CVE-2026-65886Known exploitationNetwork attack vector

Unauthenticated file disclosure via photo viewer traversal

Published Jul 29, 2026 · Updated Jul 29, 2026

Path traversal in the photo viewer in Balbooa Gridbox 1.0.0 through 2.20.1 allows remote attackers to read arbitrary server files. The publisher has not disclosed the viewer endpoint, request parameter, or pathname-validation error that lets the read escape the web root. No account, session, token, or user interaction is required; disclosure extends beyond the web root to files accessible to the web process.

CVSS severity9.2
Critical
EPSS probability0.36%
Next 30 days · Sep 16, 2026
Known exploitationReported
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Path traversal in the photo viewer in Balbooa Gridbox 1.0.0 through 2.20.1 allows remote attackers to read arbitrary server files. The publisher has not disclosed the viewer endpoint, request parameter, or pathname-validation error that lets the read escape the web root. No account, session, token, or user interaction is required; disclosure extends beyond the web root to files accessible to the web process.

The record

CVE
CVE-2026-65886
Published
Jul 29, 2026
Updated
Jul 29, 2026
Vendor
Balbooa
Product
Gridbox
Classifications
CWE-22, T1005
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Jul 29, 2026Exploitation reportedActive exploitation of Gridbox arbitrary file read
  2. Jul 29, 2026CVE publishedPublication date reported by the CVE source.
  3. Jul 29, 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=1.0.0-2.20.1

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

Balbooa · Gridboxversion=1.0.0-2.20.1

Published CVSS scores

7.5NIST NVDCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
9.2Joomla! ProjectCVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:N/VA:N/SC:H/SI:N/SA: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 9, 2026Sep 15, 2026
Latest reporting daySep 15, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesunauthenticated
Known exploitationReported
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-22Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal')
T1005Data from Local System

Public exploit references

No public exploit references are available in this record.

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

Reported exploitation

Technologies

Your stack

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Your stack

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