XSS in Atlassian Data Center
CVE-2021-26078
The number range searcher component in Jira Server and Jira Data Center before version 8.5.14, from version 8.6.0 before version 8.13.6, and from version 8.14.0 before version 8.16.1 allows remote attackers inject arbitrary HTML or JavaScript via a cross site scripting (XSS) vulnerability.
Vulnerability class: XSS (Cross-Site Scripting)
Published · last modified .
CVSS v3 metric
CVSS v3 base score 6.1 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N.
EPSS exploit prediction
EPSS: 0.040 (90.6th percentile), scored .
Low probability of exploitation in the next 30 days, but still tracked. 91st percentile — 90.6% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.040 · newest: 0.040 · change: 0.000
Affected products
- Atlassian Data Center
- Atlassian Jira
- Atlassian Jira Data Center — versions unspecified, 8.6.0, 8.14.0
- Atlassian Jira Server — versions unspecified, 8.6.0, 8.14.0
- Atlassian Jira Server
Weakness classification (CWE)
Public proof-of-concept exploits
References
- jira.atlassian.com/browse/JRASERVER-72392 (Patch, Vendor Advisory)
- packetstormsecurity.com/files/163289/Atlassian-Jira-Server-Data-Center-8.16.0-C… (Exploit, VDB Entry, Third Party Advisory)
Frequently asked questions
- What is CVE-2021-26078?
- CVE-2021-26078 is a medium-severity vulnerability in Atlassian Data Center, classified under Cross-site Scripting. CVSS score: 6.1/10. Published 2021-06-07.
- How severe is CVE-2021-26078?
- Medium severity. CVSS v3 base score is 6.1 out of 10.
- Is CVE-2021-26078 known to be exploited?
- 4 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.