CVE-2026-109933 Details
Description
The Otter Blocks WordPress plugin before 3.2.8 does not properly sanitize and escape user-supplied block styling values before writing them into an inline stylesheet, allowing users with contributor-level access and above to inject arbitrary web scripts that execute when any visitor, including administrators, views the affected post.
A stored cross-site scripting vulnerability has been identified in the Otter Blocks WordPress plugin, affecting versions prior to 3.2.8. The issue arises because the plugin fails to properly sanitize and escape user-supplied block styling values before injecting them into an inline stylesheet. This flaw allows users with contributor-level access and above to inject arbitrary scripts that execute when any visitor, including administrators, views the affected post.
Users are advised to update the Otter Blocks WordPress plugin to version 3.2.8 or later.
Metrics
CVSS 4.0 Severity and Vector Strings:
VolerionCVSS 3.x Severity and Vector Strings:
No data available for CVSS Version 2.0 on this CVE.
Volerion
Assessed Oct 23, 2026CISA-ADP
Assessed Oct 23, 2026References to Advisories, Solutions, and Tools
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| URL | Source(s) | Tag(s) |
|---|---|---|
| https://wpscan.com/vulnerability/a2a19770-9ee2-4164-9ea6-a882cf0085e9/ | [email protected] | AdvisoryExploitRemedy |
Weakness Enumeration
| CWE-ID | CWE Name | Source |
|---|---|---|
| CWE-79 | Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') | CISA-ADP |
Affected Products
| Product | Versions |
|---|---|
| Otter Blocks | < 3.2.8 (semver) |
CPE
Remediation
| |
Change History
2 change records found show changes
| Date | Action | Recorded By |
|---|---|---|
| Oct 23, 2026 | CVE Modified | CISA-ADP |
| Oct 23, 2026 | New CVE Received | [email protected] |