CVE-2020-4026 json
The CustomAppsRestResource list resource in Atlassian Navigator Links before version 3.3.23, from version 4.0.0 before version 4.3.7, from…
published 6y ago modified 4mo ago also EUVD-2020-25291
- cvss
- 4.3
- version 3.1, NVD
- cisa kev
- Not listed
- not in CISA's catalog
- epss
- 0.8%
- EPSS 0.8% chance of exploitation in 30 days, percentile 55%
- public exploits
- 0
- none known
Summary
The CustomAppsRestResource list resource in Atlassian Navigator Links before version 3.3.23, from version 4.0.0 before version 4.3.7, from version 5.0.0 before 5.0.1, and from version 5.1.0 before 5.1.1 allows remote attackers to enumerate all linked applications, including those that are restricted or otherwise hidden, through an incorrect authorization check.
Patch / fix
- Atlassian Navigator Links 3.2.23, 4.3.7, 5.0.1, 5.1.1
- Atlassian Crucible 4.8.2
- Atlassian Fisheye 4.8.2
Is CVE-2020-4026 in your stack? Fencer shows which of your repositories are affected as soon as an advisory lands, and opens the fix as a pull request.
Check with FencerExploit prediction
0.75% chance of exploitation in the next 30 days, higher than 55% of all scored CVEs (FIRST EPSS, 2026-11-09).
CVSS scores
| assigned by | version | score | vector |
|---|---|---|---|
| NVD | 3.1 | 4.3 | CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N |
| NVD | 2.0 | 4.0 | AV:N/AC:L/Au:S/C:P/I:N/A:N |
Affected products
- Atlassian Navigator Links
- Atlassian Crucible
- Atlassian Fisheye
Classification
- Weakness
-
- CWE-863 Incorrect Authorization
References
-
jira.atlassian.com
/browse/FE-7299
vendor-advisory
-
jira.atlassian.com
/browse/CRUC-8485
vendor-advisory
Sources
- CVE List CVE-2020-4026
- NVD CVE-2020-4026
Fencer Intel 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.