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CVE-2026-55885— Grav: Admin Backup Zip File Exposes Account Credentials and Configuration Secrets

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.

getgrav Grav是getgrav个人开发者开源的一套可扩展的内容管理系统。 getgrav Grav 1.7.53之前版本存在安全漏洞，该漏洞源于备份下载端点仅通过session-static admin-nonce URL参数保护，可能导致通过身份验证的具有备份权限的管理员下载包含完整Grav安装根目录的ZIP存档，包括管理员密码哈希和站点配置。

CVSS 6.8 · Medium EPSS 0.27% · P17

Possible ATT&CK Techniques 1 AI

T1530 · Data from Cloud Storage

Affected Version Matrix 1

VendorProduct Version RangeStatus
getgrav grav < 1.7.53 affected
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I. Basic Information for CVE-2026-55885

Vulnerability Information
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Vulnerability Title
Grav: Admin Backup Zip File Exposes Account Credentials and Configuration Secrets
Source: CVE Program / CVE List V5
Vulnerability Description
Grav is a file-based Web platform. Prior to 1.7.53, an authenticated administrator with backup permissions can download a ZIP archive containing the full Grav installation root, including user/accounts/admin.yaml with the administrator password hash and user/config with site configuration, through the backup download endpoint protected only by the session-static admin-nonce URL parameter. This issue is reported as fixed in version 1.7.53.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:C/C:H/I:N/A:N
Source: CVE Program / CVE List V5
Vulnerability Type
敏感数据的明文存储
Source: CVE Program / CVE List V5
Vulnerability Title
getgrav Grav 加密问题漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
getgrav Grav是getgrav个人开发者开源的一套可扩展的内容管理系统。 getgrav Grav 1.7.53之前版本存在安全漏洞，该漏洞源于备份下载端点仅通过session-static admin-nonce URL参数保护，可能导致通过身份验证的具有备份权限的管理员下载包含完整Grav安装根目录的ZIP存档，包括管理员密码哈希和站点配置。
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

Vendor Product Affected Versions CPE Subscribe
getgrav grav < 1.7.53 -

II. Public POCs for CVE-2026-55885

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III. Intelligence Information for CVE-2026-55885

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Vendor Advisories for CVE-2026-55885 (1)

Vendor Pages for CVE-2026-55885 (1)

Same Patch Batch · getgrav · 2026-07-10 · 10 CVEs total

CVE-2026-61450 6.5 MEDIUM Grav before 2.0.2 Config Exfiltration via offsetGet Filter
CVE-2026-61455 6.5 MEDIUM Grav before 2.0.1 Decompression Bomb via ZipArchiver
CVE-2026-55890 4.8 MEDIUM Grav: Stored CSS injection via Markdown image ?style=… reaches MediaObjectTrait::style()
CVE-2026-61456 4.6 MEDIUM Grav before 1.0.3 Stored XSS via SVG Upload API
CVE-2026-53653 Grav: Unauthenticated denial of service via unbounded image derivative dimensions
CVE-2026-58493 grav-plugin-database: DSN Parameter Injection via Unsanitized Configuration Values in Conn
CVE-2026-58492 grav-plugin-database: SQL Injection in PDO::tableExists() due to Unsanitized Table Name In
CVE-2026-59193 Grav CMS — Improper Handling of Highly Compressed Data in Installer::unZip()
CVE-2026-59190 Grav Admin Plugin — IDOR Privilege Escalation via saveUser()

IV. Related Vulnerabilities

Same product: grav
Same vendor: getgrav
Same weakness: CWE-312

V. Comments for CVE-2026-55885

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