WordPress security changelog
MEDIUM CVE-2024-9891 Deferred

Multiline files upload for contact form 7: A security weakness

Multiline files upload for contact form 7 is affected by a security weakness. Exploitation requires at least subscriber-level access. The resulting impact depends on how the affected component exposes the vulnerable operation.

CVE / CNA score 4.3 CVSS 3.1 · security@wordfence.com
NVD score Pending NVD has not published its own CVSS assessment.
Component
Multiline files upload for contact form 7
Plugin slug
multiline-files-upload-for-contact-form-7
Affected
See vendor advisory
Safe version
See mitigation notes
Published
Oct 16, 2024
Weakness
CWE-862 — Missing Authorization

This CVE was published Oct 16, 2024 and is one of 1 known issue for this plugin.

Update, patch or deactivate.

Update Multiline files upload for contact form 7 to a release outside the affected range, or disable and remove it until a fixed version is available.

No confirmed safe version is listed. Consider a vendor-supported patch or temporarily restricting the affected functionality while you assess the risk.

Deactivate only when warranted by your risk profile, or when advised by your hosting provider in the limited circumstances where the vulnerability cannot otherwise be mitigated. If you’re unsure which action is appropriate, contact Fused or your hosting provider for guidance.

Technical description

The Multiline files upload for contact form 7 plugin for WordPress is vulnerable to unauthorized plugin deactivation due to a missing capability check on the mfcf7_zl_custom_handle_deactivation_plugin_form_submission() function in all versions up to, and including, 2.8.1. This makes it possible for authenticated attackers, with Subscriber-level access and above, to deactivate the plugin and send a custom reason from the site.

CVE / CNA vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:N

Primary and upstream sources