CVE-2023-36459— Mastodon vulnerable to Cross-site Scripting through oEmbed preview cards
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I. Basic Information for CVE-2023-36459
Vulnerability Information
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Vulnerability Title
Mastodon vulnerable to Cross-site Scripting through oEmbed preview cards
Source: NVD (National Vulnerability Database)
Vulnerability Description
Mastodon is a free, open-source social network server based on ActivityPub. Starting in version 1.3 and prior to versions 3.5.9, 4.0.5, and 4.1.3, an attacker using carefully crafted oEmbed data can bypass the HTML sanitization performed by Mastodon and include arbitrary HTML in oEmbed preview cards. This introduces a vector for cross-site scripting (XSS) payloads that can be rendered in the user's browser when a preview card for a malicious link is clicked through. Versions 3.5.9, 4.0.5, and 4.1.3 contain a patch for this issue.
Source: NVD (National Vulnerability Database)
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:H/I:H/A:N
Source: NVD (National Vulnerability Database)
Vulnerability Type
在Web页面生成时对输入的转义处理不恰当(跨站脚本)
Source: NVD (National Vulnerability Database)
Vulnerability Title
Mastodon 跨站脚本漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Mastodon是一款基于ActivityPub的开源社交网络服务器。 Mastodon存在跨站脚本漏洞。攻击者利用该漏洞绕过HTML清理，并在oEmbed预览卡中包含任意HTML。
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-2023-36459
| # | POC Description | Source Link | Shenlong Link |
|---|
AI-Generated POCPremium
No public POC found.
Login to generate AI POCIII. Intelligence Information for CVE-2023-36459
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- https://github.com/mastodon/mastodon/releases/tag/v4.0.5x_refsource_MISC
- https://github.com/mastodon/mastodon/releases/tag/v4.1.3x_refsource_MISC
- https://github.com/mastodon/mastodon/releases/tag/v3.5.9x_refsource_MISC
- https://github.com/mastodon/mastodon/security/advisories/GHSA-ccm4-vgcc-73hpx_refsource_CONFIRM
- https://nvd.nist.gov/vuln/detail/CVE-2023-36459
Same Patch Batch · mastodon · 2023-07-06 · 4 CVEs total
| CVE-2023-36460 | 10.0 CRITICAL | Mastodon vulnerable to arbitrary file creation through media attachments |
| CVE-2023-36461 | 7.5 HIGH | Mastodon vulnerable to Denial of Service through slow HTTP responses |
| CVE-2023-36462 | 5.4 MEDIUM | Mastodon's verified profile links can be formatted in a misleading way |
IV. Related Vulnerabilities
Same product: mastodon
- CVE-2026-41259
Mastodon: Insufficient verification of email addresses - CVE-2026-33869
Mastodon has a denial of service for quote authorization - CVE-2026-33868
Mastodon has a GET-Based Open Redirect via '/web/%2F<domain> - CVE-2026-27477
Mastodon has SSRF via unvalidated FASP Provider base_url - CVE-2026-27468
Mastodon may allow unconfirmed FASP to make subscriptions
Same vendor: mastodon
- CVE-2026-41259
Mastodon: Insufficient verification of email addresses - CVE-2026-33869
Mastodon has a denial of service for quote authorization - CVE-2026-33868
Mastodon has a GET-Based Open Redirect via '/web/%2F<domain> - CVE-2026-27477
Mastodon has SSRF via unvalidated FASP Provider base_url - CVE-2026-27468
Mastodon may allow unconfirmed FASP to make subscriptions
Same weakness: CWE-79
- CVE-2026-8262
Devs Palace ERP Online chart-save cross site scripting - CVE-2026-8256
Devs Palace ERP Online mr-save cross site scripting - CVE-2026-8255
Devs Palace ERP Online add_new_customer cross site scripting - CVE-2026-8254
Devs Palace ERP Online sales_save cross site scripting - CVE-2026-8253
Devs Palace ERP Online purchase_save cross site scripting
V. Comments for CVE-2023-36459
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