XSS in Zulip Server

CVE-2020-10935

Zulip Server before 2.1.3 allows XSS via a Markdown link, with resultant account takeover.

Vulnerability class: XSS (Cross-Site Scripting)

EPSS: 0.007 (50.3th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 5.4 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N.

Affected products

Zulip Zulip_server
N/a — versions n/a

Weakness classification (CWE)

CWE-79 — Cross-site Scripting

References

cve@mitre.org (x_refsource_CONFIRM, Vendor Advisory)
cve@mitre.org (Exploit, Third Party Advisory, x_refsource_MISC)

Frequently asked questions

What is CVE-2020-10935?: CVE-2020-10935 is a medium-severity vulnerability in Zulip Server, classified under Cross-site Scripting. CVSS score: 5.4/10. Published 2020-04-20.
How severe is CVE-2020-10935?: Medium severity. CVSS v3 base score is 5.4 out of 10.