CVE-2023-45631

Responsive Image Gallery, Gallery Album <= 2.0.3 - Missing Authorization via Multiple AJAX Actions

2023-10-11 00:00
thiennv

Strategic Overview

Status
Unpatched
Affected Plugin
Gallery – Image and Video Gallery with Thumbnails
Affected Version
<= 2.0.3
CVSS
5.4Medium
Weakness type
CWE-862 · Missing Authorization
CVE
CVE-2023-45631
View all Gallery – Image and Video Gallery with Thumbnails vulnerabilities

At a glance

CVE-2023-45631 is a medium-severity Missing Authorization vulnerability in the Gallery WordPress plugin, affecting versions <= 2.0.3. It carries a CVSS score of 5.4 (reachable over the network; low attack complexity). The root cause is a missing authorization check on a reachable function. No fixed release has been reported yet; treat installations running this software as exposed. Disclosed October 2023, reported by thiennv.

Vulnerability Overview

The Responsive Image Gallery, Gallery Album plugin for WordPress is vulnerable to unauthorized modification of data and loss of data due to missing capability checks on multiple AJAX functions in versions up to, and including, 2.0.3. This makes it possible for authenticated attackers, with subscriber-level access and above, to e.g. create galleries, delete galleries, rename albums, delete albums, and more. CVE-2024-37542 may be a duplicate of this.

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 Gallery <= 2.0.3 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. No fixed build of this plugin is recorded for Gallery yet, so installs running <= 2.0.3 stay exposed until the vendor ships one.

Remediation

No known patch available. Please review the vulnerability's details in depth and employ mitigations based on your organization's risk tolerance. It may be best to uninstall the affected software and find a replacement.

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. No patched version is recorded yet, which is the case where a filtering layer matters most, because there is nothing to update to.

  • Login Security
  • Alerts

External References

https://www.cve.org/CVERecord?id=CVE-2023-45631https://www.wordfence.com/threat-intel/vulnerabilities/id/cb08cf02-4766-4093-9306-3b4581f54f77https://nvd.nist.gov/vuln/detail/CVE-2023-45631

Related records

Vulnerability data © Defiant, Inc., provided under the Wordfence Intelligence T&C