CVE-2026-13295The 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 sanit…
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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.
- CVSS
- 6.4 MEDIUM (v3.1, NVD)CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:L/I:L/A:N
- Weakness (CWE)
- CWE-79
- Known exploited
- Not in CISA's KEV catalog
- EPSS (exploitation in the next 30 days)
- Not loaded for this CVE
- Assigned by
- Not given
- NVD analysis
- Deferred
- Record last updated
- Jun 29, 2026
- First seen by InfoSec Signals
- Oct 9, 2026
Affected products
No affected products are listed yet.
References
- https://plugins.trac.wordpress.org/browser/siteorigin-panels/tags/2.34.1/inc/admin.php#L1085
- https://plugins.trac.wordpress.org/browser/siteorigin-panels/tags/2.34.1/inc/admin.php#L236
- https://plugins.trac.wordpress.org/browser/siteorigin-panels/tags/2.34.1/inc/admin.php#L254
- https://plugins.trac.wordpress.org/browser/siteorigin-panels/tags/2.34.1/inc/renderer.php#L950
- https://plugins.trac.wordpress.org/browser/siteorigin-panels/tags/2.34.3/inc/admin.php#L1085
- https://plugins.trac.wordpress.org/browser/siteorigin-panels/tags/2.34.3/inc/admin.php#L236
- https://plugins.trac.wordpress.org/browser/siteorigin-panels/tags/2.34.3/inc/admin.php#L254
- https://plugins.trac.wordpress.org/browser/siteorigin-panels/tags/2.34.3/inc/renderer.php#L950
- https://plugins.trac.wordpress.org/changeset?sfp_email=&sfph_mail=&reponame=&old=3585987%40siteorigin-panels&new=3585987%40siteorigin-panels&sfp_email=&sfph_mail=
- https://www.wordfence.com/threat-intel/vulnerabilities/id/7830b3dc-7d20-4516-b4d6-57636ca773e9?source=cve
The CVE record on cve.org NVD's entry
The CVE record is authoritative. Products marked “from the name” were identified from the CNA's free-text names, not a CPE, and are matched less certainly. This product uses the NVD API but is not endorsed or certified by the NVD.