CVE-2023-2793

MediumCVSS 6.5/10Last modified Jun 17, 2026

Description

Mattermost fails to validate links on external websites when constructing a preview for a linked website, allowing an attacker to cause a denial-of-service by a linking to a specially crafted webpage in a message.

Metrics

CVSS 3.1 6.5/10CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

Weakness enumeration

CWE-400

Affected software

No affected versions have been published.

Timeline

Published
Jun 16, 2023
Last modified
Jun 17, 2026
NVD status
Modified

Related CVEs from 2023

CVE-2023-279307.8A type confusion issue was addressed with improved checks. This issue is fixed in iOS 16.5 and iPadOS 16.5, watchOS 9.5, tvOS 16.5, macOS VeCVE-2023-279315.5This issue was addressed by removing the vulnerable code. This issue is fixed in macOS Ventura 13.3, macOS Monterey 12.6.3, iOS 16.4 and iPaCVE-2023-279325.5This issue was addressed with improved state management. This issue is fixed in macOS Ventura 13.3, Safari 16.4, iOS 16.4 and iPadOS 16.4, tCVE-2023-279336.7The issue was addressed with improved memory handling. This issue is fixed in macOS Ventura 13.3, iOS 16.4 and iPadOS 16.4, macOS Monterey 1CVE-2023-279348.8A memory initialization issue was addressed. This issue is fixed in macOS Ventura 13.3, macOS Monterey 12.6.4. A remote attacker may be ableCVE-2023-279358.8The issue was addressed with improved bounds checks. This issue is fixed in macOS Ventura 13.3, macOS Monterey 12.6.4, macOS Big Sur 11.7.5.CVE-2023-279367.8An out-of-bounds write issue was addressed with improved input validation. This issue is fixed in macOS Ventura 13.3, iOS 15.7.4 and iPadOS CVE-2023-279377.8An integer overflow was addressed with improved input validation. This issue is fixed in macOS Ventura 13.3, iOS 16.4 and iPadOS 16.4, macOSCVE-2023-279387.8An out-of-bounds read issue was addressed with improved input validation. This issue is fixed in GarageBand for macOS 10.4.8. Parsing a maliCVE-2023-279395.5An out-of-bounds read was addressed with improved input validation. This issue is fixed in macOS Ventura 13.3. Processing an image may resulCVE-2023-27948.1A flaw was found in ofono, an Open Source Telephony on Linux. A stack overflow bug is triggered within the decode_deliver() function during CVE-2023-279406.3The issue was addressed with additional permissions checks. This issue is fixed in iOS 15.7.6 and iPadOS 15.7.6, macOS Monterey 12.6.6, macO
CVE-2023-2793: Medium severity, CVSS 6.5 | Vulnix