Stored XSS in Page Builder by SiteOrigin via panels_info.class
Key facts
- Attack vector
- Network
- Privileges required
- High
- User interaction
- Required
- Attack complexity
- Low
- Impact type
- Cross-site scripting
- Confidentiality · integrity · availability
- High · High · High
- Fix status
- Fixed
Attack profile from CVSS 3.1 · CISA ADP. Fix status from CNA. Impact type from CWE-79.
Summary
The Page Builder by SiteOrigin WordPress plugin before 2.38.0 does not sanitize or escape a widget property before storing and outputting it in the page builder interface, tracked as CWE-79. An attacker with the contributor role or above can store a script that runs against higher-privileged users who open the affected post in the editor. An exploit link is listed in the references.
Written with Claude Haiku 5.5 from the sources below · 2026-10-29
Description from the CNA
The Page Builder by SiteOrigin WordPress plugin before 2.38.0 does not sanitize or escape a widget property before storing it and outputting it in the page builder interface, which could allow users with the contributor role and above to perform Stored Cross-Site Scripting attacks against higher-privileged users who open the affected post in the editor.
Why it matters now
SSVC decision points
CISA ADP · SSVC 2.0.3
- Exploitation
- None
- Automatable
- No
- Technical impact
- Total
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 |
|---|---|---|---|---|---|
| Unknown | Page Builder by SiteOrigin | before 2.38.0 | 2.38.0 | Patch available | CNA |
- Page Builder by SiteOrigin VendorUnknown Affected before 2.38.0 Fixed in 2.38.0 Patch available CNA
Remediation
Update Page Builder by SiteOrigin to version 2.38.0.
Written with Claude Haiku 5.5 from the sources below · 2026-10-29
- Fix · CNA Page Builder by SiteOrigin (Unknown) Fixed in 2.38.0
Fixed in the same release
Records fixed by the same vendor advisory or release, as the CNA lists them.
- Release ·
Page Builder by SiteOrigin 2.38.0
2 records Highest priority Priority LOW 2 LOW
Other records, highest priority first
- TI-2026-81696 Page Builder by SiteOrigin: Contributor+ Reads Private Posts via Loop WidgetPriority LOW 13
Timeline
- 2026-10-28 Threatist record created from CVE-2026-110506
- 2026-10-28 Alias added: GHSA-mc48-45x9-jh54
- 2026-10-28 CVSS score added · CISA ADP
- 2026-10-28 Weakness changed · CISA ADP
- 2026-10-28 CISA SSVC decision points changed
References
Sources
- CVE-2026-110506 · CVE Program
- CVE-2026-110506 · NVD
- FIRST EPSS
- GHSA-mc48-45x9-jh54 · 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