CVE-2026-72695— Grav before 2.0.16 Path Traversal via MediaUploadTrait deleteFile
Quick assessment
Affected
getgrav grav
Exploitation
Public or AI PoC available; prioritize validation
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.
在 Grav 版本低于 2.0.16 中，MediaUploadTrait::deleteFile() 函数存在路径遍历漏洞。具有媒体管理权限的已认证用户可通过提供包含目录遍历序列（如“../”）的文件名，删除任意文件。该函数仅对文件名的基本名称（basename）部分进行验证，而未对包含“../”序列的未经验证的目录路径进行校验，直接将完整路径传递给 unlink() 函数，从而导致攻击者能够删除预期媒体存储目录之外的任意文件。
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I. Basic Information for CVE-2026-72695
Vulnerability Information
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Vulnerability Title
Grav before 2.0.16 Path Traversal via MediaUploadTrait deleteFile
Source: CVE Program / CVE List V5
Vulnerability Description
Grav before 2.0.16 contains a path traversal vulnerability in MediaUploadTrait::deleteFile() that allows authenticated users with media management permissions to delete arbitrary files by supplying filenames with directory traversal sequences. The method validates only the basename portion of the filename while preserving unvalidated directory paths containing ../ sequences that are passed to unlink(), enabling deletion of files outside the intended media storage directory.
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:H
Source: CVE Program / CVE List V5
Vulnerability Type
对路径名的限制不恰当(路径遍历)
Source: CVE Program / CVE List V5
Affected Products
II. Public POCs for CVE-2026-72695
| # | POC Description | Source Link | Shenlong Link |
|---|
AI-Generated POC
Premium
Qwen3.6-35B-A3B
· 9407 chars
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Vulnerability reproduction recording (real sandbox build + trigger, exclusive)
In-depth vulnerability mechanism
Trigger conditions & impact
Full executable POC code
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III. Intelligence Information for CVE-2026-72695
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Vendor Advisories for CVE-2026-72695 (2)
Same Patch Batch · getgrav · 2026-08-25 · 15 CVEs total
| CVE-2026-56710 | 9.8 CRITICAL | Grav Login Plugin before 1.0.16 Privilege Escalation via Unlock |
| CVE-2026-75574 | 8.8 HIGH | Grav before 4.2.2 Remote Code Execution via Email Twig |
| CVE-2026-72696 | 8.4 HIGH | Grav CMS before 2.0.16 Symlink Following via createLockFile |
| CVE-2026-56707 | 7.7 HIGH | Grav Flex Objects 1.4.0 through 1.4.7 Authorization Bypass via Shortcode |
| CVE-2026-72700 | 7.5 HIGH | Grav before 3.9.1 Timing Attack via Non-Constant-Time Token Comparison |
| CVE-2026-76846 | 7.5 HIGH | Grav before 2.0.16 Information Disclosure via Twig Sandbox |
| CVE-2026-56709 | 7.5 HIGH | Grav before 3.9.2 Host Header Injection via sendInvitationEmail |
| CVE-2026-72698 | 6.5 MEDIUM | Grav CMS before 2.0.16 Information Disclosure via Twig Sandbox Bypass |
| CVE-2026-72697 | 6.5 MEDIUM | Grav CMS before 2.0.16 Path Traversal via media_directory |
| CVE-2026-76839 | 6.5 MEDIUM | Grav before 2.0.16 Information Disclosure via offsetGet |
| CVE-2026-72702 | 5.4 MEDIUM | Grav CMS before 2.0.16 Origin Validation Bypass via Referer |
| CVE-2026-72699 | 5.3 MEDIUM | Grav Login Plugin before 3.9.1 Email Enumeration via Registration |
| CVE-2026-56708 | 5.3 MEDIUM | Grav API Plugin before 1.0.16 SSRF via DNS Rebinding |
| CVE-2026-72701 | 3.7 LOW | Grav CMS before 2.0.16 Timing Attack via verifyNonce |
IV. Related Vulnerabilities
Same product: grav
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CVE-2026-76846
Grav before 2.0.16 Information Disclosure via Twig Sandbox -
CVE-2026-76839
Grav before 2.0.16 Information Disclosure via offsetGet -
CVE-2026-75574
Grav before 4.2.2 Remote Code Execution via Email Twig -
CVE-2026-72702
Grav CMS before 2.0.16 Origin Validation Bypass via Referer -
CVE-2026-72701
Grav CMS before 2.0.16 Timing Attack via verifyNonce
Same vendor: getgrav
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CVE-2026-76846
Grav before 2.0.16 Information Disclosure via Twig Sandbox -
CVE-2026-76839
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CVE-2026-75574
Grav before 4.2.2 Remote Code Execution via Email Twig -
CVE-2026-72702
Grav CMS before 2.0.16 Origin Validation Bypass via Referer -
CVE-2026-72701
Grav CMS before 2.0.16 Timing Attack via verifyNonce
Same weakness: CWE-22
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V. Comments for CVE-2026-72695
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