CVE-2026-48761: 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…

PriorityP431medium6.1CVSS 3.1

AVNACLPRNUIRSCCLILAN

EPSS

0.27%

18.6th percentile

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 , , , and , and 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.

Affected

15 ranges

Vendor	Product	Version range	Fixed in
sensiolabs	symfony	>= 6.1.0 < 6.4.41	6.4.41
sensiolabs	symfony	>= 7.0.0 < 7.4.13	7.4.13
sensiolabs	symfony	>= 8.0.0 < 8.0.13	8.0.13
symfony	html-sanitizer	—	—
symfony	html-sanitizer	—	—
symfony	html-sanitizer	—	—
symfony	html-sanitizer	>= 6.1.0 < 6.4.41	6.4.41
symfony	html-sanitizer	>= 7.0.0 < 7.4.13	7.4.13
symfony	html-sanitizer	>= 8.0.0 < 8.0.13	8.0.13
symfony	symfony	—	—
symfony	symfony	—	—
symfony	symfony	—	—
symfony	symfony	>= 6.1.0 < 6.4.41	6.4.41
symfony	symfony	>= 7.0.0 < 7.4.13	7.4.13
symfony	symfony	>= 8.0.0 < 8.0.13	8.0.13

CVSS provenance

nvdv3.16.1MEDIUMCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N

nvdv4.05.3MEDIUMCVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:P/VC:N/VI:N/VA:N/SC:L/SI:L/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X

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