WordPress security changelog
MEDIUM CVE-2025-13725 Deferred

Gutenberg Thim Blocks – Page Builder, Gutenberg Blocks for the Block Editor: Filesystem traversal

Gutenberg Thim Blocks – Page Builder, Gutenberg Blocks for the Block Editor is affected by filesystem traversal. Exploitation requires at least contributor-level access. A crafted path can escape the intended directory and reach files or directories elsewhere on the server.

CVE / CNA score 6.5 CVSS 3.1 · security@wordfence.com
NVD score Pending NVD has not published its own CVSS assessment.
Component
Gutenberg Thim Blocks – Page Builder, Gutenberg Blocks for the Block Editor
Plugin slug
thim-blocks
Affected
See vendor advisory
Safe version
See mitigation notes
Published
Jan 17, 2026
Weakness
CWE-22 — Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal')

This CVE was published Jan 17, 2026 and is one of 1 known issue for this plugin.

What to do

Update, patch or deactivate.

Update Gutenberg Thim Blocks – Page Builder, Gutenberg Blocks for the Block Editor to a release outside the affected range, or disable and remove it until a fixed version is available.

No confirmed safe version is listed. Consider a vendor-supported patch or temporarily restricting the affected functionality while you assess the risk.

Deactivate only when warranted by your risk profile, or when advised by your hosting provider in the limited circumstances where the vulnerability cannot otherwise be mitigated. If you’re unsure which action is appropriate, contact Fused or your hosting provider for guidance.

Source record

Technical description

The Gutenberg Thim Blocks – Page Builder, Gutenberg Blocks for the Block Editor plugin for WordPress is vulnerable to arbitrary file reads in all versions up to, and including, 1.0.1. This is due to insufficient path validation in the server-side rendering of the thim-blocks/icon block. This makes it possible for authenticated attackers, with Contributor-level access and above, to read the contents of arbitrary files on the server via the 'iconSVG' parameter, which can contain sensitive information such as wp-config.php.

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

References

Primary and upstream sources