Vulnerability · Published Mar 13, 2024 · Assigned by Wordfence
CVE-2024-1691Otter Blocks PRO <= 2.6.3 - Unauthenticated Stored Cross-Site Scripting via SVG Upload
Medium 6.1
In plain English
A medium-severity cross-site scripting in Otter Blocks PRO – Gutenberg Blocks, Page Builder for Gutenberg Editor & FSE from Themisle. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 0.5% (higher than 41% of all known vulnerabilities).
Official description
The Otter Blocks – Gutenberg Blocks, Page Builder for Gutenberg Editor & FSE PRO plugin for WordPress is vulnerable to Stored Cross-Site Scripting via file upload form, which allows SVG uploads, in all versions up to, and including, 2.6.3 due to insufficient input sanitization and output escaping. This makes it possible for unauthenticated attackers to inject arbitrary web scripts in pages that will execute whenever a user accesses an injected page. Note that the patch in 2.6.4 allows SVG uploads but the uploaded SVG files are sanitized.
Affected products (as reported)
| Vendor | Product | Versions |
|---|---|---|
| Themisle | Otter Blocks PRO – Gutenberg Blocks, Page Builder for Gutenberg Editor & FSE | 0 – through 2.6.3 |
Weakness: CWE-79 · Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N