CVE-2023-0899

Name: CVE-2023-0899
Creator: NVD / NIST
Published: 2023-04-24T19:15:09.033+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

MEDIUMCVSS 6.1/10EPSS 0.46%

Last modified Jun 17, 2026

CVE-2023-0899 is a medium-severity vulnerability rated 6.1/10 on the CVSS scale. The Steveas WP Live Chat Shoutbox WordPress plugin through 1.4.2 does not sanitise and escape a parameter before outputting it back in the Shoutbox, leading to Stored Cross-Site Scripting which could be used against high privilege users such as admins.. EPSS estimates a 0.46% chance of exploitation in the next 30 days.

Description

The Steveas WP Live Chat Shoutbox WordPress plugin through 1.4.2 does not sanitise and escape a parameter before outputting it back in the Shoutbox, leading to Stored Cross-Site Scripting which could be used against high privilege users such as admins.

Metrics

CVSS 3.1

6.1/10

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

EPSS Probability

0.46%

36.4th percentile

Probability of exploitation in the next 30 days. Learn more

Affected Software

Vendor	Product	Versions
Wp Live Chat Shoutbox Project	Wp Live Chat Shoutbox	<= 1.4.2

References

https://wpscan.com/vulnerability/e95f925f-118e-4fa1-8e8f-9dc1bc698f12Exploit, Third Party Advisory
https://wpscan.com/vulnerability/e95f925f-118e-4fa1-8e8f-9dc1bc698f12Exploit, Third Party Advisory

Timeline

Published: Apr 24, 2023
Last Modified: Jun 17, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2023-0899?

How severe is CVE-2023-0899?

CVE-2023-0899 has a CVSS score of 6.1/10 (MEDIUM severity). The EPSS model estimates a 0.46% probability of exploitation in the next 30 days.

How do I fix CVE-2023-0899?

Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2023-0899?

Run a free Strix scan to check your systems for this vulnerability.

Scan your code now

Source: NVD / NIST