Cross-site Scripting in reveal.js (GHSA-6vwx-mwp8-fh44)

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.

Recommendation

Update the reveal.js package to the latest compatible version. Followings are version details:

• Affected version(s): <= 3.9.1
• Patched version(s): 3.9.2

References

• GHSA-6vwx-mwp8-fh44
• hackerone.com
• CVE-2020-8127
• CWE-79
• CAPEC-310
• OWASP 2021-A3
• OWASP 2021-A6

Related Issues

• Elliptic's verify function omits uniqueness validation - CVE-2024-48949
• Nuxt DevTools vulnerable to cross-site scripting (XSS) - CVE-2025-52662
• Strapi is vulnerable to Insufficient Session Expiration - CVE-2025-3930
• Regular Expression Denial of Service (ReDoS) in lodash - CVE-2020-28500

Tags:

npm

reveal.js