CVE-2020-26237

Published: Nov 24, 2020 Last Modified: Nov 21, 2024 EU-VD ID: EUVD-2020-1472 Aliases: GHSA-vfrc-7r7c-w9mx
ExploitDB:
Other exploit source:
Google Dorks:
MEDIUM 5,8
Source: [email protected]
Attack Vector: network
Attack Complexity: high
Privileges Required: low
User Interaction: required
Scope: changed
Confidentiality: none
Integrity: high
Availability: none
MEDIUM 4,9
Source: [email protected]
Access Vector: network
Access Complexity: medium
Authentication: single
Confidentiality: none
Integrity: partial
Availability: partial

Description

AI Translation Available

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.

EPSS (Exploit Prediction Scoring System)

Trend Analysis

EPSS (Exploit Prediction Scoring System)

Prevede la probabilità di sfruttamento basata su intelligence sulle minacce e sulle caratteristiche della vulnerabilità.

EPSS Score
0,0060
Percentile
0,7th
Updated

EPSS Score Trend (Last 91 Days)

471

Modification of Assumed-Immutable Data (MAID)

Draft
Abstraction: Base Structure: Simple
Common Consequences
Security Scopes Affected:
Integrity
Potential Impacts:
Modify Application Data Unexpected State
Applicable Platforms
Technologies: Not Technology-Specific, Web Based
View CWE Details
Application

Mysql Enterprise Monitor by Oracle

Product Information
Vendor Oracle
Product Mysql Enterprise Monitor
Version Range Affected
To 8.0.30 (inclusive)
cpe:2.3:a:oracle:mysql_enterprise_monitor:*:*:*:*:*:*:*:*
Common Platform Enumeration - Standardized vulnerability identification
Application

Highlight.Js by Highlightjs

Product Information
Vendor Highlightjs
Product Highlight.Js
Version Range Affected
To 9.18.2 (exclusive)
cpe:2.3:a:highlightjs:highlight.js:*:*:*:*:*:node.js:*:*
Common Platform Enumeration - Standardized vulnerability identification
Operating System

Debian Linux by Debian

Product Information
Vendor Debian
Product Debian Linux
Version 9.0
cpe:2.3:o:debian:debian_linux:9.0:*:*:*:*:*:*:*
Common Platform Enumeration - Standardized vulnerability identification
Application

Highlight.Js by Highlightjs

Product Information
Vendor Highlightjs
Product Highlight.Js
Version Range Affected
From 10.1.0 (inclusive)
To 10.1.2 (exclusive)
cpe:2.3:a:highlightjs:highlight.js:*:*:*:*:*:node.js:*:*
Common Platform Enumeration - Standardized vulnerability identification
https://github.com/highlightjs/highlight.js/commit/7241013a…
Patch Third Party Advisory
https://github.com/highlightjs/highlight.js/commit/7241013ae011a585983e176ddc04…
https://github.com/highlightjs/highlight.js/pull/2636
Patch Third Party Advisory
https://github.com/highlightjs/highlight.js/pull/2636
https://github.com/highlightjs/highlight.js/security/adviso…
Mitigation Third Party Advisory
https://github.com/highlightjs/highlight.js/security/advisories/GHSA-vfrc-7r7c-…
https://lists.debian.org/debian-lts-announce/2020/12/msg000…
Mailing List Third Party Advisory
https://lists.debian.org/debian-lts-announce/2020/12/msg00041.html
https://www.npmjs.com/package/highlight.js
Third Party Advisory
https://www.npmjs.com/package/highlight.js
https://www.oracle.com/security-alerts/cpujul2022.html
Third Party Advisory
https://www.oracle.com/security-alerts/cpujul2022.html
https://github.com/highlightjs/highlight.js/commit/7241013a…
Patch Third Party Advisory
https://github.com/highlightjs/highlight.js/commit/7241013ae011a585983e176ddc04…
https://github.com/highlightjs/highlight.js/pull/2636
Patch Third Party Advisory
https://github.com/highlightjs/highlight.js/pull/2636
https://github.com/highlightjs/highlight.js/security/adviso…
Mitigation Third Party Advisory
https://github.com/highlightjs/highlight.js/security/advisories/GHSA-vfrc-7r7c-…
https://lists.debian.org/debian-lts-announce/2020/12/msg000…
Mailing List Third Party Advisory
https://lists.debian.org/debian-lts-announce/2020/12/msg00041.html
https://www.npmjs.com/package/highlight.js
Third Party Advisory
https://www.npmjs.com/package/highlight.js
https://www.oracle.com/security-alerts/cpujul2022.html
Third Party Advisory
https://www.oracle.com/security-alerts/cpujul2022.html