CVE-2020-36705

Name: CVE-2020-36705
Creator: NVD / NIST
Published: 2023-06-07T13:15:09.167+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

CRITICALCVSS 9.8/10EPSS 6.94%

Last modified Jun 17, 2026

CVE-2020-36705 is a critical-severity vulnerability rated 9.8/10 on the CVSS scale. The Adning Advertising plugin for WordPress is vulnerable to arbitrary file uploads due to missing file type validation in the _ning_upload_image function in versions up to, and including, 1.5.5. This makes it possible for unauthenticated attackers to upload arbitrary files on the affected sites server which may make remote code execution possible.. EPSS estimates a 6.94% chance of exploitation in the next 30 days.

Description

The Adning Advertising plugin for WordPress is vulnerable to arbitrary file uploads due to missing file type validation in the _ning_upload_image function in versions up to, and including, 1.5.5. This makes it possible for unauthenticated attackers to upload arbitrary files on the affected sites server which may make remote code execution possible.

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

6.94%

93.3th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

CWE-434

Affected Software

Vendor	Product	Versions
Tunasite	Adning Advertising	< 1.5.6

References

https://blog.nintechnet.com/critical-vulnerability-in-adning-advertising-plugin-actively-exploited-in-the-wild/Third Party Advisory
https://codecanyon.net/item/wp-pro-advertising-system-all-in-one-ad-manager/269693Product
https://wpscan.com/vulnerability/e9873fe3-fc06-4a52-aa32-6922cab7830cThird Party Advisory
https://www.wordfence.com/blog/2020/07/critical-vulnerabilities-patched-in-adning-advertising-plugin/Exploit, Third Party Advisory
https://www.wordfence.com/threat-intel/vulnerabilities/id/4a263b74-e9ae-4fd2-be9b-9b8e9eee5982?source=cveThird Party Advisory
https://blog.nintechnet.com/critical-vulnerability-in-adning-advertising-plugin-actively-exploited-in-the-wild/Third Party Advisory
https://codecanyon.net/item/wp-pro-advertising-system-all-in-one-ad-manager/269693Product
https://wpscan.com/vulnerability/e9873fe3-fc06-4a52-aa32-6922cab7830cThird Party Advisory
https://www.wordfence.com/blog/2020/07/critical-vulnerabilities-patched-in-adning-advertising-plugin/Exploit, Third Party Advisory
https://www.wordfence.com/threat-intel/vulnerabilities/id/4a263b74-e9ae-4fd2-be9b-9b8e9eee5982?source=cveThird Party Advisory

Timeline

Published: Jun 7, 2023
Last Modified: Jun 17, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2020-36705?

How severe is CVE-2020-36705?

CVE-2020-36705 has a CVSS score of 9.8/10 (CRITICAL severity). The EPSS model estimates a 6.94% probability of exploitation in the next 30 days.

How do I fix CVE-2020-36705?

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-2020-36705?

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

Scan your code now

Source: NVD / NIST