High severity · published Jul 16, 2024
CVE-2024-21686
This High severity Stored XSS vulnerability was introduced in versions 7.13 of Confluence Data Center and Server
8.7
CVSS
0.9%
EPSS
No
On KEV
Description
This High severity Stored XSS vulnerability was introduced in versions 7.13 of Confluence Data Center and Server.
This Stored XSS vulnerability, with a CVSS Score of 7.3, allows an authenticated attacker to execute arbitrary HTML or JavaScript code on a victims browser which has high impact to confidentiality, high impact to integrity, no impact to availability, and requires user interaction.
Atlassian recommends that Confluence Data Center and Server customers upgrade to latest version, if you are unable to do so, upgrade your instance to one of the specified supported fixed versions listed on this CVE
See the release notes (https://confluence.atlassian.com/doc/confluence-release-notes-327.html). You can download the latest version of Confluence Data Center and Server from the download center (https://www.atlassian.com/software/confluence/download-archives).
This vulnerability was reported via our Bug Bounty program.
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:H/I:H/A:N
Attack vector
Network
Complexity
Low
Privileges
Low
User interaction
Required
Confidentiality
High
Integrity
High
Availability
None
Scope
Changed
Exploitation
Is it being used?
Exploit prediction (EPSS)0.9% · higher than 59% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
CO
Confluence · Atlassian
before 7.19.22; 7.20.0 before 8.5.9; 8.6.0 before 8.9.1 · source: NVD
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2024-21686
CVE.org
https://www.cve.org/CVERecord?id=CVE-2024-21686
Vendor Advisory
https://confluence.atlassian.com/pages/viewpage.action?pageId=1417150917
Issue Tracking
https://jira.atlassian.com/browse/CONFSERVER-96134
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