CVE-2026-6403
Description
The Quick Playground plugin for WordPress is vulnerable to Path Traversal in versions up to and including 1.3.3. This is due to insufficient path validation in the qckply_zip_theme() function, which appends a user-controlled 'stylesheet' parameter directly to the theme root directory path without sanitizing directory traversal sequences. This makes it possible for unauthenticated attackers to trigger the creation of a ZIP archive containing arbitrary files from the server's filesystem — including wp-config.
Predictions
Heuristic predictions, AS-IS, for prioritization only.
Mitigations
No mitigations published for this CVE yet.
The vendor-content worker queues fetches as references arrive (check back in a few minutes). Or — if you've already worked around this in production — publish your fix to the community-verified tier.
✚ Propose a mitigation on Community → Mitigations published via the community go through AI scoring + 2 human reviewers + 7-day silent objection window before landing here withsource_tier=community-verified.
References
- https://plugins.trac.wordpress.org/browser/quick-playground/tags/1.3.1/api.php#L62
- https://plugins.trac.wordpress.org/browser/quick-playground/tags/1.3.1/api.php#L631
- https://plugins.trac.wordpress.org/browser/quick-playground/tags/1.3.1/utility.php#L162
- https://plugins.trac.wordpress.org/browser/quick-playground/tags/1.3.1/utility.php#L248
- https://plugins.trac.wordpress.org/browser/quick-playground/trunk/api.php#L62
- https://plugins.trac.wordpress.org/browser/quick-playground/trunk/api.php#L631
- https://plugins.trac.wordpress.org/browser/quick-playground/trunk/utility.php#L162
- https://plugins.trac.wordpress.org/browser/quick-playground/trunk/utility.php#L248
- https://plugins.trac.wordpress.org/changeset?sfp_email=&sfph_mail=&reponame=&old=3514238%40quick-playground&new=3514238%40quick-playground&sfp_email=&sfph_mail=
- https://plugins.trac.wordpress.org/changeset?sfp_email=&sfph_mail=&reponame=&old=3523317%40quick-playground&new=3523317%40quick-playground&sfp_email=&sfph_mail=
- https://www.wordfence.com/threat-intel/vulnerabilities/id/a39dccb6-b635-44af-b0e0-c3010b719773?source=cve
CWEs
CWE-22
Community-verified mitigations for this CVE will appear above when contributors publish them.
Verify integrity in audit chain (admin only). AS-IS.