PT-2023-21539 · Unknown · Mattermost

CVE-2023-2808

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Published

2023-05-29

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Updated

2023-06-05

CVSS v3.1

4.3

Medium

VectorAV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:N
Name of the Vulnerable Software and Affected Versions Mattermost (affected versions not specified)
Description The issue arises from Mattermost's failure to normalize UTF confusable characters when determining whether to generate a preview for a hyperlink. This allows an attacker to trigger a link preview on a disallowed domain by using a specially crafted link.
Recommendations At the moment, there is no information about a newer version that contains a fix for this vulnerability.

Exploit

DoS

RCE

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Weakness Enumeration

Related Identifiers

CVE-2023-2808

Affected Products

Mattermost