VulnerabilityPublished 8 Apr 2026

CVE-2026-33273: ICZ MATCHA INVOICE · Unrestricted File Upload

Affects ICZ MATCHA INVOICESource CVE Database V5

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Not known to be exploited · CVSS 4.7 Medium.

Data as of 30 Oct 2026, 06:59 UTC

CVSS 3.0 base score

4.7Medium

How severe the flaw is on the 0–10 CVSS scale.

EPSS: 0.2% chance of exploitation in 30 days – higher than 13% of CVEsExploit Prediction Scoring System: the likelihood attackers will use this flaw soon.

CVSS:3.0/AV:N/AC:L/PR:H/UI:N/S:U/C:L/I:L/A:L

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

Bold values are the worst case: easiest to exploit or largest impact.

Attack Vector: Network: The vulnerable component is bound to the network stack and the set of possible attackers extends beyond the other options listed, up to and including the entire Internet. Such a vulnerability is often termed 'remotely exploitable' and can be thought of as an attack being exploitable at the protocol level one or more network hops away (e.g., across one or more routers).
Attack Complexity: Low: Specialized access conditions or extenuating circumstances do not exist. An attacker can expect repeatable success against the vulnerable component.
Privileges Required: High: The attacker is authorized with (i.e., requires) privileges that provide significant (e.g., administrative) control over the vulnerable component that could affect component-wide settings and files.
User Interaction: None: The vulnerable system can be exploited without any interaction from any user.
Scope: Unchanged: An exploited vulnerability can only affect resources managed by the same security authority. In this case, the vulnerable component and the impacted component are either the same, or both are managed by the same security authority.
Confidentiality: Low: There is some loss of confidentiality. Access to some restricted information is obtained, but the attacker does not have control over what information is obtained, or the amount or kind of loss is limited. The information disclosure does not cause a direct, serious loss to the impacted component.
Integrity: Low: Modification of data is possible, but the attacker does not have control over the consequence of a modification, or the amount of modification is limited. The data modification does not have a direct, serious impact on the impacted component.
Availability: Low: Performance is reduced or there are interruptions in resource availability. Even if repeated exploitation of the vulnerability is possible, the attacker does not have the ability to completely deny service to legitimate users. The resources in the impacted component are either partially available all of the time, or fully available only some of the time, but overall there is no direct, serious consequence to the impacted component.

Definitions: FIRST CVSS v3.1 specification.

Exploitation evidence

Disclosed: evidence found.
CVE published 8 Apr 2026
Detectable: no evidence on record.
No public nuclei template indexed
Weaponized: no evidence on record.
No public exploit code indexed in Metasploit or Exploit-DB
Exploited in the wildExploited: no evidence on record.
Not in CISA KEV and no source reports exploitation
Observed by OffSeq MirageSeen by Mirage: no evidence on record.
No attack traffic recorded by OffSeq Mirage sensors

A missing step is not evidence of safety. Sources: cve.org (opens in a new tab), the Metasploit, Exploit-DB and nuclei-templates index as of 29 Oct 2026.

Disclosed: The CVE record is public on cve.org. Its publication is t = 0.
Detectable: A public nuclei template can find exposed instances, for defenders and attackers alike.
Weaponized: A Metasploit exploit module or Exploit-DB entry exists (Metasploit scanner modules do not count), or CISA SSVC or the CVSS exploit maturity reports a public proof of concept.
Exploited in the wild: CISA KEV lists it, CISA SSVC rates exploitation active, or a source reports attacks.
Observed by OffSeq Mirage: OffSeq Mirage honeypot sensors recorded attack traffic for this CVE, or found exposed hosts without attack traffic.

Moments are spaced evenly, not to scale; a dashed line marks a gap of six months or more. Deltas count from t = 0. Sources that give only a date (CISA KEV, Exploit-DB, or a time of exactly 00:00Z) read “same day” rather than hours. Metasploit modules carry the flaw’s disclosure date, not their release date, and nuclei templates carry no date, so both appear above but not on the timeline.

What to do

Affected software

Product	Affected	Fixed in
ICZ CorporationMATCHA INVOICE	Affected =2.6.6 and earlier	Fixed in–

AI-suggested

Until an official fix is available, restrict administrator access to trusted personnel only and monitor for suspicious file uploads. Avoid granting unnecessary administrator privileges to reduce risk.

Description

CVE-2026-33273 is a vulnerability in ICZ Corporation's MATCHA INVOICE version 2.6.6 and earlier that allows an administrator to upload files of dangerous types without restriction. Exploitation of this vulnerability can lead to arbitrary file creation on the server, potentially enabling execution of arbitrary code. The vulnerability has a medium severity rating with a CVSS score of 4.7. No official patch or remediation guidance has been provided yet, and there are no known exploits in the wild at this time.

Impact

Successful exploitation allows an administrator to create arbitrary files on the server, which may lead to execution of arbitrary code. This can compromise the server's integrity and availability. The impact is limited by the requirement for administrator privileges, reducing the likelihood of exploitation by lower-privileged users.

Summary

This vulnerability involves unrestricted file upload functionality in MATCHA INVOICE 2.6.6 and earlier versions. An attacker with administrator privileges can upload files with dangerous types, which may result in arbitrary file creation on the server. This can lead to arbitrary code execution, posing a risk to the integrity and availability of the affected system. The CVSS 3.0 base score is 4.7, reflecting medium severity with network attack vector, low attack complexity, and requiring high privileges but no user interaction.

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Exploitation evidence

What to do

Affected software

Description

AI analysisMachine-generated, updated 15 Apr 2026, 15:55 UTC

Technical details

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