EUVD-2026-43014Severity by source
CVSS:4.0/AV:N/AC:L/AT:P/PR:H/UI:P/VC:H/VI:N/VA:N/SC:L/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X
Stored XSS requires high privileges to plant payload and user interaction to trigger; scope changes to victim browser with limited session-level C and I impact.
Primary rating from Vendor (GitHub_M).
CVSS VectorVendor: GitHub_M
CVSS:4.0/AV:N/AC:L/AT:P/PR:H/UI:P/VC:H/VI:N/VA:N/SC:L/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X
Lifecycle Timeline
2DescriptionCVE.org
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.
AnalysisAI
Stored cross-site scripting in the RabbitMQ federation management plugin allows any user with federation upstream or policy configuration privileges to execute arbitrary JavaScript in the browser of an administrator viewing the Federation Status page. The rabbitmq_federation_management plugin renders the consumer_tag field without HTML escaping, making it a persistent injection vector that fires passively when a victim navigates to the page. …
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Attack ChainAIDerived
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Vulnerability AssessmentAI
| Exploitation | Two specific conditions must be met simultaneously. … Additional conditions and limiting factors are described in the full assessment. |
| Risk Assessment | The CVSS 4.0 vector (AV:N/AC:L/AT:P/PR:H/UI:P, score 5.7) encodes three meaningful constraints that substantially reduce real-world risk relative to a generic XSS. … Full risk analysis with EPSS, KEV, and SSVC signal comparison available after sign-in. |
| Exploit Scenario | An attacker holding RabbitMQ administrative credentials configures a federation upstream with a consumer_tag payload containing a JavaScript snippet designed to exfiltrate the victim's management UI session cookie to an attacker-controlled endpoint. When a second administrator subsequently navigates to the Federation Status page, the unescaped tag renders as live script in the victim's browser, executing the payload and transmitting their session token. … |
| Remediation | Upgrade RabbitMQ to one of the vendor-released patched versions: 3.13.14, 4.0.19, 4.1.10, or 4.2.5, which introduce HTML escaping for the consumer_tag field via the fixes in PRs #15708 and #15711 (commits 33dedfe4 and c2d0d69e). … Detailed patch versions, workarounds, and compensating controls in full report. |
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External POC / Exploit Code
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