CVE-2024-8856

CriticalPublished

Backup and Staging by WP Time Capsule <= 1.22.21 - Unauthenticated Arbitrary File Upload

Published: Nov 16, 2024
Updated: Apr 8, 2026
Assigning CNA: Wordfence
Evidence observed: Apr 6, 2025

Primary CVSS

9.8/ 10Critical

nvd · CVSS 3.1

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

EPSS probability estimate

94.1%

High · next 30 days

Percentile: 99.8%
Model date: Oct 17, 2026

EPSS is a statistical estimate, not a certainty or a measure of impact. Combine it with CVSS, KEV status, exposure and your environment.

Summary

The Backup and Staging by WP Time Capsule plugin for WordPress is vulnerable to arbitrary file uploads due to missing file type validation in the the UploadHandler.php file and no direct file access prevention in all versions up to, and including, 1.22.21. This makes it possible for unauthenticated attackers to upload arbitrary files on the affected site's server which may make remote code execution possible.

Sources

Repository evidence: Files: 2 · Repositories: 2

1 Module1 Template

WordPress WP Time Capsule Arbitrary File Upload to RCEModule
modules/exploits/multi/http/wp_time_capsule_file_upload_rce.rb
Metasploit Framework modules
ExploitEvidence observed: Sep 26, 2026Revision: b22ce1fbae63Related tool
Declared conditions
- platform: Linux,PHP,Unix,Windows($.exploit_multi/http/wp_time_capsule_file_upload_rce.platform)
- verification: check_declared($.exploit_multi/http/wp_time_capsule_file_upload_rce.check)
WP Time Capsule Plugin - Remote Code ExecutionTemplate
http/cves/2024/CVE-2024-8856.yaml
Nuclei Templates
DetectionEvidence observed: Sep 26, 2026Revision: 17f5725dc10cRelated tool
Declared conditions
- network: http($.protocol_keys)
- verification: word($.matchers[*].type)

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