Modula <= 2.7.4 - Incomplete Authorization via 'save_image' and 'save_images'

2023-09-10 00:00
Anonymous

Strategic Overview

Status
Patched in 2.7.5
Affected Plugin
Modula Image Gallery – Photo Grid & Video Gallery
Affected Version
< 2.7.5
CVSS
2.2Low
Weakness type
CWE-285 · Improper Authorization
CVE
CVE pending
View all Modula Image Gallery – Photo Grid & Video Gallery vulnerabilities

At a glance

This record tracks a low-severity Improper Authorization vulnerability in the Modula Image Gallery WordPress plugin, affecting versions < 2.7.5. It carries a CVSS score of 2.2 (reachable over the network). The issue is fixed in version 2.7.5; sites on affected versions should update now. Disclosed September 2023.

Vulnerability Overview

The Modula plugin for WordPress is vulnerable to unauthorized modification of data due to an incomplete capability check on the 'save_image' and 'save_images' functions in versions up to, and including, 2.7.4. This makes it possible for authenticated attackers with the 'edit_others_posts' but not the 'edit_posts' capability to save images. Note that this would only be considered a vulnerability on extremely unusual configurations.

Technical Analysis

The vector marks this flaw as remotely reachable over the network, and no interaction from a victim user.

CWE-285: Improper Authorization

Modula Image Gallery < 2.7.5 carries this weakness at save_image, and reaching it takes a caller who can reach the endpoint. Improper authorization means a permission check exists but does not cover the case being exercised, so a caller who is allowed to do one thing is allowed to do a neighbouring thing as well.

A lower-privileged account performs an action reserved for a higher one, which on a multi-author or membership site means an ordinary user reaching administrative behaviour. For Modula Image Gallery the fix is 2.7.5: builds < 2.7.5 are affected, anything from 2.7.5 onward is not.

Remediation

Update to version 2.7.5, 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: Modula Image Gallery 2.7.5 closes this, and updating the plugin is the step that ends it.

  • Login Security
  • Alerts

External References

https://www.wordfence.com/threat-intel/vulnerabilities/id/f029bd86-d979-45d1-97fe-75c43fb71148

Related records

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