How severe is CVE-2022-21644?

CVE-2022-21644 has a CVSS 3.x base score of 9.1, rated critical 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-2022-21644 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (60th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2022-21644?

CVE-2022-21644 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-2022-21644?

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-2022-21644 published?

CVE-2022-21644 was published on 2022-01-04 and last updated on 2026-06-17.

CVE-2022-21644

CVE-2022-21644 is a critical-severity vulnerability in Useful Simple Open-source Cms Project Useful Simple Open-source Cms with a CVSS 3.x base score of 9.1. 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: Critical (CVSS 3.x base score 9.1)
CVSS v2: 6.5
EPSS exploit prediction: 1% (60th 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: 2022-01-04
Last modified: 2026-06-17

Description

USOC is an open source CMS with a focus on simplicity. In affected versions USOC allows for SQL injection via usersearch.php. In search terms provided by the user were not sanitized and were used directly to construct a sql statement. The only users permitted to search are site admins. Users are advised to upgrade as soon as possible. There are not workarounds for this issue.

Frequently asked questions

What is CVE-2022-21644?: USOC is an open source CMS with a focus on simplicity. In affected versions USOC allows for SQL injection via usersearch.php. In search terms provided by the user were not sanitized and were used directly to construct a sql statement. The only users permitted to search are site admins. Users are advised to upgrade as soon as possible. There are not workarounds for this issue.
How severe is CVE-2022-21644?: CVE-2022-21644 has a CVSS 3.x base score of 9.1, rated critical 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-2022-21644 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (60th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2022-21644?: CVE-2022-21644 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-2022-21644?: 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-2022-21644 published?: CVE-2022-21644 was published on 2022-01-04 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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