CVE-2023-4251

EventPrime < 3.2.0 - Cross-Site Request Forgery

2023-10-09 00:00

Strategic Overview

Status: Patched in 3.2.0
Affected Plugin: EventPrime – Events Calendar, Bookings, Tickets & AI
Affected Version: < 3.2.0
CVSS: 4.3Medium
Weakness type: CWE-352 · Cross-Site Request Forgery (CSRF)
CVE: CVE-2023-4251

View all EventPrime – Events Calendar, Bookings, Tickets & AI vulnerabilities

At a glance

CVE-2023-4251 is a medium-severity Cross-Site Request Forgery (CSRF) vulnerability in the EventPrime WordPress plugin, affecting versions < 3.2.0. It carries a CVSS score of 4.3 (reachable over the network; low attack complexity). Exploitation requires no authentication. The issue is fixed in version 3.2.0; sites on affected versions should update now. Disclosed October 2023, reported by Alex Sanford.

Vulnerability Overview

The EventPrime plugin for WordPress is vulnerable to Cross-Site Request Forgery in versions up to 3.2.0. This is due to missing or incorrect nonce validation one of its functions. This makes it possible for unauthenticated attackers to create event bookings via a forged request granted they can trick a site administrator into performing an action such as clicking on a link. CVE-2023-5519 appears to be a duplicate assignment for this issue.

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.

CWE-352: Cross-Site Request Forgery (CSRF)

Reaching this weakness in EventPrime < 3.2.0 takes a caller who can reach the endpoint. Cross-site request forgery abuses the fact that browsers attach a victim's cookies to any request, so a state-changing action that only checks who you are, not whether you meant to act, can be triggered from another site.

An attacker who gets a logged-in user to load a crafted page can perform that action as them, with the impact scaling to whatever the victim's role is allowed to do. For EventPrime the fix is 3.2.0: builds < 3.2.0 are affected, anything from 3.2.0 onward is not.

Remediation

Update to version 3.2.0, or a newer patched version

How does WordSec protect against this?

The attempt arrives as an ordinary request to EventPrime: WordSec's web application firewall inspects request payloads before WordPress loads them. None of that substitutes for the fix: EventPrime 3.2.0 closes this, and updating the plugin is the step that ends it.

Firewall
Alerts

External References

https://www.cve.org/CVERecord?id=CVE-2023-4251 https://www.wordfence.com/threat-intel/vulnerabilities/id/e8ffdd43-b353-4296-bcb6-978751aae1b6 https://nvd.nist.gov/vuln/detail/CVE-2023-4251

Related records

Other vulnerabilities in EventPrime – Events Calendar, Bookings, Tickets & AI

CVSS Vector

4.3

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

Base

Attack VectorNetwork
Attack ComplexityLow
Privileges RequiredNone
User InteractionRequired
ScopeUnchanged
ConfidentialityNone
IntegrityLow
AvailabilityNone

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