CVE-2026-85601— Grav Admin before 2.0.20 Cross-Site Scripting via marked.js
Quick assessment
Affected
getgrav grav
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.
Grav 管理后台在 2.0.20 之前的版本未能对 的输出进行净化处理，便直接通过 Svelte 的 指令将其插入 DOM，该问题存在于 和 组件中。攻击者可以在插件或主题的更新日志（changelogs）中注入 URI 协议，从而在已认证的管理员会话中执行任意代码，且无需访问网站前台。
Possible ATT&CK Techniques 1 AI
T1189 · Drive-by Compromise
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I. Basic Information for CVE-2026-85601
Vulnerability Information
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Vulnerability Title
Grav Admin before 2.0.20 Cross-Site Scripting via marked.js
Source: CVE Program / CVE List V5
Vulnerability Description
Grav Admin before 2.0.20 fails to sanitize output from marked.parse() before injecting it into the DOM via Svelte's {@html} directive in MarkdownEditor and MarkdownModal components. Attackers can inject javascript: URI schemes in plugin or theme changelogs to execute arbitrary code in authenticated admin sessions without requiring site access.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N
Source: CVE Program / CVE List V5
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: CVE Program / CVE List V5
Affected Products
II. Public POCs for CVE-2026-85601
| # | POC Description | Source Link | Shenlong Link |
|---|
AI-Generated POC
Premium
No public POC found.
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Vendor Advisories for CVE-2026-85601 (2)
Same Patch Batch · getgrav · 2026-09-04 · 7 CVEs total
| CVE-2026-85604 | 8.8 HIGH | Grav before 2.0.19 Remote Code Execution via sort filter |
| CVE-2026-85599 | 7.2 HIGH | Grav Shortcode Core before 6.2.5 Stored XSS via unescaped parameters |
| CVE-2026-85603 | 6.5 MEDIUM | Grav Admin Plugin Path Traversal via Save As Language Code |
| CVE-2026-85598 | 6.4 MEDIUM | Grav 2.0.0 through 2.0.17 Stored XSS via Modular Pages |
| CVE-2026-85600 | 5.4 MEDIUM | Grav Admin before 2.0.21 Stored XSS via username |
| CVE-2026-85602 | 5.3 MEDIUM | Grav Form Plugin before 9.1.20 reCAPTCHA v3 Authentication Bypass |
IV. Related Vulnerabilities
Same product: grav
-
CVE-2026-85604
Grav before 2.0.19 Remote Code Execution via sort filter -
CVE-2026-85603
Grav Admin Plugin Path Traversal via Save As Language Code -
CVE-2026-85602
Grav Form Plugin before 9.1.20 reCAPTCHA v3 Authentication B -
CVE-2026-85600
Grav Admin before 2.0.21 Stored XSS via username -
CVE-2026-85599
Grav Shortcode Core before 6.2.5 Stored XSS via unescaped pa
Same vendor: getgrav
-
CVE-2026-85603
Grav Admin Plugin Path Traversal via Save As Language Code -
CVE-2026-85604
Grav before 2.0.19 Remote Code Execution via sort filter -
CVE-2026-85602
Grav Form Plugin before 9.1.20 reCAPTCHA v3 Authentication B -
CVE-2026-85600
Grav Admin before 2.0.21 Stored XSS via username -
CVE-2026-85599
Grav Shortcode Core before 6.2.5 Stored XSS via unescaped pa
Same weakness: CWE-79
-
CVE-2026-52772
YesWiki: Bazar form-field templates still apply `|raw('html' -
CVE-2026-73848
Emlog: Stored XSS via Tag Name in Article Editor -
CVE-2026-53758
Emlog: Stored XSS via Parsedown Markdown Processing - Raw HT -
CVE-2026-14466
Possible XSS in the SNS web administration panel -
CVE-2026-8447
Langflow is vulnerable to stored cross-site scripting and IP
V. Comments for CVE-2026-85601
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