CVE-2026-120479

WP Data Access <= 5.5.90 - Authenticated (Subscriber+) Stored Cross-Site Scripting via TEXT-family Column Value in Front-end Data Project Form

2026-11-06 18:26
Afifudin Maarif

Strategic Overview

Status
Patched in 5.5.91
Affected Plugin
WP Data Access – App Builder for Tables, Forms, Dashboards, Charts & Maps
Affected Version
<= 5.5.90
CVSS
6.4Medium
Weakness type
CWE-79 · Improper Neutralization of Input During Web Page Generation
CVE
CVE-2026-120479
View all WP Data Access – App Builder for Tables, Forms, Dashboards, Charts & Maps vulnerabilities

At a glance

CVE-2026-120479 is a medium-severity Improper Neutralization of Input During Web Page Generation vulnerability in the WP Data Access WordPress plugin, affecting versions <= 5.5.90. It carries a CVSS score of 6.4 (reachable over the network; low attack complexity). Exploitation requires an authenticated account at Subscriber level or above. The issue is fixed in version 5.5.91; sites on affected versions should update now. Disclosed November 2026, reported by Afifudin Maarif.

Vulnerability Overview

The WP Data Access – App Builder for Tables, Forms, Dashboards, Charts & Maps plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the Data Projects front-end simple form in versions up to, and including, 5.5.90 This is due to insufficient input sanitization and output escaping on the value of TEXT/TINYTEXT/MEDIUMTEXT/LONGTEXT columns rendered by the WPDA_Simple_Form_Item_Textarea::show_item() method, which emits the stored column value directly inside a <textarea> element after only replacing '&' with '&'. This makes it possible for authenticated attackers, with Subscriber-level access and above, to inject arbitrary web scripts in pages that will execute whenever a user accesses an injected page.

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-79: Improper Neutralization of Input During Web Page Generation

WP Data Access <= 5.5.90 carries this weakness at with, and reaching it takes an account at Subscriber level or above. Cross-site scripting happens when input from a request is written into a page without being escaped for the context it lands in, so the browser parses attacker-supplied text as markup or script.

Injected script runs with the privileges of whoever views the affected page, which is how these flaws turn into administrator session theft, silent account creation or persistent backdoors in page content. For WP Data Access the fix is 5.5.91: builds <= 5.5.90 are affected, anything from 5.5.91 onward is not.

Remediation

Update to version 5.5.91, or a newer patched version

How does WordSec protect against this?

An attacker needs Subscriber access first, so the firewall sees the attempt as traffic from a logged-in account: WordSec's web application firewall inspects request payloads before WordPress loads them. None of that substitutes for the fix: WP Data Access 5.5.91 closes this, and updating the plugin is the step that ends it.

  • Firewall
  • Alerts

External References

https://www.cve.org/CVERecord?id=CVE-2026-120479https://www.wordfence.com/threat-intel/vulnerabilities/id/980387d1-dd16-405d-8af2-fb7fb8b926dbhttps://nvd.nist.gov/vuln/detail/CVE-2026-120479

Related records

Vulnerability data © Defiant, Inc., provided under the Wordfence Intelligence T&C