CVE-2021-24730

Logo Showcase with Slick Slider – Logo Carousel, Logo Slider & Logo Grid <= 1.2.4 - Cross-Site Request Forgery

2021-10-24 00:00
apple502j

Strategic Overview

Status
Patched in 1.2.5
Affected Version
< 1.2.5
CVSS
4.3Medium
Weakness type
CWE-352 · Cross-Site Request Forgery (CSRF)
CVE
CVE-2021-24730
View all Logo Showcase – Responsive Logo Carousel, Logo Slider & Logo Grid vulnerabilities

At a glance

CVE-2021-24730 is a medium-severity Cross-Site Request Forgery (CSRF) vulnerability in the Logo Showcase WordPress plugin, affecting versions < 1.2.5. It carries a CVSS score of 4.3 (reachable over the network; low attack complexity). The issue is fixed in version 1.2.5; sites on affected versions should update now. Disclosed October 2021, reported by apple502j.

Vulnerability Overview

The Logo Showcase with Slick Slider WordPress plugin before 1.2.5 does not have CSRF and authorisation checks in the lswss_save_attachment_data AJAX action, allowing any authenticated users, such as Subscriber, to change title, description, alt text, and URL of arbitrary uploaded media.

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-352: Cross-Site Request Forgery (CSRF)

Reaching this weakness in Logo Showcase < 1.2.5 takes a caller who can reach the endpoint. Cross-site request forgery abuses the fact that browsers attach a victim's cookies to any request, so a state-changing action that only checks who you are, not whether you meant to act, can be triggered from another site.

An attacker who gets a logged-in user to load a crafted page can perform that action as them, with the impact scaling to whatever the victim's role is allowed to do. For Logo Showcase the fix is 1.2.5: builds < 1.2.5 are affected, anything from 1.2.5 onward is not.

Remediation

Update to version 1.2.5, or a newer patched version

How does WordSec protect against this?

The attempt arrives as an ordinary request to Logo Showcase: WordSec's web application firewall inspects request payloads before WordPress loads them. None of that substitutes for the fix: Logo Showcase 1.2.5 closes this, and updating the plugin is the step that ends it.

  • Firewall
  • Alerts

External References

Related records

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