CVE-2023-28154

webpack JS package <= 5.75.0 - Sandbox Bypass

2023-04-11 00:00

Strategic Overview

Status: Patched in 7.4.0
Affected Plugin: Restricted Site Access
Affected Version: <= 7.3.5
CVSS: 8.3High
Weakness type: CWE-269 · Improper Privilege Management
CVE: CVE-2023-28154

View all Restricted Site Access vulnerabilities

At a glance

CVE-2023-28154 is a high-severity Improper Privilege Management vulnerability in the Restricted Site Access WordPress plugin, affecting versions <= 7.3.5. It carries a CVSS score of 8.3 (reachable over the network; low attack complexity). Exploitation requires no authentication. The issue is fixed in version 7.4.0; sites on affected versions should update now. Disclosed April 2023.

Vulnerability Overview

The JS package webpack is vulnerable to Sandbox Bypass in versions up to, and including, 5.75.0 due to mishandling magic comments. Some WordPress plugins and themes use this dependency, however, are not vulnerable to exploitation.

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-269: Improper Privilege Management

Reaching this weakness in Restricted Site Access <= 7.3.5 takes a caller who can reach the endpoint. Improper privilege management means the code lets an account end up with capabilities its role should not have.

It converts a low-privileged account into an administrative one, which makes every other restriction on the site irrelevant. For Restricted Site Access the fix is 7.4.0: builds <= 7.3.5 are affected, anything from 7.4.0 onward is not.

Remediation

Update to version 7.4.0, 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: Restricted Site Access 7.4.0 closes this, and updating the plugin is the step that ends it.

Login Security
Alerts

External References

https://www.cve.org/CVERecord?id=CVE-2023-28154 https://www.wordfence.com/threat-intel/vulnerabilities/id/1cda31a4-4c79-4567-a527-6510c31d2843 https://nvd.nist.gov/vuln/detail/CVE-2023-28154

Related records

Other vulnerabilities in Restricted Site Access

CVSS Vector

8.3

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

Base

Attack VectorNetwork
Attack ComplexityLow
Privileges RequiredNone
User InteractionNone
ScopeChanged
ConfidentialityLow
IntegrityLow
AvailabilityLow

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