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CVE-2026-6642— Media Library Assistant <= 3.35 - Authenticated (Author+) Stored Cross-Site Scripting via Bulk Edit Preset Export/Import

Quick assessment

Affected
dglingren Media Library Assistant
Exploitation
No confirmed in-the-wild exploitation; assess based on exposure
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

WordPress Media Library Assistant是WordPress基金会的一个媒体库管理助手。 WordPress Media Library Assistant 3.35及之前版本存在跨站脚本漏洞，该漏洞源于批量编辑预设导出/导入机制中预设字段值在HTML属性上下文中输出转义不足，未使用esc_attr()转义并直接插入input元素的value属性，可能导致存储型跨站脚本，具有Author级别及以上权限的认证攻击者可注入任意Web脚本，并在管理员导入被污染的预设且目标输入字段获得焦

CVSS 6.4 · Medium EPSS 0.36% · P29

Affected Version Matrix 1

VendorProduct Version RangeStatus
dglingren Media Library Assistant ≤ 3.35 affected
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I. Basic Information for CVE-2026-6642

Vulnerability Information
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Vulnerability Title
Media Library Assistant <= 3.35 - Authenticated (Author+) Stored Cross-Site Scripting via Bulk Edit Preset Export/Import
Source: CVE Program / CVE List V5
Vulnerability Description
The Media Library Assistant plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the bulk edit preset export/import mechanism in versions up to and including 3.35. This is due to insufficient output escaping on preset field values when they are rendered in HTML attribute contexts in the mla_generate_bulk_edit_form_fieldsets() function and mla-bulk-edit-fieldsets.tpl template. While wp_kses() filtering is applied during preset export for users without unfiltered_html capability, this does not prevent attribute injection attacks since the malicious payload consists of quotes and HTML attributes rather than HTML tags. When preset values are retrieved and rendered, they are directly assigned to template variables without esc_attr() escaping and then inserted into input element value attributes via simple string replacement. This makes it possible for authenticated attackers, with Author-level access and above (upload_files capability), to inject arbitrary web scripts that execute when an administrator imports the poisoned preset and the targeted input field receives focus.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:L/I:L/A:N
Source: CVE Program / CVE List V5
Vulnerability Type
在Web页面生成时对输入的转义处理不恰当(跨站脚本)
Source: CVE Program / CVE List V5
Vulnerability Title
WordPress Media Library Assistant 跨站脚本漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
WordPress Media Library Assistant是WordPress基金会的一个媒体库管理助手。 WordPress Media Library Assistant 3.35及之前版本存在跨站脚本漏洞，该漏洞源于批量编辑预设导出/导入机制中预设字段值在HTML属性上下文中输出转义不足，未使用esc_attr()转义并直接插入input元素的value属性，可能导致存储型跨站脚本，具有Author级别及以上权限的认证攻击者可注入任意Web脚本，并在管理员导入被污染的预设且目标输入字段获得焦
Source: CNNVD (China National Vulnerability Database)
CVSS Information
N/A
Source: CNNVD (China National Vulnerability Database)
Vulnerability Type
N/A
Source: CNNVD (China National Vulnerability Database)

Affected Products

Vendor Product Affected Versions CPE Subscribe
dglingren Media Library Assistant 0 ~ 3.35 -

II. Public POCs for CVE-2026-6642

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III. Intelligence Information for CVE-2026-6642

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Vendor Pages for CVE-2026-6642 (2)

Other References for CVE-2026-6642 (4)

Same Patch Batch · dglingren · 2026-09-11 · 3 CVEs total

CVE-2026-6641 6.4 MEDIUM Media Library Assistant <= 3.35 - Authenticated (Contributor+) Stored Cross-Site Scripting
CVE-2026-6640 6.4 MEDIUM Media Library Assistant <= 3.35 - Authenticated (Contributor+) Stored Cross-Site Scripting

IV. Related Vulnerabilities

Same product: Media Library Assistant
Same vendor: dglingren
Same weakness: CWE-79