What is CVE-2019-20102?

CVE-2019-20102 is a medium-severity vulnerability in Atlassian Confluence Server, classified under Cross-site Scripting. CVSS score: 6.1/10. Published 2020-04-22.

How severe is CVE-2019-20102?

Medium severity. CVSS v3 base score is 6.1 out of 10.

XSS in Atlassian Confluence Server

CVE-2019-20102

The attachment-uploading feature in Atlassian Confluence Server from version 6.14.0 through version 6.14.3, and version 6.15.0 before version 6.15.5 allows remote attackers to achieve stored cross-site- scripting (SXSS) via a malicious attachment with a modified `mimeType` parameter.

Vulnerability class: XSS (Cross-Site Scripting)

EPSS: 0.011 (61.8th 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

Atlassian Confluence Server — versions 6.14.0, unspecified, 6.15.0
Atlassian Confluence_server

Weakness classification (CWE)

CWE-79 — Cross-site Scripting

References

security@atlassian.com (Permissions Required, x_refsource_MISC)

Frequently asked questions

What is CVE-2019-20102?: CVE-2019-20102 is a medium-severity vulnerability in Atlassian Confluence Server, classified under Cross-site Scripting. CVSS score: 6.1/10. Published 2020-04-22.
How severe is CVE-2019-20102?: Medium severity. CVSS v3 base score is 6.1 out of 10.