CVE-2024-1691

MEDIUM 6.1

Otter Blocks PRO <= 2.6.3 - Unauthenticated Stored Cross-Site Scripting via SVG Upload

CVSS Score

6.1

EPSS Score

0.0%

EPSS Percentile

0th

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.

CWE	CWE-79
Vendor	themisle
Product	otter blocks pro – gutenberg blocks, page builder for gutenberg editor & fse
Published	Mar 13, 2024
Last Updated	Apr 8, 2026

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CVSS v3 Breakdown

CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N

Attack Vector

Attack Complexity

Privileges Required

User Interaction

Scope

Confidentiality

Integrity

Availability

Affected Versions

Themisle / Otter Blocks PRO – Gutenberg Blocks, Page Builder for Gutenberg Editor & FSE

0 ≤ 2.6.3

References

NVD ↗ CVE.org ↗ EPSS Data ↗

wordfence.com: https://www.wordfence.com/threat-intel/vulnerabilities/id/77838bf8-7809-4dd6-87f1-a9bda40275a6?source=cve store.themeisle.com: https://store.themeisle.com/?edd_action=view_changelog&name=Otter%20Pro

Credits

wesley