CVE-2024-8856: critical vulnerability in revmakx Backup and Staging by WP Time Capsule
Backup and Staging by WP Time Capsule <= 1.22.21 - Unauthenticated Arbitrary File Upload
Published · Updated
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100Vexday Risk Score
Patch now. It exploitation observed by VulnCheck and has a working public exploit.
ssvc Actcvss 9.8epss 94%
from disclosure to weaponsame day
Published on NVDNov 16
1st PoCNov 16
metasploitNov 15
VulnCheck+123d
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.
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Affected products
revmakx · Backup and Staging by WP Time Capsulepublic PoCs found — 5
exploitdbwww.exploit-db.com/exploits/52131unverifiedgithubgithub.com/ubaydev/CVE-2024-8856★ 2githubgithub.com/Jenderal92/CVE-2024-8856★ 2githubgithub.com/Evillm/CVE-2024-8856-PoC★ 0vulncheckvulncheck.com/xdb/1dbf1e96cef7unverified⚠ Public resources, to assess the exposure of systems you control or are authorized to test. Test only with authorization.
Related CVEs — revmakx Backup and Staging by WP Time Capsule
In the same product, most dangerous first.
CVE-2024-49684HIGHWordPress Backup and Staging by WP Time Capsule plugin <= 1.22.21 - PHP Object Injection vulnerabilityEPSS 0.5%CVE-2024-48020HIGHWordPress Backup and Staging by WP Time Capsule plugin <= 1.22.21 - SQL Injection vulnerabilityEPSS 0.5%CVE-2026-8996MEDIUMBackup and Staging by WP Time Capsule <= 1.22.26 - Missing Authorization to Authenticated (Subscriber+) Sensitive Information Exposure via download_recent_decrypted_file_wptc FunctionEPSS 0.5%CVE-2026-42760HIGHWordPress Backup and Staging by WP Time Capsule plugin <= 1.22.25 - Broken Authentication vulnerabilityEPSS 0.3%CVE-2025-47477HIGHWordPress Backup and Staging by WP Time Capsule plugin <= 1.22.23 - Reflected Cross Site Scripting (XSS) vulnerabilityEPSS 0.3%
References
https://hacked.be/posts/CVE-2024-8856https://plugins.trac.wordpress.org/browser/wp-time-capsule/trunk/wp-tcapsule-bridge/upload/php/UploadHandler.phphttps://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