CVE-2026-55885Public exploitNetwork attack vector

Credential and configuration disclosure via nonce-only backup download

Published Jul 10, 2026 · Updated Jul 10, 2026

Information disclosure in Grav before 1.7.53 allows remote authenticated users to download account hashes and site configuration. The default backup profile passes an empty root to Backups::backup(), which resolves it to GRAV_ROOT and archives account and configuration files. Access requires a valid administrator session with backup permission and the session-static admin-nonce; exposure supports offline password cracking and reveals configuration secrets.

CVSS severity6.8
Medium
EPSS probability0.27%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Information disclosure in Grav before 1.7.53 allows remote authenticated users to download account hashes and site configuration. The default backup profile passes an empty root to Backups::backup(), which resolves it to GRAV_ROOT and archives account and configuration files. Access requires a valid administrator session with backup permission and the session-static admin-nonce; exposure supports offline password cracking and reveals configuration secrets.

The record

CVE
CVE-2026-55885
Published
Jul 10, 2026
Updated
Jul 10, 2026
Vendor
Grav
Product
Grav
Classifications
CWE-522, CWE-312, T1110.002, T1552.001
Attack vector
network
Privileges
admin

Timeline

How it unfolded

  1. Jul 10, 2026CVE publishedPublication date reported by the CVE source.
  2. Jul 10, 2026Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

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Is a vulnerable build present?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion=< 1.7.53

What conditions does exploitation require?

Attack vectornetwork
Required privilegesadmin

What is affected?

Grav · Gravversion=< 1.7.53

Published CVSS scores

6.8GitHubCVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:C/C:H/I:N/A:N

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

Daily unique IPsNo honeypot observations are available for this CVE in the selected window.

No observations available

Sep 10, 2026Sep 16, 2026
Latest reporting daySep 16, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesadmin
Known exploitationUnconfirmed
Public exploitPublished

Weakness, pattern, technique

CWE-522Insufficiently Protected Credentials
CWE-312Cleartext Storage of Sensitive Information
T1110.002Password Cracking
T1552.001Credentials In Files

Public exploit references

Labels summarize the accepted research assessment. They do not indicate a test against your environment.

Technologies

Your stack

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Your stack

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