Cyber Resilience

CVE-2021-28999

HighPublic PoC

Published: 08 May 2023

Published
08 May 2023
Modified
29 January 2025
KEV Added
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Patch
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CVSS Score v3.1 8.8 CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
EPSS Score 0.0067 71.8th percentile
Risk Priority 18 60% EPSS · 20% KEV · 20% CVSS

Summary

CVE-2021-28999 is a high-severity SQL Injection (CWE-89) vulnerability in Cmsmadesimple Cms Made Simple. Its CVSS base score is 8.8 (High).

Operationally, ranked in the top 28.2% of CVEs by exploit likelihood; it is not currently listed in the CISA KEV catalog; a public proof-of-concept is referenced.

EU & UK References

Vulnerability details

SQL Injection vulnerability in CMS Made Simple through 2.2.15 allows remote attackers to execute arbitrary commands via the m1_sortby parameter to modules/News/function.admin_articlestab.php.

CWE(s)
CWE-89

Related Threats

No named actor attribution yet. ATT&CK technique mapping in progress for this CVE.

Affected Assets

cmsmadesimple
cms made simple
≤ 2.2.15

Mitigating Controls

Likely Mitigating Controls AI

Per-CVE control mapping for this CVE has not run yet; the list below is derived from the weakness types (CWEs) cited in the NVD entry.

CA-8 Penetration Testing
addresses: CWE-89

Penetration testing uses SQL injection payloads against database interfaces, identifying and supporting fixes for SQL injection weaknesses.

SI-10 Information Input Validation
addresses: CWE-89

Validates query inputs to prevent SQL syntax or command manipulation.

References