CVE-2020-12759

Home/CVE/Zulip Server before 2.1.5 allows reflected XSS via the Dropbox webhook.

CVE

Zulip Server before 2.1.5 allows reflected XSS via the Dropbox webhook.

MEDIUM · CVSS 6.1 EPSS 0.00359

Monitor

No active-exploitation, high-EPSS, or public-exploit signals - routine patching cadence

Sigma rules0 YARA rules0

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Weakness Classification

CWE-79Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')

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Affected Products & Versions

zulip server< 2.1.5

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Scoring & Timeline

6.1

MEDIUM · CVSS v3.1 · cve@mitre.org

View on NVD

Attack Vector

Network Adjacent Local Physical

Attack Complexity

Low High

Privileges Required

None Low High

User Interaction

None Required

Scope

Unchanged Changed

Confidentiality

None Low High

Integrity

None Low High

Availability

None Low High

Published to NVD21 Aug 2020 · 05:15 AM

CVSS VectorCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N

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References & Sources

Source URLs (vendor pages, mailing lists, write-ups). Exploit/PoC links are in their own section above to avoid duplication.

https://blog.zulip.com/2020/06/17/zulip-server-2-1-5-security-release/Release NotesVendor Advisory

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External lookups - second-class, for what we don’t hold ourselves

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NIST 800-53
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