CVE-2024-21686 Cross-site scripting in Confluence Data Center
An authenticated attacker can inject malicious scripts into Confluence pages, allowing arbitrary code execution in victims' browsers.
- Exploited in the wild
- Not known
- Login needed
- Any signed-in user
- Attackable
- Over the internet
- Victim action needed
- A user has to click or open something
- Fix
- None listed
What is CVE-2024-21686?
CVE-2024-21686 is a high-severity cross-site scripting vulnerability in Atlassian Confluence Data Center, published on 16 Jul 2024. Any signed-in user can exploit it over the network, and only if a user opens a file or follows a link.
Official 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.
Weakness: CWE-79
Which versions are affected by CVE-2024-21686?
It affects 2 products.
Products include Atlassian Confluence Data Center, Atlassian Confluence Server.
How do I fix CVE-2024-21686?
No fix has been published for CVE-2024-21686 yet. Limit exposure of the affected software until one is available.
Escape output for the context it lands in and set a strict Content Security Policy. Upgrading the affected component is the real fix. More about Cross-site scripting.
Is CVE-2024-21686 being exploited?
There is no known exploitation of CVE-2024-21686 in the wild and no public exploit code.
Other vulnerabilities in Atlassian Confluence Data Center
- CVE-2023-22527 Atlassian Confluence Data Center and Server Template Injection
- CVE-2023-22518 Atlassian Confluence Data Center and Server Improper Authorization
- CVE-2023-22515 Atlassian Confluence Data Center and Server Broken Access Control
- CVE-2022-26134 Atlassian Confluence Server and Data Center Remote Code Execution
- CVE-2021-26084 Atlassian Confluence Server and Data Center Object-Graph Navigation Language (OGNL) Injection
Sources
Also known as GHSA-7x4x-g7pr-2356.