SOY Calendar contains a cross-site scripting vulnerability. An arbitrary script may be executed on the web browser of the user who is logging in to the product.

Metrics

Attack Vector Network

Attack Complexity Low

Privileges Required Low

Attack Requirements None

User Interaction Active

Vulnerable System Confidentiality Impact None

Vulnerable System Integrity Impact None

Vulnerable System Availability Impact None

Subsequent System Confidentiality Impact Low

Subsequent System Integrity Impact Low

Subsequent System Availability Impact None

No CVSS v3.1

Attack Vector Network

Attack Complexity Low

Privileges Required Low

Scope Changed

Confidentiality Impact Low

Integrity Impact Low

Availability Impact None

User Interaction Required

No CVSS v2

This CVE is not in the KEV list.

Key SSVC decision points have not yet been added.

Affected Vendors & Products

Vendors Products
Saitodev
  • Soy Calendar

No data.

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References
Link Providers
https://jvn.jp/en/jp/JVN04485476/ cve-icon cve-icon
https://saitodev.co/article/7105 cve-icon cve-icon
History

Fri, 28 Aug 2026 17:30:00 +0000

Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'no', 'Exploitation': 'none', 'Technical Impact': 'partial'}, 'version': '2.0.3'}

Fri, 28 Aug 2026 16:45:00 +0000

Type Values Removed Values Added
First Time appeared Saitodev
Saitodev soy Calendar
Vendors & Products Saitodev
Saitodev soy Calendar

Fri, 28 Aug 2026 15:15:00 +0000

Type Values Removed Values Added
Title Cross‑Site Scripting in SOY Calendar Allows Arbitrary Script Execution for Authenticated Users

Fri, 28 Aug 2026 07:30:00 +0000

Type Values Removed Values Added
Description SOY Calendar contains a cross-site scripting vulnerability. An arbitrary script may be executed on the web browser of the user who is logging in to the product.
Weaknesses CWE-79
References
Metrics cvssV3_0

{'score': 5.4, 'vector': 'CVSS:3.0/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N'}

cvssV4_0

{'score': 4.8, 'vector': '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'}
cve-icon MITRE

Status: PUBLISHED

Assigner: jpcert

Published: 2026-08-28T06:10:58.005Z

Updated: 2026-08-28T16:12:47.204Z

Reserved: 2026-08-24T04:26:29.600Z

Link: CVE-2026-77838

cve-icon Vulnrichment

Updated: 2026-08-28T16:12:40.643Z

cve-icon NVD

Status : Deferred

Published: 2026-08-28T08:16:41.680

Modified: 2026-08-28T20:19:56.280

Link: CVE-2026-77838

cve-icon Redhat

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