XSS in Themeisle Otter Blocks
CVE-2024-3344
The Otter Blocks – Gutenberg Blocks, Page Builder for Gutenberg Editor & FSE plugin for WordPress is vulnerable to Stored Cross-Site Scripting via SVG file upload in all versions up to, and including, 2.6.8 due to insufficient input sanitization and output escaping. This makes it possible for authenticated attackers, with author-level access and above, to inject arbitrary web scripts in pages that will execute whenever a user accesses an injected page.
Vulnerability class: Unrestricted File Upload
EPSS: 0.003 (24.5th percentile) — read the EPSS interpretation.
CVSS v3 metric
CVSS v3 base score 6.4 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:L/I:L/A:N.
Affected products
Weakness classification (CWE)
Public proof-of-concept exploits
References
- security@wordfence.com (Third Party Advisory)
- security@wordfence.com (Product)
Frequently asked questions
- What is CVE-2024-3344?
- CVE-2024-3344 is a medium-severity vulnerability in Themeisle Otter Blocks, classified under Unrestricted Upload of File with Dangerous Type. CVSS score: 6.4/10. Published 2024-04-11.
- How severe is CVE-2024-3344?
- Medium severity. CVSS v3 base score is 6.4 out of 10.
- Is CVE-2024-3344 known to be exploited?
- 2 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.