Quick Playground <= 1.3.3 - Unauthenticated Path Traversal to Arbitrary File Read via 'stylesheet' Parameter
Key facts
- Attack vector
- Network
- Privileges required
- None
- User interaction
- None
- Attack complexity
- Low
- Impact type
- Information disclosure
- Confidentiality · integrity · availability
- High · None · None
- Fix status
- No fix listed
Attack profile from CVSS 3.1 · CNA. Fix status from CNA. Impact type from CWE-22 and the CVSS impact.
Summary
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.
Why it matters now
SSVC decision points
CISA ADP · SSVC 2.0.3
- Exploitation
- None
- Automatable
- Yes
- Technical impact
- Partial
The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.
Affected products
| Vendor | Product | Affected versions | Fixed in | Status | Source |
|---|---|---|---|---|---|
| davidfcarr | Quick Playground | up to 1.3.3 | — | No fix listed | CNA |
- Quick Playground Vendordavidfcarr Affected up to 1.3.3 Fixed in — No fix listed CNA
Remediation
No fixed version listed by the sources yet.
Timeline
- 2026-10-02 Threatist record created from CVE-2026-6403
- 2026-10-03 Alias added: GHSA-5vxp-83xg-5c9f
References
Other 11
- https://www.wordfence.com/threat-intel/vulnerabilities/id/a39dccb6-b635-44af-b0e0-c3010b719773?source=cve
- https://plugins.trac.wordpress.org/browser/quick-playground/trunk/utility.php#L162
- https://plugins.trac.wordpress.org/browser/quick-playground/tags/1.3.1/utility.php#L162
- https://plugins.trac.wordpress.org/browser/quick-playground/trunk/api.php#L62
- https://plugins.trac.wordpress.org/browser/quick-playground/tags/1.3.1/api.php#L62
- https://plugins.trac.wordpress.org/browser/quick-playground/trunk/utility.php#L248
- 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#L631
- https://plugins.trac.wordpress.org/browser/quick-playground/tags/1.3.1/api.php#L631
- https://plugins.trac.wordpress.org/changeset?sfp_email=&sfph_mail=&reponame=&old=3523317%40quick-playground&new=3523317%40quick-playground&sfp_email=&sfph_mail=
- https://plugins.trac.wordpress.org/changeset?sfp_email=&sfph_mail=&reponame=&old=3514238%40quick-playground&new=3514238%40quick-playground&sfp_email=&sfph_mail=
More davidfcarr vulnerabilities
- TI-2022-01634 RSVPMaker <= 9.3.2 - Unauthenticated SQL Injection CVSS 3.1CRITICAL 9.8
- TI-2026-01505 Quick Playground <= 1.3.1 - Missing Authorization to Unauthenticated Arbitrary File Upload CVSS 3.1CRITICAL 9.8
- TI-2022-01328 RSVPMaker <= 9.2.5 - Unauthenticated SQL Injection CVSS 3.1CRITICAL 9.8
- TI-2022-01378 RSVPMaker <= 9.2.6 - Unauthenticated SQL Injection CVSS 3.1CRITICAL 9.8
- TI-2023-22077 WordPress RSVPMarker Plugin <= 10.6.6 is vulnerable to SQL Injection CVSS 3.1CRITICAL 9.8
- TI-2024-33960 WordPress RSVPMaker for Toastmasters plugin <= 6.2.4 - Arbitrary File Upload vulnerability CVSS 3.1CRITICAL 10.0
Sources
- CVE-2026-6403 · CVE Program
- CVE-2026-6403 · NVD
- FIRST EPSS
- GHSA-5vxp-83xg-5c9f · GitHub Advisory Database · CC BY 4.0
This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences