TI-2020-06545 Aliases CVE-2020-8127 GHSA-6vwx-mwp8-fh44

Cross-site scripting in reveal.js

LOW 30CWE-79Published 2020-02-28 · Updated 2024-08-04

Key facts

Attack vector: Network
Privileges required: None
User interaction: Required
Attack complexity: Low
Impact type: Cross-site scripting
Confidentiality · integrity · availability: Low · Low · None
Fix status: Fixed

Attack profile from CVSS 3.1 · NVD. Fix status from CNA and GitHub. Impact type from CWE-79.

Summary

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

Why it matters now

EPSS 0.01197 68th percentileScored 2026-11-07

Public exploit Yes 1 exploit referenceTagged by NVD

Fix Fixed reveal.js (npm): 3.9.2

SSVC decision points

Not available: CISA has not published SSVC decision points for this record.

Affected products

Vendor	Product	Affected versions	Fixed in	Status	Source
—	reveal.js	Fixed version: 3.9.2	—	No fix listed	CNA
—	reveal.js (npm)	before 3.9.2	3.9.2	Patch available	GHSA-6vwx-mwp8-fh44

reveal.js Vendor— Affected Fixed version: 3.9.2 Fixed in — No fix listed CNA
reveal.js (npm) Vendor— Affected before 3.9.2 Fixed in 3.9.2 Patch available GHSA-6vwx-mwp8-fh44

CPE configurations NVD · 1

CPE	Versions	Role	Vendor
cpe:2.3:a:revealjs:reveal.js::::::node.js::*	up to 3.9.1	Vulnerable	Revealjs

cpe:2.3:a:revealjs:reveal.js:*:*:*:*:*:node.js:*:* Versions up to 3.9.1 Vulnerable ·Revealjs

Remediation

Fix · GHSA-6vwx-mwp8-fh44 reveal.js (npm) Fixed in 3.9.2 Advisory →

Timeline

2026-10-02 Threatist record created from CVE-2020-8127
2026-10-03 Alias added: GHSA-6vwx-mwp8-fh44

References

Exploit 1

https://hackerone.com/reports/691977

Advisory 1

https://nvd.nist.gov/vuln/detail/CVE-2020-8127

TI-2022-00685 Cross-site Scripting (XSS) - DOM in hakimel/reveal.js CVSS 3.1MEDIUM 6.1

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences