CVE-2023-2193— Oauth authorization codes do not expire when deauthorizing an oauth2 app
Quick assessment
Affected
Mattermost Mattermost
Exploitation
No confirmed in-the-wild exploitation; assess based on exposure
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.
Mattermost是美国Mattermost公司的一个开源协作平台。 Mattermost存在安全漏洞，该漏洞源于取消对 OAuth2 应用程序的授权时，现有授权码无效，从而允许拥有授权码的攻击者生成访问令牌。
Possible ATT&CK Techniques 1 AI
T1190 · Exploit Public-Facing Application
Get alerts for future matching vulnerabilities
Log in to subscribe
I. Basic Information for CVE-2023-2193
Vulnerability Information
Have questions about the vulnerability? See if Shenlong's analysis helps!
View Shenlong Deep Dive ↗
Although we use advanced large model technology, its output may still contain inaccurate or outdated information.Shenlong tries to ensure data accuracy, but please verify and judge based on the actual situation.
Vulnerability Title
Oauth authorization codes do not expire when deauthorizing an oauth2 app
Source: CVE Program / CVE List V5
Vulnerability Description
Mattermost fails to invalidate existing authorization codes when deauthorizing an OAuth2 app, allowing an attacker possessing an authorization code to generate an access token.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:N
Source: CVE Program / CVE List V5
Vulnerability Type
授权机制缺失
Source: CVE Program / CVE List V5
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，该漏洞源于取消对 OAuth2 应用程序的授权时，现有授权码无效，从而允许拥有授权码的攻击者生成访问令牌。
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 ~ 7.1.7 | - |
|
II. Public POCs for CVE-2023-2193
| # | POC Description | Source Link | Shenlong Link |
|---|
AI-Generated POC
Premium
No public POC found.
Login to generate AI POCIII. Intelligence Information for CVE-2023-2193
请登录查看更多情报信息。
Other References for CVE-2023-2193 (1)
IV. Related Vulnerabilities
Same product: Mattermost
-
CVE-2026-18799
Mattermost Server fails to restrict Slack import account bin -
CVE-2026-16251
Mattermost local image proxy allows server memory exhaustion -
CVE-2026-18256
Private team metadata disclosure via the team search API -
CVE-2026-18223
Mattermost invitation tokens not bound to invited email addr -
CVE-2026-19076
Mattermost fails to reject OAuth application sessions in acc
Same vendor: Mattermost
-
CVE-2026-18799
Mattermost Server fails to restrict Slack import account bin -
CVE-2026-16251
Mattermost local image proxy allows server memory exhaustion -
CVE-2026-18256
Private team metadata disclosure via the team search API -
CVE-2026-18223
Mattermost invitation tokens not bound to invited email addr -
CVE-2026-19076
Mattermost fails to reject OAuth application sessions in acc
Same weakness: CWE-862
-
CVE-2026-112380
Missing authorization in the WhatsApp channel in Kiro Crew -
CVE-2026-113660
ApostropheCMS: Authenticated Object-Level Authorization Bypa -
CVE-2026-113649
ApostropheCMS: Import API bypasses publication roles for pro -
CVE-2026-112957
ApostropheCMS: GET /api/v1/@apostrophecms/page/:id bypasses -
CVE-2026-113677
Froxlor 0.10.0 before 2.3.15 Missing Authorization via SubDo
V. Comments for CVE-2023-2193
No comments yet