CVE-2026-52760 Apache ActiveMQ, Apache ActiveMQ Web Console: Stored XSS via Unescaped values in ActiveMQ Web Console
An authenticated attacker can inject malicious scripts via JMS message IDs that execute in an administrator's browser when browsing queues in the ActiveMQ Web Console.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Over the internet
- Victim action needed
- A user has to click or open something
- Fix
- Available
What is CVE-2026-52760?
CVE-2026-52760 is a medium-severity cross-site scripting vulnerability in Apache Activemq, published on 30 Jun 2026. An attacker can exploit it over the internet without logging in, and only if a user opens a file or follows a link.
Official description
Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') vulnerability in Apache ActiveMQ, Apache ActiveMQ Web Console.
The browse page in the web console renders a message Id directly without sanitization. This allows an authenticated producer to send a message with a JMS message ID that has been crafted to contain HTML/JavaScript such that when an administrator browses the queue in the Web Console, the payload executes in their browser. This issue affects Apache ActiveMQ: before 5.19.8, from 6.0.0 before 6.2.7; Apache ActiveMQ Web Console: before 5.19.8, from 6.0.0 before 6.2.7.
Users are recommended to upgrade to version 6.2.7 or 5.19.8, which fixes the issue.
Weakness: CWE-79
Which versions are affected by CVE-2026-52760?
1 open source package ship an affected version, including activemq. It affects 2 products.
| Package | Affected | Fixed in |
|---|---|---|
activemq Bitnami | All versions | 5.19.8, 6.2.7 |
Products include Apache Activemq, Apache Activemq Web.
How do I fix CVE-2026-52760?
Upgrade activemq to a fixed version for your release line: 5.19.8 or 6.2.7.
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-2026-52760 being exploited?
There is no known exploitation of CVE-2026-52760 in the wild and no public exploit code.
Other vulnerabilities in Apache Activemq
Sources
Also known as BIT-activemq-2026-52760, DEBIAN-CVE-2026-52760, GHSA-j548-68g5-9j7x, MINI-3f65-5r2c-9w6m, MINI-h9j5-5f76-ppww, MINI-r8pv-fcwm-q5hq and 2 more.