What is CVE-2023-5238?

CVE-2023-5238 is a medium-severity vulnerability in Metagauss Eventprime, classified under Cross-site Scripting. CVSS score: 6.1/10. Published 2023-10-31.

How severe is CVE-2023-5238?

Medium severity. CVSS v3 base score is 6.1 out of 10.

Is CVE-2023-5238 known to be exploited?

1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.

XSS in Metagauss Eventprime

CVE-2023-5238

The EventPrime WordPress plugin before 3.2.0 does not sanitise and escape a parameter before outputting it back in the page, leading to an HTML Injection on the plugin in the search area of the website.

Vulnerability class: XSS (Cross-Site Scripting)

Published 2023-10-31 · last modified 2026-06-17.

CVSS v3 metric

CVSS v3 base score 6.1 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N.

EPSS exploit prediction

EPSS: 0.004 (33.8th percentile), scored 2026-09-29.

Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 34th percentile — 33.8% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.004 · newest: 0.004 · change: 0.000

Affected products

Metagauss Eventprime
Eventprime — versions 0

Weakness classification (CWE)

CWE-79 — Cross-site Scripting

Public proof-of-concept exploits

20142995/nuclei-templates

References

wpscan.com/vulnerability/47a5fbfd-f47c-4356-8567-b29dadb48423 (Exploit, technical-description, Third Party Advisory, exploit, vdb-entry)

Frequently asked questions

What is CVE-2023-5238?: CVE-2023-5238 is a medium-severity vulnerability in Metagauss Eventprime, classified under Cross-site Scripting. CVSS score: 6.1/10. Published 2023-10-31.
How severe is CVE-2023-5238?: Medium severity. CVSS v3 base score is 6.1 out of 10.
Is CVE-2023-5238 known to be exploited?: 1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.