JVN#04485476
Multiple vulnerabilities in SOY series

Overview

SOY series provided by Tsuyoshi Saito contain multiple vulnerabilities.

Products Affected

CVE-2026-73827, CVE-2026-77838

• SOY Calendar ver 2.4.0 and earlier

• SOY CMS ver 3.24.0 and earlier

• SOY Gallery ver 2.0.0 and earlier

Description

SOY series provided by Tsuyoshi Saito contain multiple vulnerabilities listed below.

• Cross-site Scripting (CWE-79)
  • CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:A/VC:N/VI:N/VA:N/SC:L/SI:L/SA:N Base Score 4.8
  • CVSS:3.0/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N Base Score 5.4
  • CVE-2026-73827, CVE-2026-77838, CVE-2026-78238
• Deserialization of Untrusted Data (CWE-502)
  • CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N Base Score 9.3
  • CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H Base Score 9.8
  • CVE-2026-78032

Impact

• An arbitrary script may be executed on the web browser of the user who is logging in to the product (CVE-2026-73827, CVE-2026-77838, CVE-2026-78238).
• Arbitrary code may be executed by an attacker with the web server privileges (CVE-2026-78032).

Solution

Update the Software
Update the software to the latest version according to the information provided by the developer.