CVE-2018-20239
Application Links before version 5.0.11, from version 5.1.0 before 5.2.10, from version 5.3.0 before 5.3.6, from version 5.4.0 before…
- 5.4MediumCVSS base score
- 3.3%Exploitation in 30 daysEPSS · top 11% of all CVEs
- NoKnown exploitednot in CISA's KEV catalog
- NonePublic exploitsnone known yet
Description
Application Links before version 5.0.11, from version 5.1.0 before 5.2.10, from version 5.3.0 before 5.3.6, from version 5.4.0 before 5.4.12, and from version 6.0.0 before 6.0.4 allows remote attackers to inject arbitrary HTML or JavaScript via a cross site scripting (XSS) vulnerability in the applinkStartingUrl parameter. The product is used as a plugin in various Atlassian products where the following are affected: Confluence before version 6.15.2, Crucible before version 4.7.0, Crowd before version 3.4.3, Fisheye before version 4.7.0, Jira before version 7.13.3 and 8.x before 8.1.0.
Timeline
ID reserved
By atlassian
- 4 months later
· 4 months later
Published
- 5 years later
· 5 years later
Record updated
Changes after publication (a new score, a public exploit, EPSS crossing 1, 10 or 50 %, leaving KEV) are kept since November 2026; earlier ones are not known.
Scores
| Scored by | CVSS | Score | Vector |
|---|---|---|---|
| NVDNVD · Modified | 3.1 | Medium5.4 | CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N |
- EPSS (exploitation in 30 days)
- 3.3% · top 11% of all CVEs (9 Nov 2026)
The list uses the assigner's score when there is one, then CISA's, then NVD's: Medium 5.4.
Affected products
Atlassian · Atlassian Application Links
- affected unspecified – < 5.0.11
- affected 5.1.0 – < unspecified
- affected unspecified – < 5.2.10
- affected 5.3.0 – < unspecified
- affected unspecified – < 5.3.6
- affected 5.4.0 – < unspecified
- affected unspecified – < 5.4.12
- affected 6.0.0 – < unspecified
- affected unspecified – < 6.0.4
References
6
- https://ecosystem.atlassian.net/browse/APL-1373 (opens in a new tab)x_refsource_MISCx_transferred
- https://jira.atlassian.com/browse/CRUC-8379 (opens in a new tab)x_refsource_MISCx_transferred
- https://jira.atlassian.com/browse/FE-7161 (opens in a new tab)x_refsource_MISCx_transferred
- https://jira.atlassian.com/browse/CONFSERVER-58208 (opens in a new tab)x_refsource_MISCx_transferred
- https://jira.atlassian.com/browse/CWD-5362 (opens in a new tab)x_refsource_MISCx_transferred
- https://jira.atlassian.com/browse/JRASERVER-68855 (opens in a new tab)x_refsource_MISCx_transferred
Sources
The same CVE in the primary databases and aggregators, to check against.
- CVE.org record (opens in a new tab)
- CVE List JSON (GitHub) (opens in a new tab)
- NVD (opens in a new tab)
- FIRST EPSS (opens in a new tab)
- EUVD EUVD-2018-12805 (opens in a new tab)
- OSV.dev (opens in a new tab)
- GitHub Advisories (opens in a new tab)
- CIRCL Vulnerability-Lookup (opens in a new tab)
Badge for a README or a ticket
[](https://cveledger.app/cve/CVE-2018-20239)Record last updated .