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Microweber CVE-2022-0930

MEDIUM
Unrestricted Upload of File with Dangerous Type (CWE-434)
2022-03-12 security@huntr.dev
4.8
CVSS 3.1 · NVD
View

Vulnerability Assessment

Weakness
CWE
OWASP Top 10:2025
A06:2025 - Insecure Design
ASVS 5.0
V5 - File Handling File type validation, storage isolation
MITRE ATT&CK

2 techniques across 2 tactics: Command and Control, Persistence

The technique list with ATT&CK links and the kill-chain view is part of the Basic plan and up.

Impact

CVSS score of 4.8 (MEDIUM). Attack characteristics: network attack vector, low complexity, high privileges required, user interaction required. Public proof-of-concept exploit code is available.

Exploit ScenarioDerived

A remote attacker could upload malicious files that can be executed on the server by sending crafted requests to the affected application.

This Month Plan within 30 days. Why: MEDIUM severity (CVSS 4.0-6.9).
Patch available 0.9% exploitation probability (EPSS)

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AnalysisAI

File upload filter bypass leading to stored XSS in GitHub repository microweber/microweber prior to 1.2.12. Rated medium severity (CVSS 4.8), this vulnerability is remotely exploitable, low attack complexity. Public exploit code available.

RemediationAI

A vendor patch is available. Apply the latest security update as soon as possible. Validate file types server-side, store uploads outside webroot, use random filenames, scan for malware.

Affected Packages

composer microweber/microweber fix: 1.2.12

Source: OSV (Open Source Vulnerabilities)

Affects your stack

Affects 1 package in composer

Checking this CVE against your own stacks and servers is part of the Basic plan and up.

Technical ContextAI · show details

This vulnerability is classified as Unrestricted File Upload (CWE-434), which allows attackers to upload malicious files that can be executed on the server. File upload filter bypass leading to stored XSS in GitHub repository microweber/microweber prior to 1.2.12. Affected products include: Microweber. Version information: prior to 1.2.12..

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  • Exploit and PoC references, threat intelligence from 22 sources

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Severity by source

NVD PRIMARY 4.8 MEDIUM
AV:N/AC:L/PR:H/UI:R/S:C/C:L/I:L/A:N

Primary rating from NVD · only source for this CVE.

CVSS VectorNVD

Attack Vector
Network
Attack Complexity
Low
Privileges Required
High
User Interaction
Required
Scope
Changed
Confidentiality
Low
Integrity
Low
Availability
None

DescriptionNVD

File upload filter bypass leading to stored XSS in GitHub repository microweber/microweber prior to 1.2.12.

Threat Intelligence Overview

EPSS Score
0.9%
Top 45% exploitable
Exploit
POC
Public exploit code exists
Data Quality
3 sources
Confidence: Low

How this decision was reached

The engine reads each signal below and applies a fixed list of rules from top to bottom. The first rule that matches sets the recommended action – like a statement, every line is shown.

SignalValue
Severity MEDIUM
CISA KEV No
Public POC Yes
EPSS 0.9%
Patch available Yes
Active threat No
Deciding rule
MEDIUM severity (CVSS 4.0-6.9)
What every action level means
Emergency Immediate action required. Criteria: CRITICAL + in CISA KEV (actively exploited) without patch, OR CRITICAL + EPSS > 30% without patch, OR CRITICAL + active threat signals without patch.
Act Now Prioritize within 24-48h. Criteria: in KEV with patch available, OR CRITICAL + public POC, OR HIGH + EPSS > 10%, OR CRITICAL + active threat, OR any CRITICAL severity.
This Week Schedule remediation this week. Criteria: HIGH severity (CVSS 7.0-8.9). Patch within normal change window.
This Month Plan within 30 days. Criteria: MEDIUM severity (CVSS 4.0-6.9), lower exploitation probability. Include in regular patch cycle.
Monitor Track and reassess. Criteria: LOW severity (CVSS 0.1-3.9), minimal exploitation risk. No immediate action needed.

SSVC AssessmentENISA

SSVC Decision· derived
Scheduled
Exploitation· derived
Poc
System Exposure· derived
Open
Automatable· derived
No
Human Impact· derived
Medium

Priority Score

45
Low Medium High Critical
KEV: 0
EPSS: +1
CVSS: +24
PoC: +20
Weaponized: 0
Threat intel: 0
Gov advisory: 0

Attack Technique

Cross-Site Scripting occurs when an application accepts untrusted data and sends it to a web browser without proper validation or encoding.

Malicious file upload attacks exploit insufficient validation when web applications accept user-provided files.

Affected Products (CPE)NVD

cpe:2.3:a:microweber:microweber:*:*:*:*:*:*:*:*
CVE-2025-34076 MEDIUM POC
6.1 Jul 02

Authenticated arbitrary file disclosure in Microweber CMS 1.2.11 and earlier lets any logged-in user read files from the

CVE-2023-1877 CRITICAL POC
9.8 Apr 05

Command Injection in GitHub repository microweber/microweber prior to 1.3.3. Rated critical severity (CVSS 9.8), this vu

CVE-2022-2368 CRITICAL POC
9.8 Jul 11

Authentication Bypass by Spoofing in GitHub repository microweber/microweber prior to 1.2.20. Rated critical severity (C

CVE-2022-0895 CRITICAL POC
9.8 Mar 10

Static Code Injection in GitHub repository microweber/microweber prior to 1.3. Rated critical severity (CVSS 9.8), this

CVE-2026-65694 HIGH POC
8.7 Jul 23

Unauthenticated arbitrary file read in Microweber CMS through version 2.0.20 lets remote attackers retrieve sensitive fi

CVE-2023-49052 HIGH POC
8.8 Nov 30

File Upload vulnerability in Microweber v.2.0.4 allows a remote attacker to execute arbitrary code via a crafted script

CVE-2022-33012 HIGH POC
8.8 Nov 22

Microweber v1.2.15 was discovered to allow attackers to perform an account takeover via a host header injection attack.

CVE-2022-1631 HIGH POC
8.8 May 09

Users Account Pre-Takeover or Users Account Takeover. Rated high severity (CVSS 8.8), this vulnerability is remotely exp

CVE-2022-0896 HIGH POC
8.8 Mar 09

Improper Neutralization of Special Elements Used in a Template Engine in GitHub repository microweber/microweber prior t

CVE-2018-17104 HIGH POC
8.8 Sep 16

An issue was discovered in Microweber 1.0.7. Rated high severity (CVSS 8.8), this vulnerability is remotely exploitable,

CVE-2026-65693 HIGH POC
8.6 Jul 24

Authenticated administrators can execute arbitrary OS commands on Microweber CMS through 2.0.20 by injecting unsandboxed

CVE-2014-9464 HIGH POC
7.5 Jan 03

SQL injection vulnerability in Category.php in Microweber CMS 0.95 before 20141209 allows remote attackers to execute ar

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