6.1

CVE-2019-20102: atlassian confluence_server

Modified
Published 22-04-2020Last modified 16-09-2024

Vulnerability summary

CVE-2019-20102 is a medium (CVSS 6.1) vulnerability in atlassian confluence_server. EPSS estimates a 1.08% chance of exploitation in the next 30 days, higher than 65.2% of scored vulnerabilities.

Priority
Routine

Not severe (CVSS 6.1, network access); no exploitation reported by the 5 checked sources

Source freshness unavailable

How is this decided?
CVSS score
6.1/10
010
Medium · v3.1 (NVD)
EPSS score
1.08%
0%100%
Low · 0.00 pp in 30 days
KEVNot listedNot listed by any tracked catalog.
RansomwareNot flaggedNo ransomware use recorded.
Public exploits0No public exploits recorded

Timeline

  1. 22-04-2020
    PublishedVulnerability first disclosed.
  2. 16-09-2024
    Last modifiedVulnerability information updated.

Description

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 metrics

2 scores · 1 source · 2 versions

EPSS trend

Probability

1.08%

Chance of exploitation in the next 30 days

Percentile

65%

Versus all other CVEs

30-day change

No change 0.00 pp

From 1.08% on 04-10-2026

04-10-202603-11-2026

Known exploited

Compare KEV catalogs
CISA KEV

Not in the CISA KEV catalog.

ENISA CNW

Not in the ENISA CNW catalog.

CIRCL

Not in the CIRCL catalog.

Public exploits

0 found

No public exploits indexed.

Weaknesses

CWE · root cause

Affected systems

Version check

Known conditions: network-reachable, no authentication, user interaction (CVSS vector). Other conditions: not stated in public data.

Atlassian1 product
  • confluence_server≥ 6.14.0, < unspecified | ≥ unspecified, ≤ 6.14.3 | ≥ 6.15.0, < unspecified | ≥ unspecified, < 6.15.5 | ≥ 6.14.0, ≤ 6.14.3 | ≥ 6.15.0, < 6.15.5

1 vendor · 1 product

References

1 links