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

Severity: medium (CVSS 6.8 v3.1)
Exploited in the wild: not listed in CISA KEV
EPSS: 0.2% probability of exploitation in the next 30 days
Public exploit or detection template: none known
Published: 2026-07-10 · updated 2026-10-25
Weakness: CWE-312

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.

Affected products

getgrav grav: before 1.7.53

References

https://github.com/getgrav/grav/releases/tag/1.7.53
https://github.com/getgrav/grav/security/advisories/GHSA-2f86-9cp8-6hcf
https://github.com/getgrav/grav/security/advisories/GHSA-2f86-9cp8-6hcf

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