CVE-2023-4637

WPvivid <= 0.9.94 - Missing Authorization

2024-01-19 00:00

Strategic Overview

Status: Patched in 0.9.95
Affected Plugin: WPvivid — Backup, Migration & Staging
Affected Version: <= 0.9.94
CVSS: 4.3Medium
Weakness type: CWE-862 · Missing Authorization
CVE: CVE-2023-4637

View all WPvivid — Backup, Migration & Staging vulnerabilities

At a glance

CVE-2023-4637 is a medium-severity Missing Authorization vulnerability in the WPvivid WordPress plugin, affecting versions <= 0.9.94. 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 0.9.95; sites on affected versions should update now. Disclosed January 2024, reported by Revan Arifio.

Vulnerability Overview

The WPvivid plugin for WordPress is vulnerable to unauthorized access of data due to a missing capability check on the restore() and get_restore_progress() function in versions up to, and including, 0.9.94. This makes it possible for unauthenticated attackers to invoke these functions and obtain full file paths if they have access to a back-up ID.

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

WPvivid <= 0.9.94 carries this weakness at restore(), and reaching it 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 WPvivid the fix is 0.9.95: builds <= 0.9.94 are affected, anything from 0.9.95 onward is not.

Remediation

Update to version 0.9.95, 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: WPvivid 0.9.95 closes this, and updating the plugin is the step that ends it.

Login Security
Alerts

External References

https://www.cve.org/CVERecord?id=CVE-2023-4637 https://www.wordfence.com/threat-intel/vulnerabilities/id/bad0bd6b-9c88-4d31-90b5-92d3ceb8c0af https://nvd.nist.gov/vuln/detail/CVE-2023-4637

Related records

Same weakness class

Other vulnerabilities in WPvivid — Backup, Migration & Staging

CVSS Vector

4.3

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

Base

Attack VectorNetwork
Attack ComplexityLow
Privileges RequiredLow
User InteractionNone
ScopeUnchanged
ConfidentialityLow
IntegrityNone
AvailabilityNone

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