CVE-2026-49971— Laravel-Mediable < 7.0.0 Stored XSS via SVG File Upload
Possible ATT&CK Techniques 1AI
T1059.007 · JavaScriptAffected Version Matrix 1
| Vendor | Product | Version Range | Status |
|---|---|---|---|
| plank | laravel-mediable | < 7.0.0 | affected |
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I. Basic Information for CVE-2026-49971
Vulnerability Information
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Vulnerability Title
Laravel-Mediable < 7.0.0 Stored XSS via SVG File Upload
Source: NVD (National Vulnerability Database)
Vulnerability Description
Laravel-Mediable before 7.0.0 contains a stored cross-site scripting vulnerability that allows authenticated or anonymous users to execute arbitrary JavaScript by uploading unsanitized SVG files containing embedded scripts in onload event handlers, script tags, or foreignObject elements. Attackers can store persistent XSS payloads in uploaded SVG files that execute with full DOM access when victims open or preview the file, enabling session cookie theft, CSRF token capture, and account takeover.
Source: NVD (National Vulnerability Database)
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:N/I:L/A:L
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 |
|---|---|---|---|---|
| plank | laravel-mediable | 0 ~ 7.0.0 | - |
II. Public POCs for CVE-2026-49971
| # | POC Description | Source Link | Shenlong Link |
|---|
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No public POC found.
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Patches & Fixes for CVE-2026-49971 (1)
Vendor Pages for CVE-2026-49971 (1)
Other References for CVE-2026-49971 (1)
- 🔗 Page Not Found | VulnCheckthird-party-advisory
Same Patch Batch · plank · 2026-07-13 · 4 CVEs total
| CVE-2026-49970 | 8.8 HIGH | Laravel-Mediable < 7.0.0 Path Traversal via File::sanitizePath() |
| CVE-2026-49972 | 8.8 HIGH | Laravel-Mediable < 7.0.0 File Upload RCE via Extension Bypass |
| CVE-2026-49969 | 7.4 HIGH | Laravel-Mediable < 7.0.0 SSRF via RemoteUrlAdapter URL Handling |
IV. Related Vulnerabilities
Same product: laravel-mediable
Same vendor: plank
Same weakness: CWE-79
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V. Comments for CVE-2026-49971
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