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CVE-2020-15138

Published: 7 August 2020

Prism is vulnerable to Cross-Site Scripting. The easing preview of the Previewers plugin has an XSS vulnerability that allows attackers to execute arbitrary code in Safari and Internet Explorer. This impacts all Safari and Internet Explorer users of Prism >=v1.1.0 that use the _Previewers_ plugin (>=v1.10.0) or the _Previewer: Easing_ plugin (v1.1.0 to v1.9.0). This problem is fixed in version 1.21.0. To workaround the issue without upgrading, disable the easing preview on all impacted code blocks. You need Prism v1.10.0 or newer to apply this workaround.

Priority

Medium

Cvss 3 Severity Score

7.5

Score breakdown

Status

Package Release Status
node-prismjs
Launchpad, Ubuntu, Debian
hirsute Not vulnerable
(1.11.0+dfsg-4)
impish Not vulnerable
(1.11.0+dfsg-4)
kinetic Not vulnerable
(1.11.0+dfsg-4)
bionic Does not exist

focal Needed

groovy Not vulnerable
(1.11.0+dfsg-4)
jammy Not vulnerable
(1.11.0+dfsg-4)
lunar Not vulnerable
(1.11.0+dfsg-4)
trusty Does not exist

upstream
Released (1.21.0)
xenial Does not exist

mantic Not vulnerable
(1.11.0+dfsg-4)

Severity score breakdown

Parameter Value
Base score 7.5
Attack vector Network
Attack complexity High
Privileges required None
User interaction Required
Scope Changed
Confidentiality High
Integrity impact Low
Availability impact Low
Vector CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:C/C:H/I:L/A:L