CVE-2025-53347

Kalium <= 3.18.3 - Cross-Site Request Forgery

2025-08-14 00:00
Ananda Dhakal

Strategic Overview

Status
Patched in 3.19
Affected Version
<= 3.18.3
CVSS
4.3Medium
Weakness type
CWE-352 · Cross-Site Request Forgery (CSRF)
CVE
CVE-2025-53347
View all Kalium 3 | Creative WordPress & WooCommerce Theme vulnerabilities

At a glance

CVE-2025-53347 is a medium-severity Cross-Site Request Forgery (CSRF) vulnerability in the Kalium 3 WordPress theme, affecting versions <= 3.18.3. It carries a CVSS score of 4.3 (reachable over the network; low attack complexity). Exploitation requires no authentication. The issue is fixed in version 3.19; sites on affected versions should update now. Disclosed August 2025, reported by Ananda Dhakal.

Vulnerability Overview

The Kalium 3 | Creative WordPress & WooCommerce Theme theme for WordPress is vulnerable to Cross-Site Request Forgery in all versions up to, and including, 3.18.3. This is due to missing or incorrect nonce validation on a function. This makes it possible for unauthenticated attackers to perform an unauthorized action granted they can trick a site administrator into performing an action such as clicking on a link.

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.

CWE-352: Cross-Site Request Forgery (CSRF)

Reaching this weakness in Kalium 3 <= 3.18.3 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 Kalium 3 the fix is 3.19: builds <= 3.18.3 are affected, anything from 3.19 onward is not.

Remediation

Update to version 3.19, or a newer patched version

How does WordSec protect against this?

The attempt arrives as an ordinary request to Kalium 3: WordSec's web application firewall inspects request payloads before WordPress loads them. None of that substitutes for the fix: Kalium 3 3.19 closes this, and updating the theme is the step that ends it.

  • Firewall
  • Alerts

External References

Related records

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