SOC status:Duty analyst on shift

UK Cyber Defence
VulnerabilityModified

CVE-2020-29450

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.

MEDIUM 6.5EPSS 2.24%

Does this matter?

Lower severity and a low EPSS score (2.24%). Track it; it rarely justifies an emergency change on its own.

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 3.1
6.5 MEDIUMCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
EPSS
2.24% probability · 83th percentile
Public exploits
None in Exploit-DB
CISA KEV
Not listed
Weakness
CWE-434
Affected
atlassian/confluence data center · atlassian/confluence server
Source
security@atlassian.com
EPSS trend
0%3%5%26 October 2026: 2.24%26 October 202626 October 2026

EPSS 2.2% since 26 October 2026; no change recorded yet. Points are recorded when the score first appears and whenever it moves by a percentage point or more.

References

Source: NVD record, EPSS from FIRST.org, KEV from CISA, exploits from Exploit-DB. Refreshed daily. Download this record as JSON.