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CVE-2024-3191· NVD / CVE Program· CNA VulDB

MailCleaner Email os command injection

A vulnerability, which was classified as critical, has been found in MailCleaner up to 2023.03.14. This issue affects some unknown processing of the component Email Handler. The manipulation leads to os command injection. The attack may be initiated remotely. The exploit has been disclosed to the public and may be used. It is recommended to apply a patch to fix this issue. The associated identifier of this vulnerability is VDB-262307.

CriticalCVSS 9.8 · v3.1—No exploit No fix recorded
Published
Apr 29, 2024
Updated
Jun 17, 2026
EPSS
5.2% · 92th percentile
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Report tools

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Action score

41

Plan

Add it to your regular patch cycle.

CVSS
39 / 40 · 9.8 / 10
CISA KEV
0 / 30 · Not listed
EPSS
2 / 30 · 5.2%

CISA SSVC decision

Exploitation
none
Automatable
no
Technical impact
total

Vulnrichment: CISA's decision-tree inputs.

CNA vs NVD score

NVD
9.8
CNA · VulDB
9.8
agree

The score given by the assigning authority versus NVD’s independent score. A gap means the severity is contested.

Noroxi analysis

No Noroxi analysis for this record yet

We don't hand-write analysis for the hundreds of thousands of vulnerabilities in the database; that wouldn't be honest. For notable, high-impact vulnerabilities our team writes the mechanism, detection and remediation steps.

We use this product, ask for help

Affected systems

VendorProduct
mailcleanermailcleaner

Affected versions

NVD version ranges (for catalog products). Add the product to your stack with a version and matching uses these.

  • mailcleaner mailcleanerup to 2023.03.14 inclusive

Versions reported by the vendor

Affected version ranges reported by the assigning authority (VulDB). Independent of NVD's CPE analysis and usually ahead of it.

  • n/a MailCleaner

    • 2023.03.0, 2023.03.1, 2023.03.2, 2023.03.3, 2023.03.4, 2023.03.5, 2023.03.6, 2023.03.7, 2023.03.8, 2023.03.9, 2023.03.10, 2023.03.11 … (+3)affected

Same product

mailcleaner: all records

Other highest-scoring records for the same primary product.

  • CVE-2018-20323www/soap/application/MCSoap/Logs.php in MailCleaner Community Edition 2018.08 allows remote attackers to execute arbitrary OS commands.
    51Plan
  • CVE-2024-3192MailCleaner Admin Interface cross site scripting
    38Monitor
  • CVE-2024-3193MailCleaner Admin Endpoints os command injection
    36Monitor
  • CVE-2019-1010246MailCleaner before c888fbb6aaa7c5f8400f637bcf1cbb844de46cd9 is affected by: Unauthenticated MySQL database password information disclosure.
    30Monitor
  • CVE-2024-3195MailCleaner Admin Endpoints path traversal
    28Monitor
  • CVE-2024-3196MailCleaner SOAP Service dumpConfiguration os command injection
    26Monitor

Remediation

Which version to upgrade to

Fix versions compiled from the vendor, package registries and Microsoft. Verify the vendor's note before upgrading.

No fix version is recorded for this entry. Check the references for vendor advisories.

Exploit status

No known public exploit

No public exploit has been observed yet. That doesn't mean you're safe, only that the bar is a little higher.

Research context

For pentesters and researchers: attack profile, score disagreement, timeline, patch commits, credits, variant and chain candidates, bug bounty scope. All derived from existing data; no exploit code.

Timeline

From publication to today: proof of concept, Metasploit module, CISA KEV and fix record. Dates are as reported by the sources.

No dated events beyond publication.

EPSS, last 120 days

FIRST EPSS daily score; only changes of 0.01 or more are recorded (step chart).

Patch and commit links

Commit, PR and diff links among the references. A starting point for patch-diffing and variant hunting; fixes, not exploits.

Credits

All researchers

Finders, reporters and analysts named in the CNA record. Click a name for that researcher’s other records.

Variant candidates

Same product, same weakness class, within 18 months. If the patch missed the root cause, the sibling bug is here.

  • CVE-2024-31930 days apartMailCleaner Admin Endpoints os command injection
    36Monitor
  • CVE-2024-31960 days apartMailCleaner SOAP Service dumpConfiguration os command injection
    26Monitor

Chain candidates

An authentication bypass and a privilege-requiring bug in the same product, published close together: combined they may become an unauthenticated path.

—

Bug bounty scope

No known public program.

Source: bounty-targets-data (public HackerOne, Bugcrowd, Intigriti, YesWeHack listings).

Technical details

Attack conditions

  • Anyone who can reach it over the internet can trigger it.
  • No account or password is required.
  • No user action is required.
  • No special conditions are required; it is repeatable.

If successful

Confidentiality
high · data can be read
Integrity
high · data or configuration can be modified
Availability
high · the service can be disrupted
Attack vector
Network
Attack complexity
Low
Privileges required
None
User interaction
None
Scope
Unchanged
Confidentiality impact
High
Integrity impact
High
Availability impact
High

Weakness class (CWE)

CWE-78 · Improper Neutralization of Special Elements used in an OS Command ('OS Command Injection')

CVSS vector

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

nvd-primary

Root cause

User input is inserted as text into a shell command. The shell may interpret special characters in the input as part of the command.

The bug in code

The whole CWE-78 class

A representative example of this vulnerability class. Not the vendor's source code; it shows the faulty pattern and its fix.

Vulnerable

ts
const host = req.body.host;exec("ping -c 1 " + host, onResult);

Fixed

ts
const host = req.body.host;if (!/^[a-z0-9.-]{1,253}$/i.test(host)) return res.sendStatus(400);execFile("ping", ["-c", "1", host], onResult);

Attack context

MITRE CAPEC attack patterns and ATT&CK techniques for this weakness class (CWE). A starting point for detection rules and threat hunting.

ATT&CK techniques

—

Change log

No changes recorded on tracked fields yet. Score, KEV, exploit maturity and fix status changes appear here.

References

Vendor advisories and official records. Exploit/PoC links are deliberately left out.

All records