CVE-2024-8856 EXPLOIT
9.8
CRITICAL · CVSS 3.1 · EPSS 94% (pctl 100)
Patch early
A public exploit exists.
Description
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.
Scoring
| CVSS | 9.8 (CRITICAL, v3.1) |
|---|---|
| Vector | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H |
| EPSS | 94% — more likely to be exploited than 100% of all CVEs |
| Weakness | CWE-434 |
| On CISA KEV | no |
| Public exploit | yes |
| Published | 2024-11-16 |
| Last modified | 2026-06-17 |
Affected (1)
| Vendor | Product |
|---|---|
| revmakx | backup and staging by wp time capsule |
Public exploits
| Source | Title | Date |
|---|---|---|
| exploit-db | Backup and Staging by WP Time Capsule 1.22.21 - Unauthenticated Arbitrary File Upload | 2025-04-06 |
References
- https://hacked.be/posts/CVE-2024-8856
- https://plugins.trac.wordpress.org/browser/wp-time-capsule/trunk/wp-tcapsule-bridge/upload/php/UploadHandler.php
- https://plugins.trac.wordpress.org/changeset/3188325/
- https://plugins.trac.wordpress.org/changeset?sfp_email=&sfph_mail=&reponame=&old=3153289%40wp-time-capsule&new=3153289%40wp-time-capsule&sfp_email=&sfph_mail=
- https://www.wordfence.com/threat-intel/vulnerabilities/id/fdc2de78-5601-461f-b2f0-c80b592ccb1b?source=cve
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