What is CVE-2026-2557?

CVE-2026-2557 is a low-severity vulnerability in Cskefu, classified under Cross-site Scripting. CVSS score: 3.5/10. Published 2026-02-16.

How severe is CVE-2026-2557?

Low severity. CVSS v3 base score is 3.5 out of 10.

RCE in Cskefu

CVE-2026-2557

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.

Vulnerability class: XSS (Cross-Site Scripting)

EPSS: 0.002 (13.3th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 3.5 (Low). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:N/I:L/A:N.

Affected products

Cskefu
N/a Cskefu — versions 8.0.0, 8.0.1

Weakness classification (CWE)

References

cna@vuldb.com (technical-description, VDB Entry, Third Party Advisory, vdb-entry)
cna@vuldb.com (signature, Permissions Required, permissions-required, VDB Entry)
cna@vuldb.com (VDB Entry, Third Party Advisory, third-party-advisory)
cna@vuldb.com (Exploit, Third Party Advisory, exploit)

Frequently asked questions

What is CVE-2026-2557?: CVE-2026-2557 is a low-severity vulnerability in Cskefu, classified under Cross-site Scripting. CVSS score: 3.5/10. Published 2026-02-16.
How severe is CVE-2026-2557?: Low severity. CVSS v3 base score is 3.5 out of 10.