CVE-2024-8856

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.

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CVSS v3.1 Score

9.8

CRITICAL

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

Weakness Type (CWE)

CWE-434 Unrestricted Upload

Affected Products

Vendor	Product	Versions
revmakx	backup_and_staging_by_wp_time_capsule	< 1.22.22

References

Advisories & Patches

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=

Other 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://www.wordfence.com/threat-intel/vulnerabilities/id/fdc2de78-5601-461f-b2f0-c80b592ccb1b?source=cve

Frequently Asked Questions

What is CVE-2024-8856? +

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. It has a CVSS v3.1 base score of 9.8 (CRITICAL).

How severe is CVE-2024-8856? +

CVE-2024-8856 has a CVSS v3.1 score of 9.8 out of 10, rated CRITICAL. This is a critical vulnerability that should be patched immediately.

What products are affected by CVE-2024-8856? +

CVE-2024-8856 affects products from revmakx, specifically: backup_and_staging_by_wp_time_capsule. Check the affected products table above for specific version ranges.

How do I check if I'm vulnerable to CVE-2024-8856? +

You can use Secably's free Website Scanner to check your website for known vulnerabilities. For infrastructure scanning, use the Port Scanner to identify exposed services that may be affected. Check the vendor advisories linked above for specific patch and version information.

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