CVE-2026-27400
Deferred Deferred - Pending Action

Unauthenticated Arbitrary File Deletion in BookPro

Publication date: 2026-06-17

Last updated on: 2026-06-17

Assigner: Patchstack

Description
Unauthenticated Arbitrary File Deletion in BookPro <= 1.1.0 versions.

CVSS Scores

EPSS Scores

Probability:
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Meta Information

Published
2026-06-17
Last Modified
2026-06-17
Generated
2026-07-08
AI Q&A
2026-06-17
EPSS Evaluated
2026-07-06
NVD
CVE-2026-27400
EUVD
EUVD-2026-37669

Affected Vendors & Products

Showing 1 associated CPE
Vendor Product Version / Range
ovabookpro bookpro to 1.1.0 (exc)

Helpful Resources

Exploitability

CWE
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KEV
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CWE ID Description
CWE-22 The product uses external input to construct a pathname that is intended to identify a file or directory that is located underneath a restricted parent directory, but the product does not properly neutralize special elements within the pathname that can cause the pathname to resolve to a location that is outside of the restricted directory.

Attack-Flow Graph

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Detection Guidance

There is no specific detection method or commands provided in the available information for identifying exploitation of CVE-2026-27400 on your network or system.

The vulnerability affects the WordPress BookPro Plugin versions 1.1.0 and below, allowing unauthenticated arbitrary file deletion.

Immediate mitigation involves updating the plugin or applying mitigation rules from Patchstack until an official patch is available.

Compliance Impact

The provided information does not specify how the unauthenticated arbitrary file deletion vulnerability in BookPro versions 1.1.0 and below impacts compliance with common standards and regulations such as GDPR or HIPAA.

Executive Summary

The WordPress BookPro Plugin, versions 1.1.0 and below, contains an unauthenticated Arbitrary File Deletion vulnerability. This means that attackers can delete files on a website using this plugin without needing any prior access or authentication.

This vulnerability is classified as high priority with a CVSS score of 8.6, indicating it is highly exploitable and dangerous.

Impact Analysis

Exploitation of this vulnerability allows attackers to delete files from your website, which can cause the site to break or stop functioning properly.

Since the vulnerability is unauthenticated, attackers do not need any credentials or prior access, making it easier to exploit.

This can lead to significant downtime, loss of data, and disruption of services provided by the website.

Mitigation Strategies

The vulnerability affects WordPress BookPro Plugin versions 1.1.0 and below and allows unauthenticated arbitrary file deletion.

As there is no official patch available yet, immediate mitigation involves applying the Patchstack mitigation rule to block attacks targeting this vulnerability.

Other recommended steps include updating the plugin when a patch becomes available, or seeking assistance from your hosting provider or web developer to secure your website.

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