CVE-2019-20102

mediumpriority · track · 24EPSS 0.011 · 65 %ileEUUS

grimoire priorityP3 · Track

Exploitable?

—

no known exploitation

Likely / severe?

1.08% (65th) EPSS

CVSS 4.3 · medium

Is it mine?

6 products

Check your exposure

Who says so?

3 sources

cnnvd · enisa_euvd · nvd

EPSS · scored 2026-10-27

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.

cvss

Technical severity, 0–10. One row per scoring source.

6.1

010

base score 0–10 · higher = more severe · hover a vector to decode

v2.04.3mediumAV:N/AC:M/Au:N/C:N/I:P/A:Nprimary · NVD / NIST USexploitability 8.6 · impact 2.9

v3.16.1mediumCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:Nprimary · NVD / NIST USexploitability 2.8 · impact 2.7

v3.15.6mediumCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N/E:Usecondary · CVSS-BT (t0sche)

weaknesses

The CWE weakness classes this flaw belongs to.

CWE-79USprimary

affected products (6)

Products and version ranges known to be affected.

Atlassian Confluence Server≤ unspecified ≤6.14.3enisa_euvdEU
Atlassian Confluence Server6.14.0 → unspecifiedenisa_euvdEU
Atlassian Confluence Server6.15.0 → unspecifiedenisa_euvdEU
Atlassian Confluence Serverunspecified → 6.15.5enisa_euvdEU
atlassian confluence server6.14.0 → 6.14.3nvdUScpe:2.3:a:atlassian:confluence_server:*:*:*:*:*:*:*:*
atlassian confluence server6.15.0 → 6.15.5nvdUScpe:2.3:a:atlassian:confluence_server:*:*:*:*:*:*:*:*

also known as (3)

Other names and identifiers for this entity.

sources

Which sources assert this record, and when.

cnnvd enisa_euvd nvd NVD CVE.org MITRE

published 2020-04-22modified 2026-06-17

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+53004 more

references (4)

External citations — patches, advisories, analysis.

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