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VULNERABILITIES

CVE-2026-109936 Details

ANALYZED

This CVE record has been analyzed and enriched by NVDAPI.com as an independent party.

Description

The Otter Blocks WordPress plugin before 3.2.8 does not correctly bound a pattern it uses to rewrite its dynamic-content tokens while rendering blocks, so the pattern can consume the quote that closes an HTML attribute and pull adjacent unescaped data into the markup as new attributes. This allows unauthenticated users to achieve stored Cross-Site Scripting that executes in the browser of any visitor who views an affected page, including a logged-in administrator.

Metrics

CVSS 3.x Severity and Vector Strings:

NDDVolerionCVSS-B:9.3 CRITICALVector:CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:H/I:H/A:N
CNA: CISA-ADPCVSS-B:7.5 HIGHVector:CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:H

References to Advisories, Solutions, and Tools

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URLSource(s)Tag(s)
https://wpscan.com/vulnerability/c9f264ad-0857-4d1f-9f20-694469d7bee0/ [email protected]AdvisoryExploitRemedy

Weakness Enumeration

CWE-IDCWE NameSource
CWE-79Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')CISA-ADP

Affected Products

ProductVersions
Otter Blocks
< 3.2.8 (semver)

CPE

  • cpe:2.3:a:themeisle:otter_blocks:*:*:*:*:*:wordpress:*:*

Remediation

  • Upgrade: 3.2.8moderate effort

Change History

2 change records found show changes

QUICK INFO

CVE Dictionary Entry:
CVE-2026-109936
NVD Published Date:
Oct 23, 2026
NVD Last Modified:
Oct 23, 2026
Source:
[email protected]
CVE-2026-109936 Details - Not Deferred