Auth bypass in Thimpress Thim Core

CVE-2025-53345

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.

Vulnerability class: Broken Access Control

Published · last modified .

CVSS v3 metric

CVSS v3 base score 8.8 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H.

EPSS exploit prediction

EPSS: 0.003 (19.7th percentile), scored .

Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 20th percentile — 19.7% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS trend (30 days)EPSS over the last 30 days for CVE-2025-53345: held from 0.003 to 0.003.

EPSS over last 30 days · oldest: 0.003 · newest: 0.003 · change: 0.000

Affected products

Weakness classification (CWE)

References

Frequently asked questions

What is CVE-2025-53345?
CVE-2025-53345 is a high-severity vulnerability in Thimpress Thim Core, classified under Missing Authorization. CVSS score: 8.8/10. Published 2026-06-02.
How severe is CVE-2025-53345?
High severity. CVSS v3 base score is 8.8 out of 10.