CVE-2023-0423

Name: CVE-2023-0423
Creator: NVD / NIST
Published: 2023-04-10T14:15:08.35+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

MEDIUMCVSS 4.8/10EPSS 0.44%

Last modified Jun 17, 2026

CVE-2023-0423 is a medium-severity vulnerability rated 4.8/10 on the CVSS scale. The WordPress Amazon S3 Plugin WordPress plugin before 1.6 does not sanitise and escape a parameter before outputting it back in the page, leading to a Reflected Cross-Site Scripting which could be used against high privilege users such as admin. EPSS estimates a 0.44% chance of exploitation in the next 30 days.

Description

The WordPress Amazon S3 Plugin WordPress plugin before 1.6 does not sanitise and escape a parameter before outputting it back in the page, leading to a Reflected Cross-Site Scripting which could be used against high privilege users such as admin

Metrics

CVSS 3.1

4.8/10

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

EPSS Probability

0.44%

35.3th percentile

Probability of exploitation in the next 30 days. Learn more

Affected Software

Vendor	Product	Versions
Wordpress Amazon S3 Project	Wordpress Amazon S3	< 1.6

References

https://wpscan.com/vulnerability/73d588d7-26ae-42e2-8282-aa02bcb109b6Exploit, Third Party Advisory
https://wpscan.com/vulnerability/73d588d7-26ae-42e2-8282-aa02bcb109b6Exploit, Third Party Advisory

Timeline

Published: Apr 10, 2023
Last Modified: Jun 17, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2023-0423?

How severe is CVE-2023-0423?

CVE-2023-0423 has a CVSS score of 4.8/10 (MEDIUM severity). The EPSS model estimates a 0.44% probability of exploitation in the next 30 days.

How do I fix CVE-2023-0423?

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-2023-0423?

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

Scan your code now

Source: NVD / NIST