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Low severity2.7NVD Advisory· Published Jun 19, 2020· Updated Jun 17, 2026

CVE-2018-21260

CVE-2018-21260

Description

An issue was discovered in Mattermost Server before 4.8.1, 4.7.4, and 4.6.3. WebSocket events were accidentally sent during certain user-management operations, violating user privacy.

AI Insight

LLM-synthesized narrative grounded in this CVE's description and references.

Affected products

3
  • Mattermost/Mattermost2 versions
    cpe:2.3:a:mattermost:mattermost_server:*:*:*:*:*:*:*:*+ 1 more
    • cpe:2.3:a:mattermost:mattermost_server:*:*:*:*:*:*:*:*range: >=4.6.0,<4.6.3
    • (no CPE)range: <4.8.1, <4.7.4, <4.6.3
  • Mattermost/Serverdescription

Patches

Vulnerability mechanics

References

1

News mentions

0

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