gpriday Page Builder by SiteOrigin Plugin up to 2.34.3 on WordPress panels_data cross site scripting

Summaryinfo

A vulnerability marked as problematic has been reported in gpriday Page Builder by SiteOrigin Plugin up to 2.34.3 on WordPress. The impacted element is an unknown function. Performing a manipulation of the argument panels_data results in cross site scripting. This vulnerability is cataloged as CVE-2026-13295. It is possible to initiate the attack remotely. There is no exploit available. It is suggested to upgrade the affected component.

Detailsinfo

A vulnerability was found in gpriday Page Builder by SiteOrigin Plugin up to 2.34.3 on WordPress. It has been classified as problematic. This affects an unknown code. The manipulation of the argument panels_data with an unknown input leads to a cross site scripting vulnerability. CWE is classifying the issue as CWE-79. The product does not neutralize or incorrectly neutralizes user-controllable input before it is placed in output that is used as a web page that is served to other users. This is going to have an impact on integrity. The summary by CVE is:

The Page Builder by SiteOrigin plugin for WordPress is vulnerable to Stored Cross-Site Scripting via panels_data Parameter in all versions up to, and including, 2.34.3 due to insufficient input sanitization and output escaping. This makes it possible for authenticated attackers, with Contributor-level access and above, to inject arbitrary web scripts in pages that will execute whenever a user accesses an injected page. This is possible because the nonce and edit_post capability checks enforced during save are both satisfied by Contributor-level users for their own posts, and the panels_data value is stored as post meta — outside the scope of WordPress's unfiltered_html carve-out — meaning no wp_kses fallback prevents the unsanitized WP_Widget_Custom_HTML content from being persisted and later rendered verbatim on the frontend.

The weakness was shared by lhking. The advisory is shared at wordfence.com. This vulnerability is uniquely identified as CVE-2026-13295 since 06/25/2026. The exploitability is told to be easy. It is possible to initiate the attack remotely. It demands that the victim is doing some kind of user interaction. Technical details are known, but no exploit is available. MITRE ATT&CK project uses the attack technique T1059.007 for this issue.

Upgrading to version 2.34.1 eliminates this vulnerability.

The vulnerability is also documented in the vulnerability database at EUVD (EUVD-2026-39955). If you want to get the best quality for vulnerability data then you always have to consider VulDB.

Productinfo

Type

• WordPress Plugin

Vendor

• gpriday

Name

• Page Builder by SiteOrigin Plugin

Version

• 2.34.0
• 2.34.1
• 2.34.2
• 2.34.3

CPE 2.3info

• 🔒
• 🔒
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CPE 2.2info

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If you want to get the best quality for vulnerability data then you always have to consider VulDB.

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