CVE-2023-47842 CRITICAL

CVE-2023-47842: WordPress CataBlog plugin <= 1.7.0 - Arbitrary File Upload vulnerability

Vendor Zachary Segal

Product CataBlog

Weakness CWE-434 · Unrestricted file upload

Published March 26, 2024

Last update April 28, 2026

View on NVD All CVEs

CVSS base score

9.1/10

Attack vector Network

Attack complexity Low

Privileges required High

User interaction None

Confidentiality High

Integrity High

CVSS vector

CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:C/C:H/I:H/A:H

What the vulnerability does

01Description

Unrestricted Upload of File with Dangerous Type vulnerability in Zachary Segal CataBlog.This issue affects CataBlog: from n/a through 1.7.0.

Explanation of Vulnerability in Simple Terms

02Summary

CataBlog versions up to 1.7.0 allow authenticated administrators to upload files without proper validation. An attacker with admin privileges can upload malicious files that may affect the confidentiality, integrity, and availability of the site and potentially other systems. The vulnerability requires high-level access but has broad impact due to changed scope.

What an attacker can do

03Attacker Capabilities

Upload malicious files to the site with admin access, potentially compromising the site and connected systems.

Potential impact on your site

04Site Impact

A compromised admin account can upload files that damage site integrity, expose data, or disrupt service.

Conditions required to exploit

05Prerequisites

Attacker must have administrator-level privileges on the CataBlog installation.

Key dates

06Disclosure timeline

March 26, 2024 CVE published

April 28, 2026 Record updated

External resources

07References

NVD — National Vulnerability Database https://nvd.nist.gov/vuln/detail/CVE-2023-47842 CWE — Common Weakness Enumeration https://cwe.mitre.org/data/definitions/434.html AskarLabs — CWE-434 write-up Unrestricted Upload of File with Dangerous Type

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