CVE-2023-0331

Correos Oficial <= 1.3.0.0 - Unauthenticated Arbitrary File Download

2023-01-31 00:00

Strategic Overview

Status: Unpatched
Affected Plugin: Correos Oficial
Affected Version: <= 1.3.0.0
CVSS: 7.5High
Weakness type: CWE-73 · External Control of File Name or Path
CVE: CVE-2023-0331

View all Correos Oficial vulnerabilities

At a glance

CVE-2023-0331 is a high-severity External Control of File Name or Path vulnerability in the Correos Oficial WordPress plugin, affecting versions <= 1.3.0.0. It carries a CVSS score of 7.5 (reachable over the network; low attack complexity; high confidentiality impact). Exploitation requires no authentication. No fixed release has been reported yet; treat installations running this software as exposed. Disclosed January 2023, reported by Andrea Iodice.

Vulnerability Overview

The Correos Oficial plugin for WordPress is vulnerable to the unauthorized download of files in versions up to, and including, 1.3.0.0. This is due to insufficient validation on the supplied file path of a document being downloads. This makes it possible for unauthenticated attackers to download arbitrary files, such as sensitive configuration files like wp-config.php.

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, and no interaction from a victim user. A successful exploit has high impact on confidentiality.

CWE-73: External Control of File Name or Path

The product allows user input to control or influence paths or file names that are used in filesystem operations.

Remediation

No known patch available. Please review the vulnerability's details in depth and employ mitigations based on your organization's risk tolerance. It may be best to uninstall the affected software and find a replacement.

How does WordSec protect against this?

Requests carrying this pattern arrive without a session, so nothing upstream of the firewall gets a chance to reject them: 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. No patched version is recorded yet, which is the case where a filtering layer matters most, because there is nothing to update to.

Firewall
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Login Security

External References

https://www.cve.org/CVERecord?id=CVE-2023-0331 https://www.wordfence.com/threat-intel/vulnerabilities/id/6eed2941-d9fe-4020-b1ab-fb0885f47d80 https://nvd.nist.gov/vuln/detail/CVE-2023-0331

CVSS Vector

7.5

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

Base

Attack VectorNetwork
Attack ComplexityLow
Privileges RequiredNone
User InteractionNone
ScopeUnchanged
ConfidentialityHigh
IntegrityNone
AvailabilityNone

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