CVE-2026-48760

MEDIUM

Symfony: HtmlSanitizer URL Parser Deny Gates Underinclusive: Percent-Encoded BiDi Marks and Unicode Whitespace Bypass Visual-Spoofing Defense

Title source: cna
STIX 2.1

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, 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.

References (5)

Core 5

Scores

CVSS v3 6.1
EPSS 0.0026
EPSS Percentile 17.5%
Attack Vector NETWORK
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N

CISA SSVC

Vulnrichment
Exploitation none
Automatable no
Technical Impact partial

Details

CWE
CWE-1007 CWE-451
Status published
Products (7)
sensiolabs/symfony 6.1.0 - 6.4.41
symfony/html-sanitizer >= 6.1.0, < 6.4.41
symfony/html-sanitizer >= 7.0.0-BETA1, < 7.4.13
symfony/html-sanitizer >= 8.0.0-BETA1, < 8.0.13
symfony/symfony >= 6.1.0, < 6.4.41
symfony/symfony >= 7.0.0-BETA1, < 7.4.13
symfony/symfony >= 8.0.0-BETA1, < 8.0.13
Published Jul 14, 2026
Tracked Since Jul 15, 2026