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cpe:2.3:a:mattermost:mattermost_server:10.2.0:-:*:*:*:*:*:*

part: a version: 10.2.0 update: -

VendorMattermost (ed0788ef-af60-58f1-b6aa-68289d9946dc)
ProductMattermost Server (657bc445-594e-5ca1-a676-4f18538f1c02)
Edition*
Language*
Software edition*
Target software*
Target hardware*
Other*
NotesImported from NVD CPE 2.0 feed

PURL mappings

PURLSourceLast updated
pkg:github/mattermost/mattermost-server purl2cpe 2026-06-01 10:18:19.891664

Vulnerability references

IdentifiercpeApplicabilitySubmitteddb.gcve.eu detailsRationale
CVE:CVE-2025-21088 vulnerable 2026-06-03 14:59:17.247780 WebApp crash via improper validation of proto style in attachments
MEDIUM (6.5)
Mattermost versions 10.2.x <= 10.2.0, 9.11.x <= 9.11.5, 10.0.x <= 10.0.3, 10.1.x <= 10.1.3 fail to properly validate the style of proto supplied to an action's style in post.props.attachments, which allows an attacker to crash the frontend via crafted malicious input.
Published: 2025-01-15T15:51:49.474Z
Updated: 2025-01-15T16:20:11.778Z
Reference links
Imported from gcve-enriched-dumps CVE data
CVE:CVE-2025-20621 vulnerable 2026-06-03 14:59:14.813365 Webapp crash via object that can't be cast to String in Attachment Field
MEDIUM (6.5)
Mattermost versions 10.2.x <= 10.2.0, 9.11.x <= 9.11.5, 10.0.x <= 10.0.3, 10.1.x <= 10.1.3 fail to properly handle posts with attachments containing fields that cannot be cast to a String, which allows an attacker to cause the webapp to crash via creating and sending such a post to a channel.
Published: 2025-01-16T18:16:28.042Z
Updated: 2025-01-16T18:57:02.927Z
Reference links
Imported from gcve-enriched-dumps CVE data
CVE:CVE-2025-20086 vulnerable 2026-06-03 14:59:07.219637 Insufficient Input Validation on Post Props
MEDIUM (6.5)
Mattermost versions 10.2.x <= 10.2.0, 9.11.x <= 9.11.5, 10.0.x <= 10.0.3, 10.1.x <= 10.1.3 fail to properly validate post props which allows a malicious authenticated user to cause a crash via a malicious post.
Published: 2025-01-15T16:49:51.066Z
Updated: 2025-02-12T20:31:20.302Z
Reference links
Imported from gcve-enriched-dumps CVE data

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