CVE-2026-24371

BA Book Everything <= 1.8.16 - Missing Authorization

2026-01-08 00:00

Strategic Overview

Status: Patched in 1.8.17
Affected Plugin: BA Book Everything
Affected Version: <= 1.8.16
CVSS: 4.3Medium
Weakness type: CWE-862 · Missing Authorization
CVE: CVE-2026-24371

View all BA Book Everything vulnerabilities

At a glance

CVE-2026-24371 is a medium-severity Missing Authorization vulnerability in the BA Book Everything WordPress plugin, affecting versions <= 1.8.16. It carries a CVSS score of 4.3 (reachable over the network; low attack complexity). The root cause is a missing authorization check on a reachable function. The issue is fixed in version 1.8.17; sites on affected versions should update now. Disclosed January 2026, reported by Legion Hunter.

Vulnerability Overview

The BA Book Everything plugin for WordPress is vulnerable to unauthorized access due to a missing capability check on a function in all versions up to, and including, 1.8.16. This makes it possible for authenticated attackers, with Subscriber-level access and above, to perform an unauthorized action.

Technical Analysis

The vector marks this flaw as remotely reachable over the network, with low attack complexity — no special timing or configuration is needed, and no interaction from a victim user.

CWE-862: Missing Authorization

Reaching this weakness in BA Book Everything <= 1.8.16 takes a caller who can reach the endpoint. A missing authorization check means a function is reachable by anyone who can reach the endpoint, because the code never asks whether the caller is allowed to perform the action.

Any user who can reach the endpoint gets to run an action reserved for higher-privileged roles, from reading protected data to changing settings or content. For BA Book Everything the fix is 1.8.17: builds <= 1.8.16 are affected, anything from 1.8.17 onward is not.

Remediation

Update to version 1.8.17, or a newer patched version

How does WordSec protect against this?

Because it turns on account access, WordSec's login security is the relevant layer: role-based two-factor, captcha and brute-force limits raise the cost of getting the account this needs. None of that substitutes for the fix: BA Book Everything 1.8.17 closes this, and updating the plugin is the step that ends it.

Login Security
Alerts

External References

https://www.cve.org/CVERecord?id=CVE-2026-24371 https://www.wordfence.com/threat-intel/vulnerabilities/id/805b070e-0575-42d8-8e16-b2467afe8ebc https://nvd.nist.gov/vuln/detail/CVE-2026-24371

Related records

Other vulnerabilities in BA Book Everything

CVSS Vector

4.3

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

Base

Attack VectorNetwork
Attack ComplexityLow
Privileges RequiredLow
User InteractionNone
ScopeUnchanged
ConfidentialityNone
IntegrityLow
AvailabilityNone

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