How severe is CVE-2026-65884?

CVE-2026-65884 has a CVSS 3.x base score of 9.8, rated critical severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.

Is CVE-2026-65884 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (42nd percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2026-65884?

CVE-2026-65884 affects Balbooa Gridbox. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2026-65884?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its critical severity, prioritise patching exposed systems.

When was CVE-2026-65884 published?

CVE-2026-65884 was published on 2026-07-29 and last updated on 2026-08-05.

CVE-2026-65884

CVE-2026-65884 is a critical-severity vulnerability in Balbooa Gridbox with a CVSS 3.x base score of 9.8. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-284.

Key facts

Severity: Critical (CVSS 3.x base score 9.8)
CVSS v4: 10.0
EPSS exploit prediction: 1% (42nd percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-284
Affected product: Balbooa Gridbox
Published: 2026-07-29
Last modified: 2026-08-05

Description

Joomla Extension - balbooa.com - Privilege Escalation in Gridbox < 2.20.2 - The registration method allows users provided usergroup IDs, allowing unauthenticated actors to register new accounts with administrative permissions.

Frequently asked questions

What is CVE-2026-65884?: Joomla Extension - balbooa.com - Privilege Escalation in Gridbox < 2.20.2 - The registration method allows users provided usergroup IDs, allowing unauthenticated actors to register new accounts with administrative permissions.
How severe is CVE-2026-65884?: CVE-2026-65884 has a CVSS 3.x base score of 9.8, rated critical severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.
Is CVE-2026-65884 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (42nd percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2026-65884?: CVE-2026-65884 affects Balbooa Gridbox. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2026-65884?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its critical severity, prioritise patching exposed systems.
When was CVE-2026-65884 published?: CVE-2026-65884 was published on 2026-07-29 and last updated on 2026-08-05.

References

Affected products (1)

cpe:2.3:a:balbooa:gridbox:*:*:*:*:*:joomla\!:*:*

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