CVE-2024-1376

Event post <= 5.9.4 - Missing Authorization

2024-05-23 18:07

Strategic Overview

Status: Patched in 5.9.5
Affected Plugin: Event Post
Affected Version: <= 5.9.4
CVSS: 4.3Medium
Weakness type: CWE-284 · Improper Access Control
CVE: CVE-2024-1376

At a glance

CVE-2024-1376 is a medium-severity Improper Access Control vulnerability in the Event Post WordPress plugin, affecting versions <= 5.9.4. It carries a CVSS score of 4.3 (reachable over the network; low attack complexity). The root cause is a missing authorization check on a reachable function. The issue is fixed in version 5.9.5; sites on affected versions should update now. Disclosed May 2024, reported by Francesco Carlucci.

Vulnerability Overview

The Event post plugin for WordPress is vulnerable to unauthorized bulk metadata update due to a missing capability check on the save_bulkdatas function in all versions up to, and including, 5.9.4. This makes it possible for authenticated attackers, with subscriber access or higher, to update post_meta_data.

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-284: Improper Access Control

Reaching this weakness in Event Post <= 5.9.4 takes a caller who can reach the endpoint. Improper access control means the code decides what a caller may do using something other than their actual permissions, so the decision can be wrong without any check appearing to be missing.

Whoever can shape the request decides the answer, so the protected action runs for callers the code never meant to allow. For Event Post the fix is 5.9.5: builds <= 5.9.4 are affected, anything from 5.9.5 onward is not.

Remediation

Update to version 5.9.5, or a newer patched version

How does WordSec protect against this?

Because it turns on account access, WordSec's login security is the relevant layer: role-based two-factor, captcha and brute-force limits raise the cost of getting the account this needs. None of that substitutes for the fix: Event Post 5.9.5 closes this, and updating the plugin is the step that ends it.

Login Security
Alerts

External References

https://www.cve.org/CVERecord?id=CVE-2024-1376 https://www.wordfence.com/threat-intel/vulnerabilities/id/926c09d5-3824-4745-99f6-50d9c945d252 https://nvd.nist.gov/vuln/detail/CVE-2024-1376

Related records

CVSS Vector

4.3

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

Base

Attack VectorNetwork
Attack ComplexityLow
Privileges RequiredLow
User InteractionNone
ScopeUnchanged
ConfidentialityNone
IntegrityLow
AvailabilityNone

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