CVE-2023-3590— Deleted attachments in Boards remain accessible
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I. Basic Information for CVE-2023-3590
Vulnerability Information
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Vulnerability Title
Deleted attachments in Boards remain accessible
Source: NVD (National Vulnerability Database)
Vulnerability Description
Mattermost fails to delete card attachments in Boards, allowing an attacker to access deleted attachments.
Source: NVD (National Vulnerability Database)
CVSS Information
CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:L/I:N/A:N
Source: NVD (National Vulnerability Database)
Vulnerability Type
授权机制不正确
Source: NVD (National Vulnerability Database)
Vulnerability Title
Mattermost 安全漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Mattermost是美国Mattermost公司的一个开源协作平台。 Mattermost存在安全漏洞，该漏洞源于无法删除Board中的卡片附件，从而允许攻击者访问已删除的附件。
Source: CNNVD (China National Vulnerability Database)
CVSS Information
N/A
Source: CNNVD (China National Vulnerability Database)
Vulnerability Type
N/A
Source: CNNVD (China National Vulnerability Database)
Affected Products
| Vendor | Product | Affected Versions | CPE | Subscribe |
|---|---|---|---|---|
| Mattermost | Mattermost | 0 ~ 7.10.2 | - |
II. Public POCs for CVE-2023-3590
| # | POC Description | Source Link | Shenlong Link |
|---|
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Same Patch Batch · Mattermost · 2023-07-17 · 13 CVEs total
| CVE-2023-3615 | 8.1 HIGH | Lack of server certificate validation in websockets connection |
| CVE-2023-3581 | 6.2 MEDIUM | WebSockets accept connections from HTTPS origin |
| CVE-2023-3591 | 4.8 MEDIUM | Lack of previous password reset tokens on new token creation |
| CVE-2023-3582 | 4.3 MEDIUM | Lack of channel membership check when linking a board to a channel |
| CVE-2023-3585 | 4.3 MEDIUM | channel DoS by sharing a boards link |
| CVE-2023-3614 | 4.3 MEDIUM | Denial of Service via specially crafted gif image |
| CVE-2023-3593 | 4.3 MEDIUM | Server crash via a specially crafted markdown input |
| CVE-2023-3586 | 4.2 MEDIUM | Disabling publicly-shared boards does not disable existing publicly available board links |
| CVE-2023-3577 | 3.5 LOW | Limited blind SSRF to localhost/intranet in interactive dialog implementation |
| CVE-2023-3613 | 3.5 LOW | Guest accounts invited and added to channels by Welcomebot plugin |
| CVE-2023-3584 | 3.1 LOW | Member can create team with team override scheme |
| CVE-2023-3587 | 2.7 LOW | Inconsistent state in UI after boards permission change by system admin |
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- CVE-2026-3590
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Unbounded Request Body Read in MS Teams Plugin {{/changes}} - CVE-2026-21388
Unbounded Request Body Read in MS Teams Plugin {{/lifecycle}
Same weakness: CWE-863
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