WordPress security changelog
MEDIUM CVE-2023-4250 Modified

EventPrime: Cross-site scripting

EventPrime is affected by cross-site scripting. Exposure depends on how the affected operation is made reachable by the site. Injected script can execute in the affected site's origin when the vulnerable output is viewed.

CVE / CNA score 6.1 CVSS 3.1 · 134c704f-9b21-4f2e-91b3-4a467353bcc0
NVD score 6.1 CVSS 3.1 · nvd@nist.gov
Component
EventPrime
Plugin slug
eventprime
Affected
See vendor advisory
Safe version
See mitigation notes
Published
Oct 31, 2023
Weakness
CWE-79 — Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')

This CVE was published Oct 31, 2023 and is one of 16 known issues for this plugin.

Update, patch or deactivate.

Update EventPrime to a release outside the affected range, or disable and remove it until a fixed version is available.

No confirmed safe version is listed. Consider a vendor-supported patch or temporarily restricting the affected functionality while you assess the risk.

Deactivate only when warranted by your risk profile, or when advised by your hosting provider in the limited circumstances where the vulnerability cannot otherwise be mitigated. If you’re unsure which action is appropriate, contact Fused or your hosting provider for guidance.

Technical description

The EventPrime WordPress plugin before 3.2.0 does not sanitise and escape some parameters before outputting them back in the page, leading to a Reflected Cross-Site Scripting which could be used against high privilege users such as admin.

CVE / CNA vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N

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

Primary and upstream sources