CVE-2026-8042— Github Shortcode <= 0.1 - Authenticated (Contributor+) Stored Cross-Site Scripting
Possible ATT&CK Techniques 1AI
T1189 · Drive-by CompromiseAffected Version Matrix 1
| Vendor | Product | Version Range | Status |
|---|---|---|---|
| octalmage | Github Shortcode | ≤ 0.1 | affected |
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I. Basic Information for CVE-2026-8042
Vulnerability Information
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Vulnerability Title
Github Shortcode <= 0.1 - Authenticated (Contributor+) Stored Cross-Site Scripting
Source: NVD (National Vulnerability Database)
Vulnerability Description
The Github Shortcode plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the 'repo' shortcode attribute in the 'github' shortcode in all versions up to, and including, 0.1 due to insufficient input sanitization and output escaping. This makes it possible for authenticated attackers, with Contributor-level access and above, to inject arbitrary web scripts in pages that will execute whenever a user accesses an injected page.
Source: NVD (National Vulnerability Database)
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:L/I:L/A:N
Source: NVD (National Vulnerability Database)
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: NVD (National Vulnerability Database)
Affected Products
| Vendor | Product | Affected Versions | CPE | Subscribe |
|---|---|---|---|---|
| octalmage | Github Shortcode | 0 ~ 0.1 | - |
II. Public POCs for CVE-2026-8042
| # | POC Description | Source Link | Shenlong Link |
|---|
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IV. Related Vulnerabilities
Same weakness: CWE-79
- CVE-2026-42877
FacturaScripts: Stored XSS via product reference in sales/pu - CVE-2026-42197
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Budibase: Unrestricted Upload of File with Dangerous Type - CVE-2026-48149
Budibase: Stored XSS in Text component: BASIC users execute - CVE-2026-49044
WordPress Advanced Custom Fields: Font Awesome Field plugin
V. Comments for CVE-2026-8042
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