CVE-2023-5843

Name: CVE-2023-5843
Creator: NVD / NIST
Published: 2023-10-30T14:15:10.253+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

CRITICALCVSS 9.8/10EPSS 2.20%

Last modified Jun 17, 2026

CVE-2023-5843 is a critical-severity vulnerability rated 9.8/10 on the CVSS scale. The Ads by datafeedr.com plugin for WordPress is vulnerable to Remote Code Execution in versions up to, and including, 1.1.3 via the 'dfads_ajax_load_ads' function. This allows unauthenticated attackers to execute code on the server. EPSS estimates a 2.20% chance of exploitation in the next 30 days.

Description

The Ads by datafeedr.com plugin for WordPress is vulnerable to Remote Code Execution in versions up to, and including, 1.1.3 via the 'dfads_ajax_load_ads' function. This allows unauthenticated attackers to execute code on the server. The parameters of the callable function are limited, they cannot be specified arbitrarily.

Metrics

CVSS 3.1

9.8/10

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

EPSS Probability

2.20%

80.2th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

CWE-94

Affected Software

Vendor	Product	Versions
Datafeedr	Ads By Datafeedr.Com	<= 1.1.3

References

Timeline

Published: Oct 30, 2023
Last Modified: Jun 17, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2023-5843?

How severe is CVE-2023-5843?

CVE-2023-5843 has a CVSS score of 9.8/10 (CRITICAL severity). The EPSS model estimates a 2.20% probability of exploitation in the next 30 days.

How do I fix CVE-2023-5843?

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-2023-5843?

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

Scan your code now

Source: NVD / NIST