CVE-2025-64781

Description

In GroupSession Free edition prior to ver5.7.1, GroupSession byCloud prior to ver5.7.1, and GroupSession ZION prior to ver5.7.1, "External page display restriction" is set to "Do not limit" in the initial configuration. With this configuration, the user may be redirected to an arbitrary website when accessing a specially crafted URL.

CVSS v3.1 Score

4.7

MEDIUM

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

Weakness Type (CWE)

CWE-1188 CWE-1188

Affected Products

Vendor	Product	Versions
groupsession	groupsession	< 5.7.1
groupsession	groupsession	< 5.7.1
groupsession	groupsession	< 5.7.1

References

Advisories & Patches

https://groupsession.jp/info/info-news/security20251208

Other References

https://jvn.jp/en/jp/JVN19940619/

Frequently Asked Questions

What is CVE-2025-64781? +

In GroupSession Free edition prior to ver5.7.1, GroupSession byCloud prior to ver5.7.1, and GroupSession ZION prior to ver5.7.1, "External page display restriction" is set to "Do not limit" in the initial configuration. With this configuration, the user may be redirected to an arbitrary website when accessing a specially crafted URL. It has a CVSS v3.1 base score of 4.7 (MEDIUM).

How severe is CVE-2025-64781? +

CVE-2025-64781 has a CVSS v3.1 score of 4.7 out of 10, rated MEDIUM. This is a medium-severity vulnerability that should be remediated as part of regular maintenance.

What products are affected by CVE-2025-64781? +

CVE-2025-64781 affects products from groupsession, specifically: groupsession. Check the affected products table above for specific version ranges.

How do I check if I'm vulnerable to CVE-2025-64781? +

You can use Secably's free Website Scanner to check your website for known vulnerabilities. For infrastructure scanning, use the Port Scanner to identify exposed services that may be affected. Check the vendor advisories linked above for specific patch and version information.

Related Vulnerabilities

CVE-2024-51758

Filament is a collection of full-stack components for accelerated Laravel development. All Filament features that interact with storage use the …

CVE-2026-44670

SiYuan is an open-source personal knowledge management system. Prior to 3.7.0, the kernel stores Attribute View (AV / database) names …

CVE-2025-7353

A security issue exists due to the web-based debugger agent enabled on Rockwell Automation ControlLogix® Ethernet Modules. If a specific …

CVE-2024-5801

Enabled IP Forwarding feature in B&R Automation Runtime versions before 6.0.2 may allow remote attack-ers to compromise network security by …

CVE-2026-6866

CWE-1188 Initialization of a Resource with an Insecure Default vulnerability exists that could cause unauthorized disclosure of sensitive information when …

CVE-2026-6043

P4 Server versions prior to 2026.1 are configured with insecure default settings that, when exposed to untrusted networks, allow unauthenticated …