CVE-2024-2125

EnvíaloSimple: Email Marketing y Newsletters <= 2.3 - Cross-Site Request Forgery to Arbitrary File Upload

2024-04-01 00:00

Strategic Overview

Status: Patched in 2.4
Affected Plugin: EnvíaloSimple: Email Marketing y Newsletters
Affected Version: <= 2.3
CVSS: 8.8High
Weakness type: CWE-434 · Unrestricted Upload of File with Dangerous Type
CVE: CVE-2024-2125

View all EnvíaloSimple: Email Marketing y Newsletters vulnerabilities

At a glance

CVE-2024-2125 is a high-severity Unrestricted Upload of File with Dangerous Type vulnerability in the EnvíaloSimple WordPress plugin, affecting versions <= 2.3. It carries a CVSS score of 8.8 (reachable over the network; low attack complexity; high confidentiality, integrity, availability impact). Exploitation requires no authentication. The issue is fixed in version 2.4; sites on affected versions should update now. Disclosed April 2024, reported by Francesco Carlucci.

Vulnerability Overview

The EnvíaloSimple: Email Marketing y Newsletters plugin for WordPress is vulnerable to Cross-Site Request Forgery in all versions up to, and including, 2.3. This is due to missing or incorrect nonce validation on the gallery_add function. This makes it possible for unauthenticated attackers to upload malicious files via a forged request granted they can trick a site administrator into performing an action such as clicking on a link. The Cross-Site Request Forgery was patched in 2.4, however, nothing was done about the ability to upload arbitrary files.

Technical Analysis

The vector marks this flaw as remotely reachable over the network, with low attack complexity — no special timing or configuration is needed, and no privileges on the target site. A successful exploit has high impact on confidentiality, integrity, availability — full site compromise territory.

CWE-434: Unrestricted Upload of File with Dangerous Type

Reaching this weakness in EnvíaloSimple <= 2.3 takes a caller who can reach the endpoint. An unrestricted file upload lets a caller store a file whose type or destination the application does not properly constrain.

If an uploaded file lands anywhere the server will execute, the flaw becomes remote code execution and the site should be treated as fully compromised. For EnvíaloSimple the fix is 2.4: builds <= 2.3 are affected, anything from 2.4 onward is not.

Remediation

Update to version 2.4, or a newer patched version

How does WordSec protect against this?

The attempt arrives as an ordinary request to EnvíaloSimple: WordSec's web application firewall inspects request payloads before WordPress loads them. Classes like this one can leave something behind, so the staged malware scanner is the second half: it looks for dropped files and modified code rather than for the request that created them. None of that substitutes for the fix: EnvíaloSimple 2.4 closes this, and updating the plugin is the step that ends it.

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External References

https://www.cve.org/CVERecord?id=CVE-2024-2125 https://www.wordfence.com/threat-intel/vulnerabilities/id/2b39abc8-9281-4d58-a9ec-877c5bae805a https://nvd.nist.gov/vuln/detail/CVE-2024-2125

Related records

Other vulnerabilities in EnvíaloSimple: Email Marketing y Newsletters

CVSS Vector

8.8

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

Base

Attack VectorNetwork
Attack ComplexityLow
Privileges RequiredNone
User InteractionRequired
ScopeUnchanged
ConfidentialityHigh
IntegrityHigh
AvailabilityHigh

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