PatchTheCVECVE-2024-8856: The Backup and Staging by WP Time Capsule plugin for WordPress is vulnerable to arbitrary file uploads due to
CVE-2024-8856 is a critical-severity flaw (CVSS 9.8) affecting backup and staging by wp time capsule. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.
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.
Why this priority
- Critical severity
- EPSS top 1%: very likely to be exploited
- Public exploit reference
- CISA SSVC: automatable with total technical impact
- Remotely exploitable, no login, no user action
A fixed release or distro patch exists.
Risk facts
| CVSS score | 9.8 (Critical) |
| Attack vector | Network (remote) |
| Attack complexity | Low |
| Privileges needed | None |
| User interaction | None |
| EPSS exploit chance | 94.1% (top 1%) |
| CISA exploited list | No |
| Weakness | CWE-434 |
| Published | 2024-11-16 |
| Last modified | 2026-06-17 |
Last updated 2026-06-17 · Sources: CVE Program, NVD, CISA KEV, EPSS and vendor advisories · How we score
Am I affected?
Timeline
- Published CVE record published
- Updated Record last modified
Exact fixes by distribution
Public exploits and detection
Public code exists for this CVE. Treat unpatched systems as at risk, and only run PoCs in a lab.
- GitHub PoC: ubaydev/CVE-2024-8856 (2 stars)
- GitHub PoC: Jenderal92/CVE-2024-8856 (2 stars)
- GitHub PoC: Evillm/CVE-2024-8856-PoC (0 stars)
- Write-up: hacked.be/posts/CVE-2024-8856
- GitHub PoC: ubaii/CVE-2024-8856
- Exploit-DB: Backup and Staging by WP Time Capsule 1.22.21 - Unauthenticated Arbitrary File Upload
- Metasploit: WordPress WP Time Capsule Arbitrary File Upload to RCE
- Nuclei scan template: WP Time Capsule Plugin - Remote Code Execution
Scores and fixes here are computed automatically from those and other public sources. Confirm with the vendor advisory before changing production systems.
Quick answers
How do I fix CVE-2024-8856?
backup and staging by wp time capsule: upgrade to 1.22.22. Exact commands for each OS are on this page.
Is CVE-2024-8856 being exploited?
CVE-2024-8856 is not on the CISA Known Exploited Vulnerabilities list at the time of the last update. Check again, as this can change.
What does CVE-2024-8856 affect?
CVE-2024-8856 affects backup and staging by wp time capsule. Severity is critical (CVSS 9.8). 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 inc
How urgent is CVE-2024-8856?
Priority 72/100. Critical severity; EPSS top 1%: very likely to be exploited; Public exploit reference; CISA SSVC: automatable with total technical impact; Remotely exploitable, no login, no user action
Software pages
WordPress vulnerabilities · PHP vulnerabilities