Detections
Analytics

SCA: security update for symfony/html-sanitizer, symfony/symfony (GHSA-hhg7-c65m-h7ff)

low Tenable Self-Hosted Container Security Plugin ID 442435

Description

There are packages installed that are affected by a vulnerability referenced in the following CVE:

 - Symfony is a PHP framework for web and console applications and a set of reusable PHP components. From
 6.1.0-BETA1 until 6.4.40, 7.4.12, and 8.0.12, UrlAttributeSanitizer::getSupportedAttributes() omits URL-
 valued attributes including action, formaction, poster, and cite, so configurations that admit those
 attributes can leave javascript: URIs unsanitized and enable XSS when the resulting HTML is rendered or a
 victim submits a form or clicks a button. This issue is fixed in versions 6.4.40, 7.4.12, and 8.0.12.
 (CVE-2026-45753)

Solution

Update the symfony/html-sanitizer library and its related packages to version 6.4.40 or later.

See Also

https://github.com/advisories/GHSA-hhg7-c65m-h7ff

Plugin Details

Severity: Low

ID: 442435

Version: Revision 1.4

Type: Local

Family: SCA Checks

Published: 5/28/2026

Updated: 7/16/2026

Supported Sensors: Tenable Cloud Security, Tenable Self-Hosted Container Security

Risk Information

VPR

Risk Factor: Low

Score: 2.3

Percentile: 9.61

Vendor

Vendor Severity: Low

CVSS v2

Risk Factor: Medium

Base Score: 6.4

Temporal Score: 4.7

Vector: CVSS2#AV:N/AC:L/Au:N/C:P/I:P/A:N

CVSS Score Source: CVE-2026-45753

CVSS v3

Risk Factor: Medium

Base Score: 6.1

Temporal Score: 5.3

Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N

Temporal Vector: CVSS:3.0/E:U/RL:O/RC:C

CVSS v4

Risk Factor: Low

Base Score: 2.1

Threat Score: 0.5

Threat Vector: CVSS:4.0/E:U

Vector: CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:A/VC:N/VI:N/VA:N/SC:L/SI:L/SA:N

Vulnerability Information

Exploit Ease: No known exploits are available

Patch Publication Date: 5/28/2026

Vulnerability Publication Date: 5/28/2026

Reference Information

CVE: CVE-2026-45753