Detections
Analytics
SCA: security update for highlight.js (GHSA-vfrc-7r7c-w9mx)
high Tenable Cloud Security Plugin ID 419305
Description
There are packages installed that are affected by a vulnerability referenced in the following CVE:- Highlight.js is a syntax highlighter written in JavaScript. Highlight.js versions before 9.18.2 and 10.1.2
are vulnerable to Prototype Pollution. A malicious HTML code block can be crafted that will result in
prototype pollution of the base object's prototype during highlighting. If you allow users to insert
custom HTML code blocks into your page/app via parsing Markdown code blocks (or similar) and do not filter
the language names the user can provide you may be vulnerable. The pollution should just be harmless data
but this can cause problems for applications not expecting these properties to exist and can result in
strange behavior or application crashes, i.e. a potential DOS vector. If your website or application does
not render user provided data it should be unaffected. Versions 9.18.2 and 10.1.2 and newer include fixes
for this vulnerability. If you are using version 7 or 8 you are encouraged to upgrade to a newer release.
(CVE-2020-26237)
See Also
Plugin Details
Severity: High
ID: 419305
Version: Revision 1.3
Type: Local
Family: SCA Checks
Published: 1/23/2025
Updated: 1/28/2026
Supported Sensors: Tenable Cloud Security, Tenable Self-Hosted Container Security
Risk Information
VPR
Risk Factor: Medium
Score: 4.8
Percentile: 56.9
Vendor
Vendor Severity: Medium
CVSS v2
Risk Factor: Medium
Base Score: 4.9
Temporal Score: 3.6
Vector: CVSS2#AV:N/AC:M/Au:S/C:N/I:P/A:P
CVSS Score Source: CVE-2020-26237
CVSS v3
Risk Factor: High
Base Score: 8.7
Temporal Score: 7.6
Vector: CVSS:3.0/AV:N/AC:L/PR:L/UI:R/S:C/C:N/I:H/A:H
Temporal Vector: CVSS:3.0/E:U/RL:O/RC:C
Vulnerability Information
Exploit Ease: No known exploits are available
Patch Publication Date: 11/24/2020
Vulnerability Publication Date: 11/24/2020
Reference Information
CVE: CVE-2020-26237
cwe: CWE-471