CVE-2025-61987 — MEDIUM (5.3)

Q: How severe is CVE-2025-61987?

CVE-2025-61987 has been rated MEDIUM with a CVSS base score of 5.3/10. Review the CVSS metrics above for detailed severity breakdown.

Q: Is there a patch for CVE-2025-61987?

Check the references section above for vendor advisories and patch information. Affected products include: Groupsession Groupsession.

Vulnerability Description

GroupSession Free edition prior to ver5.3.0, GroupSession byCloud prior to ver5.3.3, and GroupSession ZION prior to ver5.3.2. do not validate origins in WebSockets. If a user accesses a crafted page, Chat information sent to the user may be exposed.

CVSS Score

5.3

MEDIUM

CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

NONE

User Interaction

NONE

Scope

UNCHANGED

Confidentiality

LOW

Integrity

NONE

Availability

NONE

Affected Products

Vendor	Product	Versions
Groupsession	Groupsession	< 5.3.0

Related Weaknesses (CWE)

CWE-1385

References

https://groupsession.jp/info/info-news/security20251208Vendor Advisory
https://jvn.jp/en/jp/JVN19940619/Third Party Advisory

FAQ

What is CVE-2025-61987?

CVE-2025-61987 is a vulnerability with a CVSS score of 5.3 (MEDIUM). GroupSession Free edition prior to ver5.3.0, GroupSession byCloud prior to ver5.3.3, and GroupSession ZION prior to ver5.3.2. do not validate origins in WebSockets. If a user accesses a crafted page, ...

How severe is CVE-2025-61987?

CVE-2025-61987 has been rated MEDIUM with a CVSS base score of 5.3/10. Review the CVSS metrics above for detailed severity breakdown.

Is there a patch for CVE-2025-61987?

Check the references section above for vendor advisories and patch information. Affected products include: Groupsession Groupsession.