CVE-2025-31909

Apptivo Business Site CRM <= 5.3 - Missing Authorization to Arbitrary Content Deletion

2025-04-02 00:00

Strategic Overview

Status: Patched in 5.4
Affected Plugin: Apptivo Business Site
Affected Version: <= 5.3
CVSS: 5.3Medium
Weakness type: CWE-862 · Missing Authorization
CVE: CVE-2025-31909

View all Apptivo Business Site vulnerabilities

At a glance

CVE-2025-31909 is a medium-severity Missing Authorization vulnerability in the Apptivo Business Site WordPress plugin, affecting versions <= 5.3. It carries a CVSS score of 5.3 (reachable over the network; low attack complexity). Exploitation requires no authentication. The issue is fixed in version 5.4; sites on affected versions should update now. Disclosed April 2025, reported by Kévin Mosbahi (Mika).

Vulnerability Overview

The Apptivo Business Site CRM plugin for WordPress is vulnerable to unauthorized access due to a missing capability check on a function in all versions up to, and including, 5.3. This makes it possible for unauthenticated attackers to delete arbitrary content.

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 privileges on the target site, and no interaction from a victim user.

CWE-862: Missing Authorization

Reaching this weakness in Apptivo Business Site <= 5.3 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 Apptivo Business Site the fix is 5.4: builds <= 5.3 are affected, anything from 5.4 onward is not.

Remediation

Update to version 5.4, 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: Apptivo Business Site 5.4 closes this, and updating the plugin is the step that ends it.

Login Security
Alerts

External References

https://www.cve.org/CVERecord?id=CVE-2025-31909 https://www.wordfence.com/threat-intel/vulnerabilities/id/f265955d-a209-4193-9fb8-962b1b562249 https://nvd.nist.gov/vuln/detail/CVE-2025-31909

Related records

Other vulnerabilities in Apptivo Business Site

CVSS Vector

5.3

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

Base

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

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