How severe is CVE-2022-21643?

CVE-2022-21643 has a CVSS 3.x base score of 10.0, 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-2022-21643 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-2022-21643?

CVE-2022-21643 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-2022-21643?

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-2022-21643 published?

CVE-2022-21643 was published on 2022-01-04 and last updated on 2026-06-17.

CVE-2022-21643

CVE-2022-21643 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 10.0. 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 10.0)
CVSS v2: 7.5
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: 2022-01-04
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 register.php. In particular usernames, email addresses, and passwords provided by the user were not sanitized and were used directly to construct a sql statement. Users are advised to upgrade as soon as possible. There are not workarounds for this issue.

Frequently asked questions

What is CVE-2022-21643?: USOC is an open source CMS with a focus on simplicity. In affected versions USOC allows for SQL injection via register.php. In particular usernames, email addresses, and passwords provided by the user were not sanitized and were used directly to construct a sql statement. Users are advised to upgrade as soon as possible. There are not workarounds for this issue.
How severe is CVE-2022-21643?: CVE-2022-21643 has a CVSS 3.x base score of 10.0, 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-2022-21643 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-2022-21643?: CVE-2022-21643 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-2022-21643?: 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-2022-21643 published?: CVE-2022-21643 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:*:*:*:*:*:*:*:*

More vulnerabilities in Useful Simple Open-source Cms Project Useful Simple Open-source Cms

CVE-2022-21644 — Critical (CVSS 9.1): USOC is an open source CMS with a focus on simplicity. In affected versions USOC allows for SQL injection via…
CVE-2022-21666 — High (CVSS 7.2): Useful Simple Open-Source CMS (USOC) is a content management system (CMS) for programmers. Versions prior to Pb2.4Bfx3…

All CVEs affecting Useful Simple Open-source Cms Project Useful Simple Open-source Cms →

Other CWE-89 (SQL Injection) vulnerabilities

CVE-2026-54350 — Critical (CVSS 10.0): Budibase is an open-source low-code platform. Prior to 3.39.12, an unauthenticated visitor of any published Budibase…
CVE-2026-8054 — Critical (CVSS 10.0): Improper Neutralization of Special Elements used in an SQL Command ('SQL Injection') in the Publish Audit API endpoints…
CVE-2026-42287 — Critical (CVSS 10.0): Emlog is an open source website building system. Prior to version 2.6.11, direct SQL injection in article creation and…
CVE-2026-3325 — Critical (CVSS 10.0): SQL injection (SQLi) in MegaCMS v12.0.0, specifically in the “id_territorio” parameter of the…
CVE-2025-10878 — Critical (CVSS 10.0): A SQL injection vulnerability exists in the login functionality of Fikir Odalari AdminPando 1.0.1 before 2026-01-26.…
CVE-2025-57792 — Critical (CVSS 10.0): Explorance Blue versions prior to 8.14.9 contain a SQL injection vulnerability caused by insufficient validation of…

Browse all CWE-89 (SQL Injection) vulnerabilities →