Stored cross-site scripting in WP Data Access WordPress plugin
Key facts
- Attack vector
- Network
- Privileges required
- Low
- User interaction
- None
- Attack complexity
- Low
- Impact type
- Cross-site scripting
- Confidentiality · integrity · availability
- Low · Low · None
- Fix status
- No fix listed
Attack profile from CVSS 3.1 · CNA. Fix status from CNA. Impact type from CWE-79.
Summary
WP Data Access, a WordPress plugin from peterschulznl, is affected in versions up to and including 5.5.90. Its Data Projects front-end simple form does not sanitize or escape stored values of text columns when it renders them inside a textarea element (CWE-79). An authenticated attacker with Subscriber-level access or higher can store arbitrary web scripts that run when a user opens the affected page.
Written with Claude Haiku 5.5 from the sources below · 2026-11-07
Description from the CNA
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.
Why it matters now
SSVC decision points
CISA ADP · SSVC 2.0.3
- Exploitation
- None
- Automatable
- No
- Technical impact
- Partial
The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.
Affected products
| Vendor | Product | Affected versions | Fixed in | Status | Source |
|---|---|---|---|---|---|
| peterschulznl | WP Data Access – App Builder for Tables, Forms, Dashboards, Charts & Maps | up to 5.5.90 | — | No fix listed | CNA |
- WP Data Access – App Builder for Tables, Forms, Dashboards, Charts & Maps Vendorpeterschulznl Affected up to 5.5.90 Fixed in — No fix listed CNA
Remediation
The sources list no fixed version for WP Data Access.
Written with Claude Haiku 5.5 from the sources below · 2026-11-07
Timeline
- 2026-11-07 Threatist record created from CVE-2026-120479
- 2026-11-07 Alias added: GHSA-566w-prw9-fj3g
- 2026-11-07 CISA SSVC decision points changed
- 2026-11-07 Priority changed: MEDIUM → LOW
References
Other 7
- https://www.wordfence.com/threat-intel/vulnerabilities/id/980387d1-dd16-405d-8af2-fb7fb8b926db?source=cve
- https://plugins.trac.wordpress.org/browser/wp-data-access/tags/5.5.90/WPDataAccess/Simple_Form/WPDA_Simple_Form_Item_Textarea.php#L22
- https://plugins.trac.wordpress.org/browser/wp-data-access/tags/5.5.90/WPDataAccess/Simple_Form/WPDA_Simple_Form_Item.php#L478
- https://plugins.trac.wordpress.org/browser/wp-data-access/tags/5.5.90/WPDataAccess/Simple_Form/WPDA_Simple_Form.php#L518
- https://plugins.trac.wordpress.org/browser/wp-data-access/tags/5.5.90/WPDataAccess/Simple_Form/WPDA_Simple_Form_Data.php#L158
- https://plugins.trac.wordpress.org/browser/wp-data-access/tags/5.5.90/public/class-wp-data-access-public.php#L441
- https://plugins.trac.wordpress.org/browser/wp-data-access/tags/5.5.91
More peterschulznl vulnerabilities
- TI-2026-86553 Incorrect authorization in WP Data Access allows privilege escalation CVSS 3.1HIGH 8.1
- TI-2024-11530 WP Data Access – App, Table, Form and Chart Builder plugin <= 5.5.22 - Unauthenticated SQL Injection CVSS 3.1HIGH 7.5
- TI-2026-02796 Authorization bypass in peterschulznl WP Data Access – App Builder for Tables, Forms… CVSS 3.1MEDIUM 5.3
- TI-2026-86441 Stored cross-site scripting in WP Data Access WordPress plugin CVSS 3.1MEDIUM 6.4
- TI-2026-86440 Stored cross-site scripting in WP Data Access WordPress plugin CVSS 3.1MEDIUM 6.4
- TI-2026-00359 WP Data Access <= 5.5.63 - Authenticated (Contributor+) Stored Cross-Site Scripting via 'wpda_app' Shortcode CVSS 3.1MEDIUM 6.4
Sources
- CVE-2026-120479 · CVE Program
- CVE-2026-120479 · NVD
- FIRST EPSS
- GHSA-566w-prw9-fj3g · GitHub Advisory Database · CC BY 4.0
This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences