CVE-2020-21250

CRITICAL

CSZ CMS v1.2.4 was discovered to contain an arbitrary file upload vulnerability in the component /core/MY_Security.php.

Affects 1 product across 1 vendor.

CVSS 3.19.8
EPSS1.2%
Percentile67th
PatchPatched
CVSS Vector — Plain English Remotely exploitable over the network, low complexity, no authentication required, no user interaction needed, impact contained to the vulnerable component, full confidentiality impact, full integrity impact, full availability impact.
CWE Weakness Definitions
CWE-89: SQL Injection

Attacker inserts SQL commands into application queries through user-controlled input, allowing unauthorized database access.

Related Attack Patterns (CAPEC)
CAPEC-7 Blind SQL Injection
via CWE-89
CAPEC-108 Command Line Execution through SQL Injection
via CWE-89
CAPEC-109 Object Relational Mapping Injection
via CWE-89
CAPEC-110 SQL Injection through SOAP Parameter Tampering
via CWE-89
CAPEC-470 Expanding Control over the Operating System from the Database
via CWE-89
Show all 6
via CWE-89

Mapping is CWE-to-CAPEC per MITRE CAPEC 3.9.

◆ AI Analysis — automated analysis, not human-reviewed

CSZ CMS v1.2.4 contains a critical arbitrary file upload vulnerability in the /core/MY_Security.php component, allowing attackers to upload malicious files to the server.

BSID: BS-2021-GLOBAL-016428-C • Model: /workspace/models/qwen2.5-coder-32b-instruct-bf16 • Confidence: HIGH

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Frequently Asked Questions
What is CVE-2020-21250?
CSZ CMS v1.2.4 contains a critical arbitrary file upload vulnerability in the /core/MY_Security.php component, allowing attackers to upload malicious files to the server.
What is the CVSS score for CVE-2020-21250?
CVE-2020-21250 has CVSS 9.8 (Critical). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H. EPSS: 1.2%.
Is CVE-2020-21250 actively exploited?
No confirmed active exploitation of CVE-2020-21250 as of 2026-05-30.
How do I remediate CVE-2020-21250?
Priority: IMMEDIATE.
What systems are affected by CVE-2020-21250?
CVE-2020-21250 affects Cszcms Csz Cms.
Vulnerability Details
CVE IDCVE-2020-21250
BSIDBS-2021-GLOBAL-016428-C BreachSpider Global ID
CVSS VectorCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Published2021-10-27
Last Modified2024-11-21
ICS Relevance0%
Weakness (CWE)
SQL Injection
SourceNVD
Official Description

CSZ CMS v1.2.4 was discovered to contain an arbitrary file upload vulnerability in the component /core/MY_Security.php.

Source: NIST NVD / MITRE CVE Database

Attack Vector Analysis — CITED Relevance

An attacker can exploit this vulnerability by uploading a malicious file through the affected component, which could lead to remote code execution and full control of the server.

Exploitation Likelihood: CRITICAL

Affected Products
VendorProductAffected Versions
Cszcms Csz Cms 1.2.4
Remediation

No official vendor advisory link on record. See the CVE record →

Threat Intelligence
● Threat Intelligence Validated: October 2026 | Threat Age: 1814 Days
CISA known-exploitedNot in KEV catalog
Public ExploitNot confirmed
PoC CodeNot confirmed
AI Enrichment Record — provenance & audit hash
Model/workspace/models/qwen2.5-coder-32b-instruct-bf16
ConfidenceHIGH
Enriched At2026-05-24
SHA-512 Audit Hash304242d04e7f73926f0fa53521f90a77aac74c115d422f0fe51cb92591dcf5edf3cbf6058f1caa95162cee02e183114cb76b91814087b0f6d2993132f5d1a1c0
Related CVEs affecting Cszcms
CVE-2022-27162 9.8 CSZ CMS 1.2.2 is vulnerable to SQL Injection via cszcms_admin_Members_editUser CVE-2019-15524 9.8 CSZ CMS 1.2.3 allows arbitrary file upload, as demonstrated by a .php file to... CVE-2019-13086 9.8 core/MY_Security.php in CSZ CMS 1.2.2 before 2019-06-20 has member/login/chec... CVE-2022-27161 9.8 Csz Cms 1.2.2 is vulnerable to SQL Injection via cszcms_admin_Members_viewUsers CVE-2022-27163 9.8 CSZ CMS 1.2.2 is vulnerable to SQL Injection via cszcms_admin_Users_editUser
View all Cszcms CVEs →

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