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CVE-2026-109998 Details

ANALYZED

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

Description

The Mang Board plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the 'content' parameter in all versions up to, and including, 2.4.3 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. This is exploitable because the wp_ajax_nopriv_mb_template endpoint is publicly accessible without authentication, nonce verification is not enforced for the content_reply mode, and admin-ajax.php responds with Content-Type: text/html, causing browsers to execute injected tags embedded in the JSON response body.

Metrics

CVSS 3.x Severity and Vector Strings:

VolerionCVSS-B:6.1 MEDIUMVector:CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N

CNA: [email protected]CVSS-B:7.2 HIGHVector:CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:L/I:L/A:N

References to Advisories, Solutions, and Tools

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URL	Source(s)	Tag(s)
https://plugins.trac.wordpress.org/browser/mangboard/tags/2.4.3/api/mb-board.php#L24	[email protected]	Source CodeVendor
https://plugins.trac.wordpress.org/browser/mangboard/tags/2.4.3/api/mb-template.php#L150	[email protected]	Source CodeVendor
https://plugins.trac.wordpress.org/browser/mangboard/tags/2.4.3/api/mb-template.php#L177	[email protected]	Source CodeVendor
https://plugins.trac.wordpress.org/browser/mangboard/tags/2.4.3/includes/functions/func.api.php#L146	[email protected]	Source CodeVendor
https://plugins.trac.wordpress.org/changeset?reponame=&old=3738899%40mangboard&new=3738899%40mangboard	[email protected]	Source CodeVendor
https://www.wordfence.com/threat-intel/vulnerabilities/id/9fe455dc-8138-49d0-97a1-b0dce111d23b?source=cve	[email protected]	AdvisoryBundleRemedy

see all 6 references

Weakness Enumeration

CWE-ID	CWE Name	Source
CWE-79	Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')	[email protected]

Affected Products

Product	Versions
Mang Board	<= 2.4.3 (semver)
CPE cpe:2.3:a:mangboard:mang_board::::::wordpress::* Remediation Upgrade: 2.4.4moderate effort

Change History

2 change records found show changes

Date	Action	Recorded By
Oct 16, 2026	CVE Modified	CISA-ADP
Oct 16, 2026	New CVE Received	[email protected]