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Fencer Vulns
high 8.8

CVE-2021-39114 json

Affected versions of Atlassian Confluence Server and Data Center allow users with a valid account on a Confluence Data Center instance to e…

published 2022-04-05 4 y ago modified 2026-06-17 4 mo ago also EUVD-2021-25550

cvss
8.8
version 3.1, CNA
cisa kev
Not listed
not in CISA's catalog
epss
1.7%
EPSS 1.7% chance of exploitation in 30 days, percentile 77%
public exploits
0
none known

Summary

Affected versions of Atlassian Confluence Server and Data Center allow users with a valid account on a Confluence Data Center instance to execute arbitrary Java code or run arbitrary system commands by injecting an OGNL payload. The affected versions are before version 6.13.23, from version 6.14.0 before 7.4.11, from version 7.5.0 before 7.11.6, and from version 7.12.0 before 7.12.5.

Patch / fix

  • Atlassian Confluence Server 6.13.23, 7.4.11, 7.11.6, 7.12.5
  • Atlassian Confluence Data Center 6.13.23, 7.4.11, 7.11.6, 7.12.5
  • atlassian confluence_data_center 6.13.23, 7.4.11, 7.11.6, 7.12.5
  • atlassian confluence_server 6.13.23, 7.4.11, 7.11.6, 7.12.5

CISA SSVC

Exploitation
none
Automatable
no
Technical impact
total
Assessed
2 y ago

Exploit prediction

1.68% chance of exploitation in the next 30 days, higher than 77% of all scored CVEs (FIRST EPSS, 2026-11-08).

CVSS scores

assigned by version score vector
CISA ADP 3.1 8.8 CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
NVD 3.1 8.8 CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
CNA 3.1 8.8 CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
NVD 2.0 6.5 AV:N/AC:L/Au:S/C:P/I:P/A:P

Affected products

  • Atlassian Confluence Server
  • Atlassian Confluence Data Center
  • atlassian confluence_data_center
  • atlassian confluence_server

Classification

Weakness
  • CWE-94 Improper Control of Generation of Code

References

Sources

Fencer Vulns keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.