42) and not deleting the created files when releasing the new version.

Related CVEs

Other vulnerabilities affecting the same vendor(s)