CVE-2026-57213

RabbitMQ: Stored XSS federation management plugin via unsanitized consumer_tag rendering

MEDIUM
4.8
CVSS Score
Published: July 10, 2026 at 08:14 PM UTC
Updated: October 25, 2026 at 03:10 PM UTC
2 products affected across 2 vendorsRabbitmq ServerRabbitmq Server

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Severity
MEDIUM4.8
Exploit prediction
EPSS 0.3%
SSVC
PoC

Description

RabbitMQ is a messaging and streaming broker. Prior to 3.13.14, 4.0.19, 4.1.10, and 4.2.5, the rabbitmq_federation_management plugin renders the consumer_tag field on the Federation Status page without HTML escaping, allowing a user who can configure a federation upstream or policy to execute JavaScript in the browser of a user viewing that page. This issue is fixed in versions 3.13.14, 4.0.19, 4.1.10, and 4.2.5.

Affected

Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.

3.13.0 ≤ v < 4.2.5
Affected range stops below 4.2.5, so it looks safe — our inference, not a vendor statement
Affected range stops below 3.13.14, so it looks safe — our inference, not a vendor statement
Affected range stops below 4.0.19, so it looks safe — our inference, not a vendor statement
Affected range stops below 4.1.10, so it looks safe — our inference, not a vendor statement
Affected range stops below 4.2.5, so it looks safe — our inference, not a vendor statement

References (6)

SSVC — Action Prioritization

SSVCPoCNot automatablePartial impact

SSVC signals action urgency (what to patch first), separate from CVSS which measures severity.

CVSS

Attack Vector
NETWORK
Complexity
LOW
Privileges
HIGH
User Interaction
REQUIRED
Scope
CHANGED
Confidentiality
LOW
Integrity
LOW
Availability
NONE
Vector?

Quick Info

StatusMODIFIED
CWE
CWE-79

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