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High severity7.5NVD Advisory· Published Jun 19, 2020· Updated Jun 17, 2026

CVE-2018-21248

CVE-2018-21248

Description

An issue was discovered in Mattermost Server before 5.4.0. It mishandles possession of superfluous authentication credentials.

AI Insight

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

Affected products

3

Mattermost/Mattermostllm-fuzzy2 versions
<5.4.0+ 1 more
- (no CPE)range: <5.4.0
- cpe:2.3:a:mattermost:mattermost_server:*:*:*:*:*:*:*:*range: <5.4.0
Mattermost/Serverdescription

Patches

Vulnerability mechanics

References

1

mattermost.com/security-updates/nvdVendor Advisory

News mentions

0

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