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CVE-2024-8538 - Big File Uploads Plugin

CVE-2024-8538

The Big File Uploads – Increase Maximum File Upload Size plugin for WordPress is vulnerable to Full Path Disclosure in all versions up to, and including, 2.1.2. This is due the plugin not sanitizing a file path in an error message. This makes it possible for authenticated attackers, with author-level access and above, to retrieve the full path of the web application, which can be used to aid other attacks. The information displayed is not useful on its own, and requires another vulnerability to be present for damage to an affected website.

CVE-2024-8538

MEDIUM CVSS 4.3 Published 2024-09-07 Updated 2024-09-26
AI Risk Elevated (66/100) Active Exploit: Likely Published Exploit: Public exploit references found Priority: P3 Priority
Severity Band MEDIUM
CVSS Vector CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N
Affected Components 3
Reference Links 3
AI Risk Engine Elevated (66/100)
Exploitability High
Active Exploitation Likely
Published Exploit Status Public exploit references found

Threat Timeline

  1. 2024-09-07 CVE published and first recorded in the threat feed.
  2. 2024-09-26 Record updated with latest vulnerability metadata.
  3. 2026-04-09 AI technical context refreshed for mitigation and impact guidance.
  4. Now Monitoring for follow-up changes, linked references, and new related CVEs.

AI Context

Machine-generated threat intelligence

AI Updated 18 days ago

AI enriched 18 days ago (2026-04-09 10:04 UTC)

Technical Summary

The Big File Uploads – Increase Maximum File Upload Size plugin for WordPress is vulnerable to Full Path Disclosure in all versions up to, and including, 2.1.2. This is due the plugin not sanitizing a file path in an error message. This makes it possible for authenticated attackers, with author-level access and above, to retrieve the full path of the web application, which can be used to aid other attacks. The information displayed is not useful on its own, and…

Potential Impact

Severity is MEDIUM (CVSS 4.3). Depending on deployment context, affected components may be exposed to unauthorized actions or data integrity risk.

Exploitability Assessment

Exploitability is assessed as High based on published exploit references, remote code execution potential.

Primary risk drivers: published exploit references, remote code execution potential

Mitigation Recommendations

Validate affected product versions, prioritize patching, and monitor references for vendor remediation guidance. If immediate patching is not possible, apply compensating controls and limit exposure of vulnerable surfaces.

Detection & Monitoring

Track authentication anomalies, unexpected file writes, and suspicious plugin API activity around affected components.

Business Impact Lens

Prioritize remediation where affected components process customer data, admin sessions, or Internet-exposed workflows.

Affected Products

Big File Uploads PLUGIN · big-file-uploads Affected: < 2.1.3 Fixed in: 2.1.3
Changeset PLUGIN · changeset Affected range not specified Fixed version not specified
Increase Maximum File Upload Size PLUGIN · increase-maximum-file-upload-size Affected range not specified Fixed version not specified
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