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

CVE-2019-20855

CVE-2019-20855

Description

An issue was discovered in Mattermost Server before 5.16.1, 5.15.2, 5.14.5, and 5.9.6. It allows attackers to obtain sensitive information (local files) during legacy attachment migration.

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: <5.9.6
    • (no CPE)range: <5.16.1, <5.15.2, <5.14.5, <5.9.6
  • Mattermost/Serverdescription

Patches

Vulnerability mechanics

References

1

News mentions

0

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