6.5

CVE-2020-4027: atlassian confluence

Modified
Published 01-07-2020Last modified 17-09-2024

Vulnerability summary

CVE-2020-4027 is a medium (CVSS 6.5) vulnerability in atlassian confluence. EPSS estimates a 1.52% chance of exploitation in the next 30 days, higher than 74.5% of scored vulnerabilities.

Priority
Routine

Not severe (CVSS 4.7, network access); no exploitation reported by the 5 checked sources

Source freshness unavailable

How is this decided?
CVSS score
6.5/10
010
Medium · v2.0 (NVD)
EPSS score
1.52%
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. 01-07-2020
    PublishedVulnerability first disclosed.
  2. 17-09-2024
    Last modifiedVulnerability information updated.

Description

Affected versions of Atlassian Confluence Server and Data Center allowed remote attackers with system administration permissions to bypass velocity template injection mitigations via an injection vulnerability in custom user macros. The affected versions are before version 7.4.5, and from version 7.5.0 before 7.5.1.

CVSS metrics

2 scores · 1 source · 2 versions

EPSS trend

Probability

1.52%

Chance of exploitation in the next 30 days

Percentile

75%

Versus all other CVEs

30-day change

No change 0.00 pp

From 1.52% 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, administrative account, no user interaction (CVSS vector). Other conditions: not stated in public data.

Atlassian3 products

1 vendor · 3 products

References

1 links