What’s Vulnerable › Vulnerabilities
CVE-2026-14553: Zportals < 6.3.4 - Subscriber+ Arbitrary File Upload
- Severity: high (CVSS 8.1 v3.1)
- Exploited in the wild: not listed in CISA KEV
- EPSS: 0.6% probability of exploitation in the next 30 days
- Public exploit or detection template: none known
- Published: 2026-08-05 · updated 2026-08-26
- Weakness: CWE-434
Description
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.
Affected products
- zportals: before 6.3.4 — fixed in 6.3.4
How to fix
Upgrade to a fixed version: zportals 6.3.4. Check the vendor advisory for mitigations.
References
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