CVE-2020-8127

PoC —

CVSS 3.1

6.1 medium

EPSS

1%p66

Published

Feb 28, 2020 (Feb 28, 2020)

Modified

Jun 17, 2026

Description

Insufficient validation in cross-origin communication (postMessage) in reveal.js version 3.9.1 and earlier allow attackers to perform cross-site scripting attacks.

Vendors: revealjs
Products: reveal.js
Weakness: CWE-79
Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N

NVD CVE.org GitHub PoCs EPSS (1.2%)

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