CVE-2020-36705
CriticalExploitedAdning Advertising <= 1.5.5 - Arbitrary File Upload
Published Jul 6, 2020 · Updated Apr 8, 2026 · Also known as 4a263b74-e9ae-4fd2-be9b-9b8e9eee5982
Key Facts
Patch immediately- CVE-2020-36705 is a critical-severity vulnerability (CVSS 9.8 v3.1) affecting Adning Advertising (Tunasite), angwp (wordpress-plugin).
- It is exploited in the wild, listed in Industry KEV feed since Jul 7, 2020. No public exploit code is known.
- EPSS estimates a 6.9% probability of exploitation in the next 30 days.
- Fixed versions are available, including angwp 1.5.6, Adning Advertising 1.5.6.
- Brandefense priority: patch immediately, because it is listed as exploited in the wild.
CVSS v3.1
9.8
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
EPSS (30-day exploit likelihood)
6.9%
Higher than 93.9% of all scored CVEs
Exploited in the wild
Yes
1 catalog listing
Public exploit code
None known
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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.
Known-Exploited Catalog Listings
| Catalog | Added | Remediation due | Ransomware use |
|---|---|---|---|
| Industry KEV feed | Jul 7, 2020 | n/a | Not reported |
Required action: Apply remediations or mitigations per vendor instructions or discontinue use of the product if remediation or mitigations are unavailable.
Affected Products
3 affected entries in total| Product | Affected versions | Fixed in |
|---|---|---|
| Adning AdvertisingTunasite | See advisory | 1.5.6 |
| angwpwordpress-plugin | See advisory | 1.5.6 |
Patched Releases
angwp
1.5.6
Adning Advertising
1.5.6
Timeline
Publicly disclosed
Jul 6, 2020
Added to Industry KEV feed
Jul 7, 2020
Last updated
Apr 8, 2026
Weakness Type
- CWE-434 Unrestricted Upload of File with Dangerous Type
References
- advisoryhttps://blog.nintechnet.com/critical-vulnerability-in-adning-advertising-plugin-actively-exploited-in-the-wild/
- advisoryhttps://wpscan.com/vulnerability/e9873fe3-fc06-4a52-aa32-6922cab7830c
- advisoryhttps://www.wordfence.com/threat-intel/vulnerabilities/id/4a263b74-e9ae-4fd2-be9b-9b8e9eee5982?source=api-prod
- advisoryhttps://www.wordfence.com/threat-intel/vulnerabilities/id/4a263b74-e9ae-4fd2-be9b-9b8e9eee5982?source=api-scan
- advisoryhttps://www.wordfence.com/threat-intel/vulnerabilities/id/4a263b74-e9ae-4fd2-be9b-9b8e9eee5982?source=cve
FAQ
Common Questions.
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.
Affected: Adning Advertising (Tunasite); angwp (wordpress-plugin). The full list is in the CVE brief.
It is exploited in the wild, listed in Industry KEV feed since Jul 7, 2020.
No, it is not currently listed in the CISA Known Exploited Vulnerabilities catalog.
No public exploit code is known.
Fixed versions are available, including angwp 1.5.6, Adning Advertising 1.5.6.
Brandefense priority: patch immediately, because it is listed as exploited in the wild.
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