XSS in Plank Laravel-Mediable
CVE-2026-49971
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.
Vulnerability class: XSS (Cross-Site Scripting)
Published · last modified .
CVSS v3 metric
CVSS v3 base score 6.1 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:N/I:L/A:L.
EPSS exploit prediction
EPSS: 0.004 (27.7th percentile), scored .
Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 28th percentile — 27.7% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.004 · newest: 0.004 · change: 0.000
Affected products
- Plank Laravel-Mediable — versions 0
Weakness classification (CWE)
References
- github.com/plank/laravel-mediable/releases/tag/7.0.0 (release-notes, patch)
- github.com/plank/laravel-mediable/commit/65046b2162fac23ec5d5e8fbdff01a9a080400… (patch)
- www.vulncheck.com/advisories/laravel-mediable-stored-xss-via-svg-file-upload (third-party-advisory)
Frequently asked questions
- What is CVE-2026-49971?
- CVE-2026-49971 is a medium-severity vulnerability in Plank Laravel-Mediable, classified under Cross-site Scripting. CVSS score: 6.1/10. Published 2026-07-13.
- How severe is CVE-2026-49971?
- Medium severity. CVSS v3 base score is 6.1 out of 10.