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Vulnerability record · CVE-2026-65887 · published 29 July 2026

CVE-2026-65887: Balbooa gridbox improper access control vulnerability

Balbooa · Gridbox

Joomla Extension - balbooa.com - Unauthenticated arbitrary password reset in Gridbox < 2.20.2 - The resetPassword method allows actors to reset any user password, allowing to login and act as these users - excluding super admins.

10.0 CVSS 4.0 Critical EPSS 0.52% · top 58.3% CWE-284 · Improper access control
10.0CVSS 4.0 base score
0.52%EPSS exploitation probability, 30 days
NoNot in CISA KEV
1Affected product versions listed by NVD
2References
5 Aug 2026Last modified by NVD

Description

Joomla Extension - balbooa.com - Unauthenticated arbitrary password reset in Gridbox < 2.20.2 - The resetPassword method allows actors to reset any user password, allowing to login and act as these users - excluding super admins.

CVSS: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/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:Y/R:

Affected products

1 vulnerable configurations from NVD's CPE data, grouped by vendor and product.

References

LinkTags
https://mysites.guru/blog/gridbox-23-critical-vulnerabilities/ Third Party Advisory
https://www.balbooa.com/gridbox Product

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Related vulnerabilities

Same products first, then exploited flaws of the same weakness class.

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Source: NIST National Vulnerability Database (record CVE-2026-65887), CISA KEV, FIRST EPSS (scores of 2026-09-27). This page is refreshed as NVD updates the record.