CVE-2025-53345 HIGH

CVE-2025-53345: WordPress Thim Core plugin <= 2.3.3 - Arbitrary Plugin Installation vulnerability

Vendor Thimpress

Product Thim Core

Weakness CWE-862 · Missing authorization

Published June 2, 2026

Last update June 2, 2026

View on NVD All CVEs

CVSS base score

8.8/10

Attack vector Network

Attack complexity Low

Privileges required Low

User interaction None

Confidentiality High

Integrity High

CVSS vector

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

What the vulnerability does

01Description

Missing Authorization vulnerability leading to code execution after installing malicious vulnerable plugin in ThimPress Thim Core. This issue affects Thim Core: from n/a through 2.3.3.

Explanation of Vulnerability in Simple Terms

02Summary

Thim Core versions up to 2.3.3 lack proper authorization checks, allowing authenticated users to perform actions they should not have access to. An attacker with a low-privilege account can read, modify, or delete sensitive data and functionality. The vulnerability requires a valid user login but no additional interaction. Site administrators should update immediately to a version newer than 2.3.3.

What an attacker can do

03Attacker Capabilities

Read, modify, or delete data and functionality they should not have access to.

Potential impact on your site

04Site Impact

Unauthorized users can access or alter sensitive site data and settings without proper permission.

Conditions required to exploit

05Prerequisites

Valid user account with low-level privileges; network access to the site.

Key dates

06Disclosure timeline

June 2, 2026 CVE published

June 2, 2026 Record updated

External resources

07References

NVD — National Vulnerability Database https://nvd.nist.gov/vuln/detail/CVE-2025-53345 CWE — Common Weakness Enumeration https://cwe.mitre.org/data/definitions/862.html AskarLabs — CWE-862 write-up Missing Authorization

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