CVE-2024-33564

XStore <= 9.3.8 - Authenticated (Subscriber+) Arbitrary Options Update

2024-04-25 00:00

Strategic Overview

Status: Patched in 9.3.9
Affected Theme: XStore
Affected Version: <= 9.3.8
CVSS: 8.8High
Weakness type: CWE-862 · Missing Authorization
CVE: CVE-2024-33564

At a glance

CVE-2024-33564 is a high-severity Missing Authorization vulnerability in the XStore WordPress theme, affecting versions <= 9.3.8. It carries a CVSS score of 8.8 (reachable over the network; low attack complexity; high confidentiality, integrity, availability impact). Exploitation requires an authenticated account at Subscriber level or above. The issue is fixed in version 9.3.9; sites on affected versions should update now. Disclosed April 2024, reported by Rafie Muhammad.

Vulnerability Overview

The XStore theme for WordPress is vulnerable to unauthorized modification of data due to a missing capability check on a function in all versions up to, and including, 9.3.8. This makes it possible for authenticated attackers, with subscriber-level access and above, to update arbitrary options which can be used to achieve privilege escalation.

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. A successful exploit has high impact on confidentiality, integrity, availability — full site compromise territory.

CWE-862: Missing Authorization

Reaching this weakness in XStore <= 9.3.8 takes an account at Subscriber level or above. 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 XStore the fix is 9.3.9: builds <= 9.3.8 are affected, anything from 9.3.9 onward is not.

Remediation

Update to version 9.3.9, 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: XStore 9.3.9 closes this, and updating the theme is the step that ends it.

Login Security
Alerts

External References

https://www.cve.org/CVERecord?id=CVE-2024-33564 https://www.wordfence.com/threat-intel/vulnerabilities/id/19fe28c0-c0ef-49aa-91c1-2e273201babd https://nvd.nist.gov/vuln/detail/CVE-2024-33564

Related records

Same weakness class

Other vulnerabilities in XStore

CVSS Vector

8.8

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

Base

Attack VectorNetwork
Attack ComplexityLow
Privileges RequiredLow
User InteractionNone
ScopeUnchanged
ConfidentialityHigh
IntegrityHigh
AvailabilityHigh

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