TextBuilder 1.0.0 - 1.1.1 - Cross-Site Request Forgery to Privilege Escalation via Account Takeover
Strategic Overview
- Status
- Patched in 1.2.0
- Affected Plugin
- TextBuilder
- Affected Version
1.0.0 – 1.1.1- CVSS
- 8.8High
- Weakness type
- CWE-352 · Cross-Site Request Forgery (CSRF)
- CVE
CVE-2025-9213
At a glance
CVE-2025-9213 is a high-severity Cross-Site Request Forgery (CSRF) vulnerability in the TextBuilder WordPress plugin, affecting versions 1.0.0 – 1.1.1. It carries a CVSS score of 8.8 (reachable over the network; low attack complexity; high confidentiality, integrity, availability impact). Exploitation requires no authentication. The issue is fixed in version 1.2.0; sites on affected versions should update now. Disclosed October 2025, reported by kr0d.
Vulnerability Overview
The TextBuilder plugin for WordPress is vulnerable to Cross-Site Request Forgery in versions 1.0.0 to 1.1.1. This is due to missing or incorrect nonce validation on the 'handleToken' function. This makes it possible for unauthenticated attackers to update a user's authorization token via a forged request granted they can trick a site administrator into performing an action such as clicking on a link. Once the token is updated, an attacker can update the user's password and email address.
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. A successful exploit has high impact on confidentiality, integrity, availability — full site compromise territory.
CWE-352: Cross-Site Request Forgery (CSRF)
TextBuilder 1.0.0 – 1.1.1 carries this weakness at handleToken, 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 TextBuilder the fix is 1.2.0: builds 1.0.0 – 1.1.1 are affected, anything from 1.2.0 onward is not.
Remediation
Update to version 1.2.0, or a newer patched version
How does WordSec protect against this?
The attempt arrives as an ordinary request to TextBuilder: WordSec's web application firewall inspects request payloads before WordPress loads them. None of that substitutes for the fix: TextBuilder 1.2.0 closes this, and updating the plugin is the step that ends it.
- Firewall
- Alerts
External References
Vulnerability data © Defiant, Inc., provided under the Wordfence Intelligence T&C