WordPress security changelog
MEDIUM CVE-2026-15420 Deferred

Nexter Blocks plus_name traversal lets subscribers delete assets

A subscriber with a valid public tpgb-addons nonce can call the tpda_purge_current_clear AJAX action and place traversal in plus_name. Vulnerable code passes that value into remove_current_page_dir_files(), appends .min.css or .min.js and deletes the resulting path, allowing unintended plugin or theme assets to be removed. The CNA lists 5.0.0 as affected although the current official 5.0.0 package already contains capability and allowlist checks.

CVE / CNA score 4.3 CVSS 3.1 · security@wordfence.com
NVD score Pending NVD has not published its own CVSS assessment.
Component
Nexter Blocks – Gutenberg Blocks, Page Builder & AI Website Builder
Plugin slug
the-plus-addons-for-block-editor
Affected
<= 5.0.0
Safe version
> 5.0.0
Published
Jul 24, 2026
Weakness
CWE-22 — Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal')

This CVE was published Jul 24, 2026 and is one of 10 known issues for this plugin.

What to do

Update, patch or deactivate.

Use a release newer than 5.0.0 while the CNA range discrepancy remains unresolved. The small application backport is to require manage_options for tpda_purge_current_clear and reject plus_name unless it matches ^[A-Za-z0-9_-]+$ before constructing any path. Restore deleted assets from known-good packages or backups.

A safe version is available, so updating to that version or later is the preferred remediation. If an immediate update is not practical, consider a targeted application patch or temporarily restricting the affected functionality.

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 Nexter Blocks – Gutenberg Blocks, Page Builder & AI Website Builder plugin for WordPress is vulnerable to Directory Traversal in all versions up to, and including, 5.0.0 via the 'plus_name' parameter. This makes it possible for authenticated attackers, with subscriber-level access and above, to delete arbitrary JS/CSS files on the server, which can lead to denial of service or destruction of critical plugin and theme assets.

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

References

Primary and upstream sources