CVE-2025-26963

ClickWhale <= 2.4.3 - Cross-Site Request Forgery

2025-02-13 00:00

Strategic Overview

Status: Patched in 2.4.4
Affected Plugin: ClickWhale – Link Manager, Link Shortener and Click Tracker for Affiliate Links & Link Pages
Affected Version: <= 2.4.3
CVSS: 4.3Medium
Weakness type: CWE-352 · Cross-Site Request Forgery (CSRF)
CVE: CVE-2025-26963

View all ClickWhale – Link Manager, Link Shortener and Click Tracker for Affiliate Links & Link Pages vulnerabilities

At a glance

CVE-2025-26963 is a medium-severity Cross-Site Request Forgery (CSRF) vulnerability in the ClickWhale WordPress plugin, affecting versions <= 2.4.3. 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 2.4.4; sites on affected versions should update now. Disclosed February 2025, reported by Tran Nguyen Bao Khanh.

Vulnerability Overview

The ClickWhale plugin for WordPress is vulnerable to Cross-Site Request Forgery in versions up to, and including, 2.4.3. This is due to missing or incorrect nonce validation on the process_bulk_action() function. This makes it possible for unauthenticated attackers to update the plugin's settings via a forged request 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)

ClickWhale <= 2.4.3 carries this weakness at process_bulk_action(), and reaching it 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 ClickWhale the fix is 2.4.4: builds <= 2.4.3 are affected, anything from 2.4.4 onward is not.

Remediation

Update to version 2.4.4, or a newer patched version

How does WordSec protect against this?

The attempt arrives as an ordinary request to ClickWhale: WordSec's web application firewall inspects request payloads before WordPress loads them. None of that substitutes for the fix: ClickWhale 2.4.4 closes this, and updating the plugin is the step that ends it.

Firewall
Alerts

External References

https://www.cve.org/CVERecord?id=CVE-2025-26963 https://www.wordfence.com/threat-intel/vulnerabilities/id/c03a3604-3bd5-4bd8-9294-92a8f9fcdd5e https://nvd.nist.gov/vuln/detail/CVE-2025-26963

Related records

Other vulnerabilities in ClickWhale – Link Manager, Link Shortener and Click Tracker for Affiliate Links & Link Pages

CVSS Vector

4.3

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

Base

Attack VectorNetwork
Attack ComplexityLow
Privileges RequiredNone
User InteractionRequired
ScopeUnchanged
ConfidentialityNone
IntegrityLow
AvailabilityNone

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