CVE-2023-1371

W4 Post List <= 2.4.5 - Information Disclosure via post_excerpt

2023-03-22 00:00

Strategic Overview

Status: Patched in 2.4.6
Affected Plugin: W4 Post List
Affected Version: <= 2.4.5
CVSS: 4.3Medium
Weakness type: CWE-200 · Exposure of Sensitive Information to an Unauthorized Actor
CVE: CVE-2023-1371

At a glance

CVE-2023-1371 is a medium-severity Exposure of Sensitive Information to an Unauthorized Actor vulnerability in the W4 Post List WordPress plugin, affecting versions <= 2.4.5. It carries a CVSS score of 4.3 (reachable over the network; low attack complexity). The issue is fixed in version 2.4.6; sites on affected versions should update now. Disclosed March 2023, reported by Erwan LR.

Vulnerability Overview

The W4 Post List plugin for WordPress is vulnerable to Sensitive Information Exposure in versions up to, and including, 2.4.5 via the post_excerpt function. This can allow authenticated attackers, with subscriber-level permissions and above, to view password protected posts.

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 interaction from a victim user.

CWE-200: Exposure of Sensitive Information to an Unauthorized Actor

Reaching this weakness in W4 Post List <= 2.4.5 takes a caller who can reach the endpoint. Sensitive information exposure means data the application intended to keep internal is returned to a caller who should not be able to see it.

The disclosed data — credentials, tokens, customer records or internal paths — is usually worth more as material for a follow-up attack than as an end in itself. For W4 Post List the fix is 2.4.6: builds <= 2.4.5 are affected, anything from 2.4.6 onward is not.

Remediation

Update to version 2.4.6, or a newer patched version

How does WordSec protect against this?

The fix is the thing that ends this: W4 Post List 2.4.6 closes this, and updating the plugin is the step that ends it.

Alerts

External References

https://www.cve.org/CVERecord?id=CVE-2023-1371 https://www.wordfence.com/threat-intel/vulnerabilities/id/5ac7408d-8ec7-415b-bf52-024182888cb4 https://nvd.nist.gov/vuln/detail/CVE-2023-1371

Related records

CVSS Vector

4.3

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

Base

Attack VectorNetwork
Attack ComplexityLow
Privileges RequiredLow
User InteractionNone
ScopeUnchanged
ConfidentialityLow
IntegrityNone
AvailabilityNone

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