CVE-2021-32718: low-severity vulnerability in rabbitmq-server
Improper Neutralization of Script-Related HTML Tags in a Web Page (Basic XSS) in RabbitMQ management UI
Published · Updated
E-mail alert when it lands in KEV, gets a public PoC or its score goes up.
8Vexday Risk Score
No sign of exploitation. No public exploitation artifact known so far.
ssvc Trackcvss 3.1epss 1.4%
RabbitMQ is a multi-protocol messaging broker. In rabbitmq-server prior to version 3.8.17, a new user being added via management UI could lead to the user's bane being rendered in a confirmation message without proper `<script>` tag sanitization, potentially allowing for JavaScript code execution in the context of the page. In order for this to occur, the user must be signed in and have elevated permissions (other user management). The vulnerability is patched in RabbitMQ 3.8.17. As a workaround, disable `rabbitmq_management` plugin and use CLI tools for management operations and Prometheus and Grafana for metrics and monitoring.
CVSS:3.1/AV:N/AC:H/PR:H/UI:R/S:U/C:L/I:L/A:N
Affected products
rabbitmq · rabbitmq-serverRelated CVEs — rabbitmq-server
In the same product, most dangerous first.
CVE-2026-57219HIGHRabbitMQ: Unauthenticated disclosure of OAuth client credentials via an HTTP API endpoint with certain less common OAuth 2 configurationsEPSS 2.8%CVE-2021-32719LOWImproper Neutralization of Script-Related HTML Tags in a Web Page (Basic XSS) in RabbitMQ federation management pluginEPSS 1.4%CVE-2023-46118MEDIUMDenial of Service by publishing large messages over the HTTP APIEPSS 1.3%CVE-2026-67414MEDIUMRabbitMQ AMQP 1.0 parser: amplification memory-exhaustion DoS via zero-width array aggregationEPSS 0.6%CVE-2026-57211MEDIUMRabbitMQ: UNC SSRF affecting the management UI on WindowsEPSS 0.6%CVE-2026-67416MEDIUMRabbitMQ: AMQP 1.0 symbolic body descriptor prefix collisions bypass validationEPSS 0.6%