CVE-2026-2557
MEDIUM WAF: High
CVSS 5.4
Published: 2026-02-16
CWE-79 CWE-94 CWE-79
A vulnerability was detected in cskefu up to 8.0.1. Impacted is the function Upload of the file com/cskefu/cc/controller/resource/MediaController.java of the component File Upload. The manipulation results in cross site scripting. The attack may be launched remotely. The exploit is now public and may be used. The vendor was contacted early about this disclosure but did not respond in any way.
WAF Coverage Analysis
Cross-Site Scripting (XSS)
High WAF Coverage
OWASP: A03:2021 Injection
941xxx - XSS / XXE
Code Injection
Medium WAF Coverage
OWASP: A03:2021 Injection
932xxx - Remote Code Execution 933xxx - PHP Injection 934xxx - Node.js / Generic Injection
Cross-Site Scripting (XSS)
High WAF Coverage
OWASP: A03:2021 Injection
941xxx - XSS / XXE
Affected Software
| Vendor | Product | Version |
|---|---|---|
| cskefu | cskefu | up to 8.0.1 |
References
- fx4tqqfvdw4.feishu.cn (Exploit, Third Party Advisory)
- vuldb.com (Permissions Required, VDB Entry)
- vuldb.com (Third Party Advisory, VDB Entry)
- vuldb.com (Third Party Advisory, VDB Entry)