Published:2026/11/05  Last Updated:2026/11/05

JVN#55454512
Multiple vulnerabilities in SHIRASAGI

Overview

SHIRASAGI provided by SHIRASAGI Project contains multiple vulnerabilities.

Products Affected

CVE-2026-117679

  • SHIRASAGI versions from v1.12.0 to v1.21.0
CVE-2026-118869
  • SHIRASAGI versions from v1.19.0 to v1.21.0

Description

SHIRASAGI provided by SHIRASAGI Project contains multiple vulnerabilities listed below:

  • Cross-site Scripting (CWE-79) 
    • CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:P/VC:N/VI:N/VA:N/SC:L/SI:L/SA:N Base Score 5.1
    • CVSS:3.0/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N Base Score 5.4
    • CVE-2026-117679
  • OS Command Injection (CWE-78)
    • CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N Base Score 8.7
    • CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H Base Score 8.8
    • CVE-2026-118869

Impact

  • Arbitrary script may be executed in a user's web browser when the user accesses a website using the affected product (CVE-2026-117679).
  • Arbitrary OS commands may be executed on the system running the product (CVE-2026-118869).

Solution

Update the software
Update the software to the latest version according to the information provided by the developer.
The developer has released the following version that addresses these vulnerabilities.

  • SHIRASAGI v1.21.1

Vendor Status

Vendor Link
SHIRASAGI Project JVN#55454512 Cross-Site Scripting and OS Command Injection Vulnerabilities in SHIRASAGI (Text in Japanese)

References

JPCERT/CC Addendum

Vulnerability Analysis by JPCERT/CC

Credit

Yuto Sato of Department of Industrial and Systems Engineering, Faculty of Science and Technology, Tokyo University of Science reported these vulnerabilities to IPA.
JPCERT/CC coordinated with the developer under Information Security Early Warning Partnership.

Other Information

JPCERT Alert
JPCERT Reports
CERT Advisory
CPNI Advisory
TRnotes
CVE CVE-2026-117679
CVE-2026-118869
JVN iPedia