XSS in Etherpad
CVE-2021-34817
A Cross-Site Scripting (XSS) issue in the chat component of Etherpad 1.8.13 allows remote attackers to inject arbitrary JavaScript or HTML by importing a crafted pad.
Vulnerability class: XSS (Cross-Site Scripting)
EPSS: 0.013 (69.0th percentile) — read the EPSS interpretation.
CVSS v3 metric
CVSS v3 base score 6.1 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N.
Affected products
- Etherpad — versions 1.8.13
- N/a — versions n/a
Weakness classification (CWE)
References
- cve@mitre.org (Patch, x_refsource_MISC, Vendor Advisory)
- cve@mitre.org (Patch, Third Party Advisory, x_refsource_MISC, Release Notes)
- cve@mitre.org (Third Party Advisory, x_refsource_MISC)
- cve@mitre.org (Exploit, Patch, Third Party Advisory, x_refsource_MISC)
Frequently asked questions
- What is CVE-2021-34817?
- CVE-2021-34817 is a medium-severity vulnerability in Etherpad, classified under Cross-site Scripting. CVSS score: 6.1/10. Published 2021-07-19.
- How severe is CVE-2021-34817?
- Medium severity. CVSS v3 base score is 6.1 out of 10.