Detections
Analytics

SCA: security update for dompurify (GHSA-c2j3-45gr-mqc4)

medium Tenable Cloud Security Plugin ID 445098

Description

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

 - DOMPurify before 3.4.12 fails to execute afterSanitizeElements hook for custom elements allowed via
 CUSTOM_ELEMENT_HANDLING.tagNameCheck, allowing attributes to bypass application security policies.
 Attackers can preserve sensitive attributes on custom elements that later re-inject them into innerHTML
 sinks, creating second-order XSS gadgets. (CVE-2026-66010)

Solution

Update the dompurify library and its related packages to version 3.4.12 or later.

See Also

https://github.com/advisories/GHSA-c2j3-45gr-mqc4

Plugin Details

Severity: Medium

ID: 445098

Version: Revision 1.2

Type: Local

Family: SCA Checks

Published: 7/22/2026

Updated: 10/3/2026

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

Risk Information

VPR

Risk Factor: Low

Score: 2.3

Percentile: 9.7

Vendor

Vendor Severity: Low

CVSS v2

Risk Factor: Medium

Base Score: 6.4

Temporal Score: 5

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

CVSS Score Source: CVE-2026-66010

CVSS v3

Risk Factor: Medium

Base Score: 6.1

Temporal Score: 5.5

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:P/RL:O/RC:C

CVSS v4

Risk Factor: Medium

Base Score: 5.1

Threat Score: 2

Threat Vector: CVSS:4.0/E:P

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

Vulnerability Information

Exploit Available: true

Exploit Ease: Exploits are available

Patch Publication Date: 7/21/2026

Vulnerability Publication Date: 7/21/2026

Reference Information

CVE: CVE-2026-66010