How severe is CVE-2025-53504?

CVE-2025-53504 has a CVSS 3.x base score of 5.4, rated medium severity. It is exploitable over network with low attack complexity, requires low privileges and user interaction. Impact on confidentiality is low, integrity low, and availability none.

Is CVE-2025-53504 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (7th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2025-53504?

CVE-2025-53504 affects Group-office Group Office. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2025-53504?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.

Does CVE-2025-53504 have an EU (EUVD) identifier?

Yes. CVE-2025-53504 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2025-25452.

When was CVE-2025-53504 published?

CVE-2025-53504 was published on 2025-08-21 and last updated on 2026-06-17.

CVE-2025-53504

CVE-2025-53504 is a medium-severity vulnerability in Group-office Group Office with a CVSS 3.x base score of 5.4. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-79.

Key facts

Severity: Medium (CVSS 3.x base score 5.4)
CVSS v4: 4.8
EPSS exploit prediction: 0% (7th percentile)
Actively exploited: Not listed in CISA KEV
EU (EUVD) id: EUVD-2025-25452
Weakness: CWE-79
Affected product: Group-office Group Office
Published: 2025-08-21
Last modified: 2026-06-17

Description

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.

Frequently asked questions

What is 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.
How severe is CVE-2025-53504?: CVE-2025-53504 has a CVSS 3.x base score of 5.4, rated medium severity. It is exploitable over network with low attack complexity, requires low privileges and user interaction. Impact on confidentiality is low, integrity low, and availability none.
Is CVE-2025-53504 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (7th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2025-53504?: CVE-2025-53504 affects Group-office Group Office. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2025-53504?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
Does CVE-2025-53504 have an EU (EUVD) identifier?: Yes. CVE-2025-53504 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2025-25452.
When was CVE-2025-53504 published?: CVE-2025-53504 was published on 2025-08-21 and last updated on 2026-06-17.

References

Affected products (1)

cpe:2.3:a:group-office:group_office:*:*:*:*:*:*:*:*

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