CVE-2024-8856

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

9.8 CriticalPublic exploit

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.

Attack profile

How easy it is to exploit

Attack vector: Network
Complexity: Low
Privileges needed: None
User interaction: None

What an attacker can affect

Confidentiality: High
Integrity: High
Availability: High

Exploit likelihood

94.1%Up 94.1 points since Nov 16, 2024

What each source reports

CVE List Score used 9.8

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

Record: CVE-2024-8856
CVSS 3.1: 9.8 CriticalCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Weakness: CWE-434
Updated: 2026-11-02

EUVDEUVD-2024-49578 9.8

Record: EUVD-2024-49578
CVSS 3.1: 9.8 CriticalCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Updated: 2026-11-02

GitHub AdvisoriesGHSA-wph3-vq9m-q946 9.8

The Backup and Staging by WP Time Capsule plugin for WordPress is vulnerable to arbitrary file...

Record: GHSA-wph3-vq9m-q946
CVSS 3.1: 9.8 CriticalCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Weakness: CWE-434
Updated: 2026-11-02

NVD 9.8

Record: CVE-2024-8856
CVSS 3.1: 9.8 CriticalCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Weakness: CWE-434
Updated: 2026-11-02

Affected products

revmakx backup and staging by wp time capsule

Public exploits

Links only. Every CVE stores no exploit code.

Public exploits
Source	Link	Date
Exploit-DB	Backup and Staging by WP Time Capsule 1.22.21 - Unauthenticated Arbitrary File Upload	2025-04-06
Metasploit	WordPress WP Time Capsule Arbitrary File Upload to RCE	2024-11-15
Nuclei	WP Time Capsule Plugin - Remote Code Execution
PoC in GitHub	Evillm/CVE-2024-8856-PoC	2026-02-04
PoC in GitHub	Jenderal92/CVE-2024-8856	2024-11-21
PoC in GitHub	ubaydev/CVE-2024-8856	2024-11-16

History

History
Recorded	Changed	Sources
Nov 2, 2026	first indexed	CVE List, EUVD, Exploit-DB, GitHub Advisories, Metasploit, Nuclei, NVD, PoC in GitHub

Dates are when Every CVE recorded each change. Upstream dates may differ.

In short

CVE-2024-8856 is a critical vulnerability (CVSS 9.8) in Revmakx Backup And Staging By Wp Time Capsule, published November 16, 2024. Public exploit code exists. EPSS puts the chance of exploitation in the next 30 days at 94.1%, the 99th percentile. No source names a fixed version.