Vulnerability in Sensiolabs Symfony
CVE-2026-48760
Symfony is a PHP framework for web and console applications and a set of reusable PHP components. From 6.1.0 until 6.4.41, 7.4.13, and 8.0.13, UrlSanitizer::parse() rejected raw BiDi formatting characters but not percent-encoded forms and used an ASCII-only whitespace check, allowing sanitized URLs to retain visual-spoofing characters that downstream consumers could decode or display. This issue is fixed in versions 6.4.41, 7.4.13, and 8.0.13.
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:L/I:L/A:N.
EPSS exploit prediction
EPSS: 0.003 (25.3th percentile), scored .
Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 25th percentile — 25.3% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.003 · newest: 0.003 · change: 0.000
Affected products
- Sensiolabs Symfony
- Symfony Html-Sanitizer — versions >= 6.1.0, < 6.4.41, >= 7.0.0-BETA1, < 7.4.13, >= 8.0.0-BETA1, < 8.0.13
- Symfony — versions >= 6.1.0, < 6.4.41, >= 7.0.0-BETA1, < 7.4.13, >= 8.0.0-BETA1, < 8.0.13
Weakness classification (CWE)
References
- github.com/symfony/symfony/security/advisories/GHSA-v3wm-qf9p-c549 (Patch, Vendor Advisory)
- github.com/symfony/symfony/commit/b21a626fd90f5c12d2db432c629eed3e780ba2f8 (Patch)
- github.com/symfony/symfony/releases/tag/v6.4.41 (Product, Release Notes)
- github.com/symfony/symfony/releases/tag/v7.4.13 (Product, Release Notes)
- github.com/symfony/symfony/releases/tag/v8.0.13 (Product, Release Notes)
Frequently asked questions
- What is CVE-2026-48760?
- CVE-2026-48760 is a medium-severity vulnerability in Sensiolabs Symfony, classified under User Interface (UI) Misrepresentation of Critical Information. CVSS score: 6.1/10. Published 2026-07-14.
- How severe is CVE-2026-48760?
- Medium severity. CVSS v3 base score is 6.1 out of 10.