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Fencer Vulns
low 3.1

CVE-2021-32719 json

Improper Neutralization of Script-Related HTML Tags in a Web Page (Basic XSS) in RabbitMQ federation management plugin

published 2021-06-28 5 y ago modified 2026-09-08 2 mo ago also BIT-rabbitmq-2021-32719 , EUVD-2021-19505 , GHSA-5452-hxj4-773x

cvss
3.1
version 3.1, CNA
cisa kev
Not listed
not in CISA's catalog
epss
1.4%
EPSS 1.4% chance of exploitation in 30 days, percentile 72%
public exploits
0
none known

Summary

RabbitMQ is a multi-protocol messaging broker. In rabbitmq-server prior to version 3.8.18, when a federation link was displayed in the RabbitMQ management UI via the `rabbitmq_federation_management` plugin, its consumer tag was rendered without proper <script> tag sanitization. This potentially allows for JavaScript code execution in the context of the page. The user must be signed in and have elevated permissions (manage federation upstreams and policies) for this to occur. The vulnerability is patched in RabbitMQ 3.8.18. As a workaround, disable the `rabbitmq_federation_management` plugin and use [CLI tools](https://www.rabbitmq.com/cli.html) instead.

Patch / fix

  • bitnami rabbitmq 3.8.18
  • vmware rabbitmq 3.8.18
  • rabbitmq-server Debian 14, Debian 13, Debian 12 3.9.4-1

debian advisories DEBIAN-CVE-2021-32719

  • rabbitmq-server Ubuntu 20.04 LTS 3.8.3-0ubuntu0.2

ubuntu advisories UBUNTU-CVE-2021-32719

Ubuntu security data © Canonical Ltd., from https://github.com/canonical/ubuntu-security-notices via OSV; changed: normalised to fixed package versions per release. CC BY-SA 4.0

  • rabbitmq-server openstack 16.2 3.8.16-3.el8ost

red hat advisories RHSA-2022:8851

  • elixir115 SLE Module for Server Applications 15 SP6, openSUSE Leap 15.6 1.15.7-150300.7.5.1
  • erlang26 SLE Module for Server Applications 15 SP6, openSUSE Leap 15.6 26.2.1-150300.7.5.1
  • rabbitmq-server313 SLE Module for Server Applications 15 SP6, openSUSE Leap 15.6 3.13.1-150600.13.5.3
  • rabbitmq-server SLE Module for Server Applications 15 SP3 3.8.11-3.3.3
  • rabbitmq-server SLE Module for Server Applications 15 SP2 3.8.3-3.3.4

suse advisories SUSE-FU-2024:2078-1SUSE-SU-2021:3325-1SUSE-SU-2021:3254-1

  • rabbitmq-server openSUSE Leap 15.3 3.8.11-3.3.3
  • rabbitmq-server openSUSE Leap 15.2 3.8.3-lp152.2.3.1

opensuse advisories openSUSE-SU-2021:3325-1openSUSE-SU-2021:1334-1

  • rabbitmq-server Alpine 3.24, Alpine 3.23, Alpine 3.22 +2 more 3.9.1-r0

alpine advisories ALPINE-CVE-2021-32719

Alpine secdb © Alpine Linux, from https://secdb.alpinelinux.org via OSV; changed: normalised to fixed package versions per release. CC BY-SA 4.0

  • rabbitmq Arch Linux 3.8.19-1

arch linux advisories AVG-2109

Vendor advisories

What the vendors themselves say about their products: affected, fixed or not affected, and what to do.

red hat product security vex CVE-2021-32719 updated cvss 4.8

rabbitmq-server: improper neutralization of script-related HTML tags in a web page (basic XSS) in federation management plugin

  • Red Hat OpenStack Platform 10 (Newton) rabbitmq-server Red Hat OpenStack Platform 13 (Queens) rabbitmq-server
    affected: no fix planned “Out of support scope”
  • Red Hat OpenStack Platform 16.2 rabbitmq-server 3.8.16-3.el8ost
    fixed: vendor fix RHSA-2022:8851
  • Red Hat Ansible Tower 3 rabbitmq-server Red Hat OpenStack Platform 16.1 rabbitmq-server
    not affected: vulnerable code not present

Red Hat CSAF VEX © Red Hat, Inc., from https://security.access.redhat.com/data/csaf/v2/vex/; changed: reduced to product statuses and remediations. CC BY 4.0 · csaf

Exploit prediction

1.42% chance of exploitation in the next 30 days, higher than 72% of all scored CVEs (FIRST EPSS, 2026-11-08).

Exploits and checks

  • herolab.usd.de https://herolab.usd.de/security-advisories/usd-2021-0011/ referenced PoC, tagged "exploit" by a source, unverified

CVSS scores

assigned by version score vector
CNA 3.1 3.1 CVSS:3.1/AV:N/AC:H/PR:H/UI:R/S:U/C:L/I:L/A:N
NVD 3.1 4.8 CVSS:3.1/AV:N/AC:L/PR:H/UI:R/S:C/C:L/I:L/A:N
NVD 2.0 3.5 AV:N/AC:M/Au:S/C:N/I:P/A:N
OSV 3.1 4.8 CVSS:3.1/AV:N/AC:L/PR:H/UI:R/S:C/C:L/I:L/A:N

Affected packages

ecosystem package affected fixed in
bitnami rabbitmq
<3.8.18
3.8.18

Affected products

  • rabbitmq rabbitmq-server

Classification

Weakness
  • CWE-80 Improper Neutralization of Script-Related HTML Tags in a Web Page
  • CWE-79 Improper Neutralization of Input During Web Page Generation

References

Sources

Fencer Vulns keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.