CVE-2026-85603— Grav Admin Plugin Path Traversal via Save As Language Code
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 版本在 1.10.55 之前存在路径遍历漏洞，该漏洞位于管理后台插件的“另存为”（Save As）功能中，原因是该功能未对语言代码（language code）参数进行有效验证。拥有 admin.pages.create 权限的已认证管理员用户可以在 lang POST 字段中提交目录遍历序列，从而在 pages 目录之外写入由攻击者控制内容的任意 .md 文件。
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I. Basic Information for CVE-2026-85603
Vulnerability Information
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Vulnerability Title
Grav Admin Plugin Path Traversal via Save As Language Code
Source: CVE Program / CVE List V5
Vulnerability Description
Grav versions before 1.10.55 contain a path traversal vulnerability in the admin plugin's Save As action that fails to validate the language code parameter. An authenticated admin user with admin.pages.create permission can supply directory traversal sequences in the lang POST field to write arbitrary .md files outside the pages directory with attacker-controlled content.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:N
Source: CVE Program / CVE List V5
Vulnerability Type
文件名或路径的外部可控制
Source: CVE Program / CVE List V5
Affected Products
II. Public POCs for CVE-2026-85603
| # | POC Description | Source Link | Shenlong Link |
|---|
AI-Generated POC
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No public POC found.
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Vendor Advisories for CVE-2026-85603 (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-2026-85598 | 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-2026-85601 | 5.4 MEDIUM | Grav Admin before 2.0.20 Cross-Site Scripting via marked.js |
| 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-2026-85602
Grav Form Plugin before 9.1.20 reCAPTCHA v3 Authentication B -
CVE-2026-85601
Grav Admin before 2.0.20 Cross-Site Scripting via marked.js -
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-2026-85604
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-2026-85601
Grav Admin before 2.0.20 Cross-Site Scripting via marked.js -
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-73
-
CVE-2026-80119
PassMark PerformanceTest, BurnInTest, and OSForensics Physic -
CVE-2026-85687
surya 0.22.1 Unauthenticated Arbitrary File Read via screens -
CVE-2026-85684
marker through 2.0.0 Path Traversal via upload filename -
CVE-2026-85668
Xinference 3.3.0 Unauthenticated Arbitrary-Path File Read vi -
CVE-2026-85176
DbGate through 7.2.6 Arbitrary File Read and Write via file:
V. Comments for CVE-2026-85603
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