Ultimate Blocks: Cross-site scripting
Ultimate Blocks is affected by cross-site scripting. Exposure depends on how the affected operation is made reachable by the site. Injected script can execute in the affected site's origin when the vulnerable output is viewed.
- Component
- Ultimate Blocks
- Plugin slug
ultimate-blocks- Affected
- See vendor advisory
- Safe version
- See mitigation notes
- Published
- Jul 29, 2024
This CVE was published Jul 29, 2024 and is one of 15 known issues for this plugin.
Update, patch or deactivate.
Update Ultimate Blocks to a release outside the affected range, or disable and remove it until a fixed version is available.
No confirmed safe version is listed. Consider a vendor-supported patch or temporarily restricting the affected functionality while you assess the risk.
Deactivate only when warranted by your risk profile, or when advised by your hosting provider in the limited circumstances where the vulnerability cannot otherwise be mitigated. If you’re unsure which action is appropriate, contact Fused or your hosting provider for guidance.
Technical description
The Ultimate Blocks WordPress plugin before 3.2.0 does not validate and escape some of its post-grid block attributes before outputting them back in a page/post where the block is embed, which could allow users with the contributor role and above to perform Stored Cross-Site Scripting attacks
CVE / CNA vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:L/I:L/A:N