CVE-2026-2557 | THREATINT

Description

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.

PUBLISHED Reserved 2026-02-15 | Published 2026-02-16 | Updated 2026-02-23 | Assigner VulDB

MEDIUM: 5.1CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:P/VC:N/VI:L/VA:N/SC:N/SI:N/SA:N/E:P

LOW: 3.5CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:N/I:L/A:N/E:P/RL:X/RC:R

LOW: 3.5CVSS:3.0/AV:N/AC:L/PR:L/UI:R/S:U/C:N/I:L/A:N/E:P/RL:X/RC:R

4.0AV:N/AC:L/Au:S/C:N/I:P/A:N/E:POC/RL:ND/RC:UR

Problem types

Cross Site Scripting

Code Injection

Timeline

2026-02-15:	Advisory disclosed
2026-02-15:	VulDB entry created
2026-02-21:	VulDB entry last update

Credits

xcxr (VulDB User) reporter

References

vuldb.com/?id.346165 (VDB-346165 | cskefu File Upload MediaController.java upload cross site scripting) vdb-entry technical-description

vuldb.com/?ctiid.346165 (VDB-346165 | CTI Indicators (IOB, IOC, TTP, IOA)) signature permissions-required

vuldb.com/?submit.750729 (Submit #750729 | cskefu v8 Improper Input Validation) third-party-advisory

fx4tqqfvdw4.feishu.cn/docx/ZqvtdTniToQMw0xZL94cTpuTnac exploit

cve.org (CVE-2026-2557)

nvd.nist.gov (CVE-2026-2557)

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