CVE-2026-48761
Medium
Description
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, UrlAttributeSanitizer::getSupportedAttributes() omitted URL-bearing attributes on <object>, <applet>, <iframe>, and <img>, and <meta http-equiv="refresh"> URLs inside content bypassed URL sanitization, allowing explicitly enabled elements or attributes to pass javascript: and similar payloads into sanitized output. This issue is fixed in versions 6.4.41, 7.4.13, and 8.0.13.
SeverityMedium
CVSS6.1
Exploit probability—
Product
Sensiolabs Symfony
PublishedJul 14, 2026
First seenJul 14, 2026
Weakness typeCWE-79Cross-site scripting (XSS)CWE-1023CWE-1023
How to fix
Update
- sensiolabs symfony6.4.41, 7.4.13, 8.0.13 or later
- symfony/html-sanitizer6.4.41, 7.4.13, 8.0.13 or later
- symfony/symfony6.4.41, 7.4.13, 8.0.13 or later
Affected products
| Product | Affected versions | Fixed in |
|---|---|---|
| sensiolabs symfony | 6.1.0 ≤ v < 6.4.41, 7.0.0 ≤ v < 7.4.13, 8.0.0 ≤ v < 8.0.13 | 6.4.41, 7.4.13, 8.0.13 |
| symfony/html-sanitizerPackagist | 6.1.0 ≤ v < 6.4.41, 7.0.0 ≤ v < 7.4.13, 8.0.0 ≤ v < 8.0.13 | 6.4.41, 7.4.13, 8.0.13 |
| symfony/symfonyPackagist | 6.1.0 ≤ v < 6.4.41, 7.0.0 ≤ v < 7.4.13, 8.0.0 ≤ v < 8.0.13 | 6.4.41, 7.4.13, 8.0.13 |
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