CVE-2026-65888Known exploitationNetwork attack vector

Unauthenticated account takeover via socialLogin

Published Jul 29, 2026 · Updated Jul 29, 2026

Authentication bypass in Balbooa Gridbox 1.0.0 through 2.20.1 allows remote attackers to take over any site account via socialLogin. Published sources identify socialLogin as the faulty locus and state that it logs an actor in as any chosen user, but withhold endpoint and parameter details. No account or user interaction is required, so an internet-reachable site can yield an administrator session when an administrator is selected.

CVSS severity9.8
Critical
EPSS probability0.29%
Next 30 days · Sep 16, 2026
Known exploitationReported
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Authentication bypass in Balbooa Gridbox 1.0.0 through 2.20.1 allows remote attackers to take over any site account via socialLogin. Published sources identify socialLogin as the faulty locus and state that it logs an actor in as any chosen user, but withhold endpoint and parameter details. No account or user interaction is required, so an internet-reachable site can yield an administrator session when an administrator is selected.

The record

CVE
CVE-2026-65888
Published
Jul 29, 2026
Updated
Jul 29, 2026
Vendor
Balbooa
Product
Gridbox
Classifications
CWE-284, CAPEC-1, T1190
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Jul 29, 2026CVE publishedPublication date reported by the CVE source.
  2. 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

9.8NVDCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
10.0Joomla! ProjectCVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:H/SI:H/SA:H/E:A

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-284Improper Access Control
CAPEC-1Accessing Functionality Not Properly Constrained by ACLs
T1190Exploit Public-Facing Application

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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