How severe is CVE-2025-4573?

CVE-2025-4573 has a CVSS 3.x base score of 4.1, rated medium severity. It is exploitable over network with low attack complexity, requires high privileges and no user interaction. Impact on confidentiality is low, integrity none, and availability none.

Is CVE-2025-4573 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (14th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2025-4573?

CVE-2025-4573 affects Mattermost Mattermost Server. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2025-4573?

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

Does CVE-2025-4573 have an EU (EUVD) identifier?

Yes. CVE-2025-4573 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2025-18095.

When was CVE-2025-4573 published?

CVE-2025-4573 was published on 2025-06-11 and last updated on 2026-06-17.

CVE-2025-4573

CVE-2025-4573 is a medium-severity vulnerability in Mattermost Mattermost Server with a CVSS 3.x base score of 4.1. 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-90.

Key facts

Severity: Medium (CVSS 3.x base score 4.1)
EPSS exploit prediction: 0% (14th percentile)
Actively exploited: Not listed in CISA KEV
EU (EUVD) id: EUVD-2025-18095
Weakness: CWE-90
Affected product: Mattermost Mattermost Server
Published: 2025-06-11
Last modified: 2026-06-17

Description

Mattermost versions 10.7.x <= 10.7.1, 10.6.x <= 10.6.3, 10.5.x <= 10.5.4, 9.11.x <= 9.11.13 fail to properly validate LDAP group ID attributes, allowing an authenticated administrator with PermissionSysconsoleWriteUserManagementGroups permission to execute LDAP search filter injection via the PUT /api/v4/ldap/groups/{remote_id}/link API when objectGUID is configured as the Group ID Attribute.

Frequently asked questions

What is CVE-2025-4573?: Mattermost versions 10.7.x <= 10.7.1, 10.6.x <= 10.6.3, 10.5.x <= 10.5.4, 9.11.x <= 9.11.13 fail to properly validate LDAP group ID attributes, allowing an authenticated administrator with PermissionSysconsoleWriteUserManagementGroups permission to execute LDAP search filter injection via the PUT /api/v4/ldap/groups/{remote_id}/link API when objectGUID is configured as the Group ID Attribute.
How severe is CVE-2025-4573?: CVE-2025-4573 has a CVSS 3.x base score of 4.1, rated medium severity. It is exploitable over network with low attack complexity, requires high privileges and no user interaction. Impact on confidentiality is low, integrity none, and availability none.
Is CVE-2025-4573 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (14th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2025-4573?: CVE-2025-4573 affects Mattermost Mattermost Server. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2025-4573?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
Does CVE-2025-4573 have an EU (EUVD) identifier?: Yes. CVE-2025-4573 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2025-18095.
When was CVE-2025-4573 published?: CVE-2025-4573 was published on 2025-06-11 and last updated on 2026-06-17.

References

https://mattermost.com/security-updates

Affected products (1)

cpe:2.3:a:mattermost:mattermost_server:*:*:*:*:*:*:*:*

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