6.5

CVE-2020-29450: atlassian confluence_data_center

Modified
Published 19-01-2021Last modified 16-09-2024

Vulnerability summary

CVE-2020-29450 is a medium (CVSS 6.5) vulnerability in atlassian confluence_data_center. EPSS estimates a 2.24% chance of exploitation in the next 30 days, higher than 82.8% of scored vulnerabilities.

Priority
Routine

Not severe (CVSS 6.5, network access); no exploitation reported by the 5 checked sources

Source freshness unavailable

How is this decided?
CVSS score
6.5/10
010
Medium · v3.1 (NVD)
EPSS score
2.24%
0%100%
Low · +0.03 pp in 30 days
KEVNot listedNot listed by any tracked catalog.
RansomwareNot flaggedNo ransomware use recorded.
Public exploits0No public exploits recorded

Timeline

  1. 19-01-2021
    PublishedVulnerability first disclosed.
  2. 16-09-2024
    Last modifiedVulnerability information updated.

Description

Affected versions of Atlassian Confluence Server and Data Center allow remote attackers to impact the application's availability via a Denial of Service (DoS) vulnerability in the avatar upload feature. The affected versions are before version 7.2.0.

CVSS metrics

2 scores · 1 source · 2 versions

EPSS trend

Probability

2.24%

Chance of exploitation in the next 30 days

Percentile

83%

Versus all other CVEs

30-day change

Increase +0.03 pp

From 2.21% 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, low-privilege account, no user interaction (CVSS vector). Other conditions: not stated in public data.

Atlassian2 products

1 vendor · 2 products

References

1 links