How severe is CVE-2022-21666?

CVE-2022-21666 has a CVSS 3.x base score of 7.2, rated high severity. It is exploitable over network with low attack complexity, requires high privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.

Is CVE-2022-21666 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (64th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2022-21666?

CVE-2022-21666 affects Useful Simple Open-source Cms Project Useful Simple Open-source Cms. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2022-21666?

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

When was CVE-2022-21666 published?

CVE-2022-21666 was published on 2022-01-10 and last updated on 2026-06-17.

CVE-2022-21666

CVE-2022-21666 is a high-severity vulnerability in Useful Simple Open-source Cms Project Useful Simple Open-source Cms with a CVSS 3.x base score of 7.2. 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-89.

Key facts

Severity: High (CVSS 3.x base score 7.2)
CVSS v2: 6.5
EPSS exploit prediction: 1% (64th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-89
Affected product: Useful Simple Open-source Cms Project Useful Simple Open-source Cms
Published: 2022-01-10
Last modified: 2026-06-17

Description

Useful Simple Open-Source CMS (USOC) is a content management system (CMS) for programmers. Versions prior to Pb2.4Bfx3 allowed Sql injection in usersearch.php only for users with administrative privileges. Users should replace the file `admin/pages/useredit.php` with a newer version. USOC version Pb2.4Bfx3 contains a fixed version of `admin/pages/useredit.php`.

Frequently asked questions

What is CVE-2022-21666?: Useful Simple Open-Source CMS (USOC) is a content management system (CMS) for programmers. Versions prior to Pb2.4Bfx3 allowed Sql injection in usersearch.php only for users with administrative privileges. Users should replace the file `admin/pages/useredit.php` with a newer version. USOC version Pb2.4Bfx3 contains a fixed version of `admin/pages/useredit.php`.
How severe is CVE-2022-21666?: CVE-2022-21666 has a CVSS 3.x base score of 7.2, rated high severity. It is exploitable over network with low attack complexity, requires high privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.
Is CVE-2022-21666 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (64th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2022-21666?: CVE-2022-21666 affects Useful Simple Open-source Cms Project Useful Simple Open-source Cms. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2022-21666?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.
When was CVE-2022-21666 published?: CVE-2022-21666 was published on 2022-01-10 and last updated on 2026-06-17.

References

Affected products (1)

cpe:2.3:a:useful_simple_open-source_cms_project:useful_simple_open-source_cms:*:*:*:*:*:*:*:*

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