CVE-2024-1380

Relevanssi – A Better Search <= 4.22.0 (Free) and <= 2.25.0 (Premium) - Missing Authorization to Unauthenticated Query Log Export

2024-02-22 00:00

Strategic Overview

Status: Patched in 4.22.1
Affected Plugin: Relevanssi – A Better Search
Affected Version: <= 4.22.0
CVSS: 5.3Medium
Weakness type: CWE-862 · Missing Authorization
CVE: CVE-2024-1380

View all Relevanssi – A Better Search vulnerabilities

At a glance

CVE-2024-1380 is a medium-severity Missing Authorization vulnerability in the Relevanssi WordPress plugin, affecting versions <= 4.22.0. It carries a CVSS score of 5.3 (reachable over the network; low attack complexity). Exploitation requires no authentication. The issue is fixed in version 4.22.1; sites on affected versions should update now. Disclosed February 2024, reported by Krzysztof Zając.

Vulnerability Overview

The Relevanssi – A Better Search plugin for WordPress is vulnerable to unauthorized access of data due to a missing capability check on the relevanssi_export_log_check() function in all versions up to, and including, 4.22.0 (Free) and 2.25.0 (Premium). This makes it possible for unauthenticated attackers to export the query log data. The vendor has indicated that they may look into adding a capability check for proper authorization control, however, this vulnerability is theoretically patched as is.

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.

CWE-862: Missing Authorization

Relevanssi <= 4.22.0 carries this weakness at relevanssi_export_log_check(), and reaching it takes no account at all. A missing authorization check means a function is reachable by anyone who can reach the endpoint, because the code never asks whether the caller is allowed to perform the action.

Any user who can reach the endpoint gets to run an action reserved for higher-privileged roles, from reading protected data to changing settings or content. For Relevanssi the fix is 4.22.1: builds <= 4.22.0 are affected, anything from 4.22.1 onward is not.

Remediation

Update to version 4.22.1, or a newer patched version

How does WordSec protect against this?

This one needs no account at all, which puts it outside what login hardening can reach; WordSec's login security narrows the account-level paths around it, and the firewall is what inspects the request itself. None of that substitutes for the fix: Relevanssi 4.22.1 closes this, and updating the plugin is the step that ends it.

Login Security
Alerts

External References

https://www.cve.org/CVERecord?id=CVE-2024-1380 https://www.wordfence.com/threat-intel/vulnerabilities/id/7b2a3b17-0551-4e02-8e6a-ae8d46da0ef8 https://nvd.nist.gov/vuln/detail/CVE-2024-1380

Related records

Same weakness class

Other vulnerabilities in Relevanssi – A Better Search

CVSS Vector

5.3

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

Base

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

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