CVE-2020-10935 json
Zulip Server before 2.1.3 allows XSS via a Markdown link, with resultant account takeover.
published 2020-04-20 6 y ago modified 2026-06-17 4 mo ago also EUVD-2020-3341
- cvss
- 5.4
- version 3.1, NVD
- cisa kev
- Not listed
- not in CISA's catalog
- epss
- 0.7%
- EPSS 0.7% chance of exploitation in 30 days, percentile 54%
- public exploits
- 0
- none known
Summary
Zulip Server before 2.1.3 allows XSS via a Markdown link, with resultant account takeover.
Patch / fix
- zulip zulip_server 2.1.3
Exploit prediction
0.72% chance of exploitation in the next 30 days, higher than 54% of all scored CVEs (FIRST EPSS, 2026-11-08).
Exploits and checks
- coresecurity.com https://www.coresecurity.com/advisories/zulip-account-takeover-stored-xss referenced PoC, tagged "exploit" by a source, unverified
CVSS scores
| assigned by | version | score | vector |
|---|---|---|---|
| NVD | 3.1 | 5.4 | CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N |
| NVD | 2.0 | 3.5 | AV:N/AC:M/Au:S/C:N/I:P/A:N |
Classification
- Weakness
-
- CWE-79 Improper Neutralization of Input During Web Page Generation
References
-
coresecurity.com
/advisories/zulip-account-takeover-stored-xss
exploit, third-party-advisory
-
blog.zulip.org
/2020/04/01/zulip-server-2-1-3-security-release/
vendor-advisory
Sources
- CVE List CVE-2020-10935
- NVD CVE-2020-10935
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