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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 媒体库助手（Media Library Assistant）插件在 3.35 及更早版本中，通过批量编辑预设（preset）的导出/导入机制存在存储型跨站脚本（Stored Cross-Site Scripting, XSS）漏洞。其成因在于 函数和 模板中，预设字段值在渲染为 HTML 属性上下文时缺乏充分的输出转义。 虽然对于不具备 能力的用户，预设导出时会应用 过滤，但由于恶意载荷由引号和 HTML 属性组成，而非 HTML 标签，因此无法阻止属性注入攻击。 当预设值被读取并渲染时，它们会

CVSS 6.4 · Medium
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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

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 (1)

Other References for CVE-2026-6642 (3)

Other References for CVE-2026-6642 (2)

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

V. Comments for CVE-2026-6642

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