Etherpad Lite Access Restriction Bypass

Description

node/hooks/express/apicalls.js in Etherpad Lite before v1.6.3 mishandles JSONP, which allows remote attackers to bypass intended access restrictions.

Recommendation

Update the ep_etherpad-lite package to the latest compatible version. Followings are version details:

• Affected version(s): < 1.6.3
• Patched version(s): 1.6.3

References

• GHSA-mvmv-rq2j-97p2
• CVE-2018-6835
• CWE-20
• CAPEC-310
• OWASP 2021-A3
• OWASP 2021-A6

Related Issues

• Twitter-Post-Fetcher vulnerable to Use of Web Link to Untrusted Target with window.opener Access - CVE-2018-25058
• Apache mod_jk Access Control Bypass - CVE-2018-11759
• validator.js has a URL validation bypass vulnerability in its isURL function - CVE-2025-56200
• vite allows server.fs.deny bypass via backslash on Windows - CVE-2025-62522

Tags:

npm

ep_etherpad-lite