CVE-2020-26239

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Summary

CVECVE-2020-26239
StatePUBLIC
Assigner[email protected]
Source PriorityCVE Program / NVD first with legacy fallback
Published2020-11-23 19:15:00 UTC
Updated2020-12-03 13:43:00 UTC
DescriptionScratch Addons is a WebExtension that supports both Chrome and Firefox. Scratch Addons before version 1.3.2 is vulnerable to DOM-based XSS. If the victim visited a specific website, the More Links addon of the Scratch Addons extension used incorrect regular expression which caused the HTML-escaped values to be unescaped, leading to XSS. Scratch Addons version 1.3.2 fixes the bug. The extension will be automatically updated by the browser. More Links addon can be disabled via the option of the extension.

Risk And Classification

Problem Types: CWE-79

NVD Known Affected Configurations (CPE 2.3)

TypeVendorProductVersionUpdateEditionLanguage
Application Scratchaddons Scratch Addons All All All All
Application Scratchaddons Scratch Addons All All All All

References

ReferenceSourceLinkTags
SECURITY: Fix DOM XSS in More Links addon · ScratchAddons/ScratchAddons@b9a52d6 · GitHub MISC github.com Patch, Third Party Advisory
Release Scratch Addons v1.3.2 · ScratchAddons/ScratchAddons · GitHub MISC github.com Release Notes, Third Party Advisory
DOM-based Cross-Site Scripting · Advisory · ScratchAddons/ScratchAddons · GitHub CONFIRM github.com Patch, Third Party Advisory
ScratchAddons/userscript.js at a471893df403f86c9182970678175d4772a0690c · ScratchAddons/ScratchAddons · GitHub MISC github.com Third Party Advisory
CVE Program record CVE.ORG www.cve.org canonical
NVD vulnerability detail NVD nvd.nist.gov canonical, analysis

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