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CVE-2025-58576

MEDIUM
5.1
CVSS Score
Published: December 12, 2025 at 05:02 AM UTC
Updated: October 7, 2026 at 08:10 PM UTC
2 products affected across 2 vendorsGroupsessionGroupSession

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Severity
MEDIUM5.1
Exploit prediction
EPSS 0.1%
SSVC
No known exploit

Description

Cross-site request forgery vulnerability exists in GroupSession Free edition prior to ver5.3.0, GroupSession byCloud prior to ver5.3.3, and GroupSession ZION prior to ver5.3.2. If a user accesses a malicious page while logged in, unintended operations may be performed.

Affected

Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.

Groupsession· Groupsession
95%
v < 5.3.0v < 5.3.2v < 5.3.3
GroupSession· Japan Total System
60%
v < er5.3.0v < er5.3.2v < er5.3.3
Affected range stops below er5.3.0, so it looks safe — our inference, not a vendor statement
Affected range stops below er5.3.2, so it looks safe — our inference, not a vendor statement
Affected range stops below er5.3.3, so it looks safe — our inference, not a vendor statement

Remediation

No guide yet

No remediation guidance has been written for this CVE yet. What the record does show:

Patch and advisory references

References (2)

Vendor Advisory
Source: cverecord
https://groupsession.jp/info/info-news/security20251208
Third Party Advisory
Source: cverecord
https://jvn.jp/en/jp/JVN19940619/

SSVC — Action Prioritization

SSVCNo known exploitNot automatablePartial impact

SSVC signals action urgency (what to patch first), separate from CVSS which measures severity.

CVSS

5.1MEDIUMjpcert
Vector?

Quick Info

StatusANALYZED
CWE
CWE-352

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