What is CVE-2025-53504?

CVE-2025-53504 is a medium-severity vulnerability in Group-office Group_office, classified under Cross-site Scripting. CVSS score: 5.4/10. Published 2025-08-21.

How severe is CVE-2025-53504?

Medium severity. CVSS v3 base score is 5.4 out of 10.

XSS in Group-office Group_office

CVE-2025-53504

Group-Office versions prior to 6.8.119 and prior to 25.0.20 provided by Intermesh BV contain a cross-site scripting vulnerability. If this vulnerability is exploited, an arbitrary script may be executed in the user's web browser.

Vulnerability class: XSS (Cross-Site Scripting)

EPSS: 0.002 (6.6th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 5.4 (Medium). Vector: CVSS:3.0/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N.

Affected products

Group-office Group_office
Intermesh Bv Group-office — versions prior to 6.8.119, prior to 25.0.20

Weakness classification (CWE)

CWE-79 — Cross-site Scripting

References

vultures@jpcert.or.jp (Product)
vultures@jpcert.or.jp (Third Party Advisory)

Frequently asked questions

What is CVE-2025-53504?: CVE-2025-53504 is a medium-severity vulnerability in Group-office Group_office, classified under Cross-site Scripting. CVSS score: 5.4/10. Published 2025-08-21.
How severe is CVE-2025-53504?: Medium severity. CVSS v3 base score is 5.4 out of 10.