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No exploitation reportedFix available

CVE-2021-32718

No exploitation reported by the sources we read.

  • Published2021-06-28
  • Fixed in3.8.17
  • WeaknessCWE-79 · CWE-80

Am I affected?

With a domain, we read the version its public headers and pages expose. A distribution build can carry the fix under an older number.

Description

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.

Timeline

dates in UTC
  1. 2021-06-2815:15CVE publishedNVD

Observed activity

isMalicious corpus · updated 2026-10-23 18:48 UTC
Indicators tagged with this CVE, per day0 indicators over 7 days
Block these indicators
  • Firewall list (EDL, text): https://api.ismalicious.com/edl/cve/CVE-2021-32718?format=txt
  • CSV export: https://api.ismalicious.com/edl/cve/CVE-2021-32718?format=csv
  • TAXII collection of exploited CVEs
  • The EDL and CSV take an API key on the Pro plan.

Versions per branch

NVD · OSV
Vmware rabbitmq
BranchAffectedFixed in
3.8< 3.8.173.8.17

as publishedRanges as NVD and OSV publish them; a distribution’s build can be fixed under an older number.

Distribution builds and vendor advisories

Packages from OSV.dev and products from the vendors' CSAF advisories.

version not verifiedVersions not verified: read as OSV.dev and the vendors publish them, not checked against each vendor's release list.

Vendor advisories

  • CVE-2021-32718 Red Hat Product Security6 products fixed · 3 known affected

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

    rabbitmq-server.src as a component of Red Hat OpenStack Platform 10 (Newton) · rabbitmq-server as a component of Red Hat OpenStack Platform 13 (Queens) · rabbitmq-server.src as a component of Red Hat OpenStack Platform 13 (Queens)

  • RHSA-2022:8867 Red Hat Product Security3 products fixed

    Red Hat Security Advisory: Red Hat OpenStack Platform 16.1.9 (rabbitmq-server) security update

  • RHSA-2022:8851 Red Hat Product Security3 products fixed

    Red Hat Security Advisory: Red Hat OpenStack Platform 16.2.4 (rabbitmq-server) security update

Full record on NVD

Fix

  1. Update Vmware rabbitmq to 3.8.17
  2. Vendor fix Red Hat Product Security RHSA-2022:8867 · 3 productsFor details on how to apply this update, which includes the changes described in this advisory, refer to: https://access.redhat.com/articles/11258
  3. No fix planned, says the vendor Red Hat Product Security CVE-2021-32718 · 3 productsOut of support scope

Advisories and patches

Detection

Nuclei template
none so far
ProjectDiscovery
Exploit-DB
no entry
Exploit-DB
Proof-of-concept repositories
none listed
PoC-in-GitHub

Sources

  • CNACVSS 3.13.1read 2026-10-23
  • NVDCVSS 3.15.4read 2026-10-23
  • NVDCVSS 2.03.5read 2026-10-23
  • CNAweakness (CWE)CWE-80read 2026-10-23
  • NVDweakness (CWE)CWE-79read 2026-10-23
  • FIRST EPSSEPSS score1.4 %2026-10-22
  • OSVaffected packages—

Technical details

CVSS v3 Vector
CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N
Published
2021-06-28
Last Modified
2026-06-17
NVD status
Modified

Frequently asked questions

What is CVE-2021-32718?

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.

Is CVE-2021-32718 actively exploited?

Active exploitation of CVE-2021-32718 has not been confirmed. Its EPSS score was 1.4% on 2026-10-22, the estimated probability of exploitation in the next 30 days.

What is the CVSS score for CVE-2021-32718?

CVE-2021-32718 has a CVSS v3 base score of 5.4 (MEDIUM severity), with vector string CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N.

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