CVE-2026-126495
6.1 MEDIUMpublic exploit availablePublished 2026-11-11 · Updated 2026-11-11
AI analysis for this CVE has not been generated yet. Raw NVD data is shown below.
NVD description
MQTTX desktop through 1.13.3 contains a stored cross-site scripting vulnerability that allows attackers to inject script by publishing malicious MQTT topic names or payloads rendered unescaped in tooltips. Attackers controlling a broker or publishing to subscribed topics can execute script in the Electron renderer, which has nodeIntegration enabled, when victims hover Topic Tree or JSON tree nodes.
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N
Weaknesses
CWE-79
Public exploit & PoC references
All references
- https://github.com/emqx/MQTTX
- https://github.com/emqx/MQTTX/blob/v1.13.3/src/background.ts#L276-L283
- https://github.com/emqx/MQTTX/blob/v1.13.3/src/widgets/JSONViewer.vue#L175-L184
- https://github.com/emqx/MQTTX/blob/v1.13.3/src/widgets/TreeView.vue#L195-L226
- https://github.com/emqx/MQTTX/issues/2180
- https://www.vulncheck.com/advisories/mqttx-through-1.13.3-stored-xss-via-topic-tree-and-json-tree-tooltips
Source data: NVD (nvd.nist.gov), public domain. Exploit-DB.ai adds local AI analysis for defensive use only.
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- MEDIUMCVE-2015-20130PoC
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