Zportals < 6.3.4 - Subscriber+ Arbitrary File Upload
Priority HIGH 70CWE-434Published · Updated
Key facts
- Attack vector
- Network
- Privileges required
- Low
- User interaction
- None
- Attack complexity
- Low
- Impact type
- Code execution
- Confidentiality · integrity · availability
- High · High · None
- Fix status
- Fixed
Attack profile from CVSS 3.1 · CISA ADP. Fix status from CNA. Impact type from CWE-434.
Summary
The zportals WordPress plugin before 6.3.4 does not properly validate uploaded files, trusting the client-supplied content type and preserving the original file extension, allowing any authenticated user (Subscriber or higher) to upload arbitrary PHP files and achieve remote code execution.
Why it matters now
Exploitation Proof of concept CISA SSVC · not in CISA KEV
EPSS 0.0061 49th percentileScored 2026-11-07
Public exploit Yes 1 exploit referenceTagged by the CNA
Fix Fixed zportals (Unknown): 6.3.4
SSVC decision points
CISA ADP · SSVC 2.0.3
- Exploitation
- Poc
- Automatable
- No
- Technical impact
- Total
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 |
|---|---|---|---|---|---|
| Unknown | zportals | before 6.3.4 | 6.3.4 | Patch available | CNA |
- zportals VendorUnknown Affected before 6.3.4 Fixed in 6.3.4 Patch available CNA
Remediation
- Fix · CNA zportals (Unknown) Fixed in 6.3.4
Timeline
- 2026-10-02 Threatist record created from CVE-2026-14553
- 2026-10-03 Alias added: GHSA-h6gx-qwm9-7g7p
References
Sources
- CVE-2026-14553 · CVE Program
- CVE-2026-14553 · NVD
- FIRST EPSS
- GHSA-h6gx-qwm9-7g7p · 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