CVE-2026-87115: CWE-22 Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal') in e4jvikwp VikAppointments Services Booking Calendar
The VikAppointments Services Booking Calendar plugin for WordPress is vulnerable to arbitrary file deletion due to insufficient file path validation in the extract function in all versions up to, and including, 1.2.21. This makes it possible for unauthenticated attackers to delete arbitrary files on the server, which can easily lead to remote code execution when the right file is deleted (such as wp-config.php). Exploitation requires at least one File-type custom field to be published on the confirmation page shortcode, as this field is not created by default during plugin installation.
AI Analysis
Technical Summary
CVE-2026-87115 is a path traversal vulnerability (CWE-22) in the extract function of the VikAppointments Services Booking Calendar plugin for WordPress. The vulnerability arises from insufficient validation of file paths, enabling unauthenticated attackers to delete arbitrary files on the server. This affects all versions up to and including 1.2.21. Exploitation requires the presence of at least one File-type custom field on the confirmation page shortcode, which is not created by default during installation. The impact includes potential remote code execution if critical files like wp-config.php are deleted.
Potential Impact
An unauthenticated attacker can delete arbitrary files on the server hosting the vulnerable plugin. This can lead to denial of service and potentially remote code execution if key files such as wp-config.php are deleted. The vulnerability has a high CVSS score of 9.1, indicating critical severity with high impact on integrity and availability.
Mitigation Recommendations
No official patch or fix is currently documented. Users should verify the vendor advisory for updates. Until a fix is available, avoid publishing File-type custom fields on the confirmation page shortcode to reduce exposure. Monitor vendor channels for official remediation guidance.
CVE-2026-87115: CWE-22 Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal') in e4jvikwp VikAppointments Services Booking Calendar
Description
The VikAppointments Services Booking Calendar plugin for WordPress is vulnerable to arbitrary file deletion due to insufficient file path validation in the extract function in all versions up to, and including, 1.2.21. This makes it possible for unauthenticated attackers to delete arbitrary files on the server, which can easily lead to remote code execution when the right file is deleted (such as wp-config.php). Exploitation requires at least one File-type custom field to be published on the confirmation page shortcode, as this field is not created by default during plugin installation.
CVSS v3.1
Score 9.1critical
Affected software
e4jvikwp
VikAppointments Services Booking Calendar
Weaknesses
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
CVE-2026-87115 is a path traversal vulnerability (CWE-22) in the extract function of the VikAppointments Services Booking Calendar plugin for WordPress. The vulnerability arises from insufficient validation of file paths, enabling unauthenticated attackers to delete arbitrary files on the server. This affects all versions up to and including 1.2.21. Exploitation requires the presence of at least one File-type custom field on the confirmation page shortcode, which is not created by default during installation. The impact includes potential remote code execution if critical files like wp-config.php are deleted.
Potential Impact
An unauthenticated attacker can delete arbitrary files on the server hosting the vulnerable plugin. This can lead to denial of service and potentially remote code execution if key files such as wp-config.php are deleted. The vulnerability has a high CVSS score of 9.1, indicating critical severity with high impact on integrity and availability.
Mitigation Recommendations
No official patch or fix is currently documented. Users should verify the vendor advisory for updates. Until a fix is available, avoid publishing File-type custom fields on the confirmation page shortcode to reduce exposure. Monitor vendor channels for official remediation guidance.
Technical Details
- Data Version
- 5.2
- Assigner Short Name
- Wordfence
- Date Reserved
- 2026-09-08T20:45:54.127Z
- Cvss Version
- 3.1
- State
- PUBLISHED
Threat ID: 6ac0abd5a43b0b3b89a7e7cc
Added to database: 10/03/2026, 07:16:37 UTC
Last enriched: 10/03/2026, 07:31:21 UTC
Last updated: 10/03/2026, 19:51:05 UTC
Views: 21
Community Reviews
0 reviewsCrowdsource mitigation strategies, share intel context, and vote on the most helpful responses. Sign in to add your voice and help keep defenders ahead.
Want to contribute mitigation steps or threat intel context? Sign in or create an account to join the community discussion.
Actions
Updates to AI analysis require Pro Console access. Upgrade inside Console → Billing.
Need more coverage?
Upgrade to Pro Console for AI refresh and higher limits.
For incident response and remediation, OffSeq services can help resolve threats faster.
Latest Threats
Check if your credentials are on the dark web
Instant breach scanning across billions of leaked records. Free tier available.