CVE-2023-6257

Inline Related Posts <= 3.5.0 - Information Exposure

2024-03-21 00:00

Strategic Overview

Status: Patched in 3.6.0
Affected Plugin: Inline Related Posts
Affected Version: <= 3.5.0
CVSS: 4.3Medium
Weakness type: CWE-200 · Exposure of Sensitive Information to an Unauthorized Actor
CVE: CVE-2023-6257

View all Inline Related Posts vulnerabilities

At a glance

CVE-2023-6257 is a medium-severity Exposure of Sensitive Information to an Unauthorized Actor vulnerability in the Inline Related Posts WordPress plugin, affecting versions <= 3.5.0. It carries a CVSS score of 4.3 (reachable over the network; low attack complexity). The issue is fixed in version 3.6.0; sites on affected versions should update now. Disclosed March 2024, reported by Krzysztof Zając.

Vulnerability Overview

The Inline Related Posts plugin for WordPress is vulnerable to Sensitive Information Exposure in all versions up to, and including, 3.5.0 via the irp_get_list_posts() function. This makes it possible for authenticated attackers, with subscriber-level access and above, to retrieve the contents of 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

Inline Related Posts <= 3.5.0 carries this weakness at irp_get_list_posts(), and reaching it 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 Inline Related Posts the fix is 3.6.0: builds <= 3.5.0 are affected, anything from 3.6.0 onward is not.

Remediation

Update to version 3.6.0, or a newer patched version

How does WordSec protect against this?

The fix is the thing that ends this: Inline Related Posts 3.6.0 closes this, and updating the plugin is the step that ends it.

Alerts

External References

https://www.cve.org/CVERecord?id=CVE-2023-6257 https://www.wordfence.com/threat-intel/vulnerabilities/id/d9318d57-499b-4804-8f83-1e4a68c5790f https://nvd.nist.gov/vuln/detail/CVE-2023-6257

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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