CVE-2020-36842Known exploitationNetwork attack vector

Authenticated arbitrary file upload via unchecked AJAX actions

Published Oct 16, 2024 · Updated Apr 8, 2026

Arbitrary file upload in WPvivid Backup & Migration 0.9.35 and earlier allows remote authenticated users to upload extractable ZIP archives. The wpvivid_upload_import_files and wpvivid_upload_files AJAX actions accept archive uploads without a capability check, and the plugin can subsequently extract them. Subscriber-level access is sufficient, allowing attacker-controlled files to be written into the WordPress environment.

CVSS severity8.8
High
EPSS probability1.16%
Next 30 days · Sep 16, 2026
Known exploitationReported
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Arbitrary file upload in WPvivid Backup & Migration 0.9.35 and earlier allows remote authenticated users to upload extractable ZIP archives. The wpvivid_upload_import_files and wpvivid_upload_files AJAX actions accept archive uploads without a capability check, and the plugin can subsequently extract them. Subscriber-level access is sufficient, allowing attacker-controlled files to be written into the WordPress environment.

The record

CVE
CVE-2020-36842
Published
Oct 16, 2024
Updated
Apr 8, 2026
Vendor
WPvivid Plugins
Product
WPvivid — Backup, Migration & Staging
Classifications
CWE-434, T1190
Attack vector
network
Privileges
authenticated

Timeline

How it unfolded

  1. Oct 16, 2024CVE publishedPublication date reported by the CVE source.
  2. Apr 8, 2026Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

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Is a vulnerable build present?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion=0 <=0.9.35

What conditions does exploitation require?

Attack vectornetwork
Required privilegesauthenticated

What is affected?

WPvivid Plugins · WPvivid — Backup, Migration & Stagingversion=0 <=0.9.35
WPvivid Plugins · WPvivid Backup & Migrationversion=0 <=0.9.35

Published CVSS scores

8.8WordfenceCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

Daily unique IPsNo honeypot observations are available for this CVE in the selected window.

No observations available

Sep 10, 2026Sep 16, 2026
Latest reporting daySep 16, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesauthenticated
Known exploitationReported
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-434Unrestricted Upload of File with Dangerous Type
T1190Exploit Public-Facing Application

Public exploit references

No public exploit references are available in this record.

Labels summarize the accepted research assessment. They do not indicate a test against your environment.

Reported exploitation

Technologies

Your stack

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Your stack

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