XSS in Atlassian Application Links
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 5.4.12, 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.
Vulnerability class: XSS (Cross-Site Scripting)
Published · last modified .
CVSS v3 metric
CVSS v3 base score 5.4 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N.
EPSS exploit prediction
EPSS: 0.033 (88.5th percentile), scored .
Low probability of exploitation in the next 30 days, but still tracked. 88th percentile — 88.5% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.033 · newest: 0.033 · change: 0.000
Affected products
Weakness classification (CWE)
References
- ecosystem.atlassian.net/browse/APL-1373 (Issue Tracking, Vendor Advisory)
- jira.atlassian.com/browse/CRUC-8379 (Issue Tracking, Vendor Advisory)
- jira.atlassian.com/browse/FE-7161 (Issue Tracking, Vendor Advisory)
- jira.atlassian.com/browse/CONFSERVER-58208 (Issue Tracking, Vendor Advisory)
- jira.atlassian.com/browse/CWD-5362 (Issue Tracking, Vendor Advisory)
- jira.atlassian.com/browse/JRASERVER-68855 (Issue Tracking, Vendor Advisory)
Frequently asked questions
- What is CVE-2018-20239?
- CVE-2018-20239 is a medium-severity vulnerability in Atlassian Application Links, classified under Cross-site Scripting. CVSS score: 5.4/10. Published 2019-04-30.
- How severe is CVE-2018-20239?
- Medium severity. CVSS v3 base score is 5.4 out of 10.