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CVE-2026-78392— Link Library < 7.9.6 - Contributor+ Stored XSS via 'link_target' Parameter

Quick assessment

Affected
Unknown Link Library
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.

在 7.9.6 版本之前的 Link Library WordPress 插件中，未对链接字段进行清理和转义，便将其输出到链接预览的属性中。这使得拥有“贡献者”（Contributor）角色及更高权限的用户能够实施存储型跨站脚本（Stored XSS）攻击。由于该预览功能无需身份验证，且不会检查链接是否已发布，因此只要提交未获批准的链接，任何打开该预览的访客都可能受到攻击影响。

AI Predicted 6.5 Difficulty: Easy
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I. Basic Information for CVE-2026-78392

Vulnerability Information
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Vulnerability Title
Link Library < 7.9.6 - Contributor+ Stored XSS via 'link_target' Parameter
Source: CVE Program / CVE List V5
Vulnerability Description
The Link Library WordPress plugin before 7.9.6 does not sanitise and escape a link field before outputting it inside an attribute of a link preview, allowing users with the Contributor role and above to perform Stored Cross-Site Scripting attacks. The preview is generated without authentication and without checking whether the link has been published, so an unapproved submission is enough to reach any visitor who opens it.
Source: CVE Program / CVE List V5
CVSS Information
N/A
Source: CVE Program / CVE List V5
Vulnerability Type
N/A
Source: CVE Program / CVE List V5

Affected Products

Vendor Product Affected Versions CPE Subscribe
Unknown Link Library 0 ~ 7.9.6 -

II. Public POCs for CVE-2026-78392

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III. Intelligence Information for CVE-2026-78392

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Other References for CVE-2026-78392 (1)

Same Patch Batch · Unknown · 2026-10-22 · 13 CVEs total

CVE-2026-97328 WebP Express < 0.25.16 - Unauthenticated Stored XSS via Alter HTML Parser
CVE-2026-88849 MasterStudy LMS 3.7.13 - 3.7.54 - Instructor+ Arbitrary User Display Name Update via Stude
CVE-2026-111971 Photo Engine < 6.5.8 - Author+ Stored XSS via Collection Name
CVE-2026-111972 Photo Engine < 6.5.8 - Author+ Arbitrary Attachment Deletion via IDOR
CVE-2026-111958 Royal MCP < 1.5.7 - Authentication Bypass via Preview Link Token
CVE-2026-110011 MB Custom Post Types & Custom Taxonomies 2.4.0 - 2.12.2 - Contributor+ Post Type Definitio
CVE-2026-110010 MB Custom Post Types & Custom Taxonomies 2.0.2 - 2.12.2 - Unauthenticated Settings Reset v
CVE-2026-103234 WP Ultimate Review < 2.4.5 - Unauthenticated Arbitrary Shortcode Execution via Reviewer Em
CVE-2026-100142 FluentCart < 2.2.0 - Unauthenticated Customer Address Disclosure via IDOR
CVE-2026-109931 Infility Global < 2.16.25 - Unauthenticated Google Translate API Key Update
CVE-2026-109927 CM HIPAA Forms < 3.3.2 - hipaa_forms+ Privilege Escalation via cm_hipaa_update_user_role
CVE-2026-109987 PixelYourSite (Free & Pro) - Unauthenticated Stored XSS via Cookie

IV. Related Vulnerabilities

Same product: Link Library
Same vendor: Unknown

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