CVE-2022-23548
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I. Basic Information for CVE-2022-23548
Vulnerability Information
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Vulnerability Title
N/A
Source: NVD (National Vulnerability Database)
Vulnerability Description
Discourse is an option source discussion platform. Prior to version 2.8.14 on the `stable` branch and version 2.9.0.beta16 on the `beta` and `tests-passed` branches, parsing posts can be susceptible to regular expression denial of service (ReDoS) attacks. This issue is patched in versions 2.8.14 and 2.9.0.beta16. There are no known workarounds.
Source: NVD (National Vulnerability Database)
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
Source: NVD (National Vulnerability Database)
Vulnerability Type
CWE-1333
Source: NVD (National Vulnerability Database)
Vulnerability Title
Discourse 跨站脚本漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Discourse是一套开源的社区讨论平台。该平台包括社区、电子邮件和聊天室等功能。 Discourse 2.8.14之前版本（stable）、2.9.0.beta16之前版本（beta和tests-passed）存在跨站脚本漏洞，该漏洞源于解析帖子容易受到跨站脚本攻击。
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
II. Public POCs for CVE-2022-23548
| # | POC Description | Source Link | Shenlong Link |
|---|
AI-Generated POCPremium
No public POC found.
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Same Patch Batch · discourse · 2023-01-05 · 8 CVEs total
| CVE-2023-22454 | 8.0 HIGH | Discourse vulnerable to Cross-site Scripting through pending post titles descriptions |
| CVE-2023-22455 | 6.8 MEDIUM | Discourse vulnerable to Cross-site Scripting through tag descriptions |
| CVE-2022-46177 | 5.7 MEDIUM | Discourse password reset link can lead to in account takeover if user changes to a new ema |
| CVE-2022-23549 | 5.7 MEDIUM | Discourse vulnerable to bypass of post max_length using HTML comments |
| CVE-2022-23546 | 5.5 MEDIUM | Discourse vulnerable to private topic leak via email#send_digest |
| CVE-2023-22453 | 5.3 MEDIUM | Discourse vulnerable to exposure of user post counts per topic to unauthorized users |
| CVE-2022-46168 | 3.5 LOW | Group SMTP user emails are exposed in CC email header |
IV. Related Vulnerabilities
Same product: discourse
- CVE-2026-34947
Discourse: Staged user custom fields are exposed on public i - CVE-2026-27481
Discourse: Hidden tag visibility bypass on tag routes - CVE-2026-33415
Discourse: Improper Access Control in discourse-ai Allows Un - CVE-2026-33300
Discourse: Hidden group names and access metadata are expose - CVE-2026-33185
Discourse: Group SMTP test endpoint susceptible to SSRF
Same vendor: discourse
- CVE-2026-34947
Discourse: Staged user custom fields are exposed on public i - CVE-2026-27481
Discourse: Hidden tag visibility bypass on tag routes - CVE-2026-33415
Discourse: Improper Access Control in discourse-ai Allows Un - CVE-2026-33300
Discourse: Hidden group names and access metadata are expose - CVE-2026-33185
Discourse: Group SMTP test endpoint susceptible to SSRF
Same weakness: CWE-1333
- CVE-2026-33079
Mistune ReDoS in LINK_TITLE_RE allows denial of service with - CVE-2026-41040
GROWI 安全漏洞 - CVE-2026-40319
Giskard has a Regular Expression Denial of Service (ReDoS) i - CVE-2026-5986
Zod jsVideoUrlParser util.js getTime redos - CVE-2026-35041
ReDoS in fast-jwt when using RegExp in allowed* leading to C
V. Comments for CVE-2022-23548
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