CVE-2018-6341
mediumpriority · track · 35EPSS 0.034 · 89 %ileexploit · PoCDEEUUSEPSS · scored 2026-10-28
React applications which rendered to HTML using the ReactDOMServer API were not escaping user-supplied attribute names at render-time. That lack of escaping could lead to a cross-site scripting vulnerability. This issue affected minor releases 16.0.x, 16.1.x, 16.2.x, 16.3.x, and 16.4.x. It was fixed in 16.0.1, 16.1.2, 16.2.1, 16.3.3, and 16.4.2.
cvss
Technical severity, 0–10. One row per scoring source.
base score 0–10 · higher = more severe · hover a vector to decode
ssvc
A stakeholder decision — act, attend, or track — from exploitation and impact.
weaknesses
The CWE weakness classes this flaw belongs to.
exploits (1)
Public proof-of-concept and weaponised exploit code.
- diwangs/react16-ssrCVE-2018-6341PoC · poc_in_github
affected products (22)
Products and version ranges known to be affected.
advisories (2)
Vendor and ecosystem advisories describing this.
- WID-SEC-W-2022-1603IBM Tivoli Netcool/OMNIbus: Mehrere SchwachstellenDeutsch2022-10-03csaf · cert_bundDE
Ein entfernter, anonymer Angreifer kann mehrere Schwachstellen in IBM Tivoli Netcool/OMNIbus ausnutzen, um beliebigen Programmcode auszuführen, Informationen offenzulegen, Dateien zu manipulieren oder einen Denial of Service Zustand herbeizuführen.
- GHSA-mvjj-gqq2-p4hwCross-Site Scripting in react-dom2019-01-04ghsa · osvUS
Affected versions of `react-dom` are vulnerable to Cross-Site Scripting (XSS). The package fails to validate attribute names in HTML tags which may lead to Cross-Site Scripting in specific scenarios. This may allow attackers to execute arbitrary JavaScript in the victim's browser. To be affected by this vulnerability, the application needs to: - be a server-side React app - be rendered to HTML using `ReactDOMServer` - include an attribute name from user input in an HTML tag ## Recommendation If you are using `react-dom` 16.0.x, upgrade to 16.0.1 or later. If you are using `react-dom` 16.1.x, upgrade to 16.1.2 or later. If you are using `react-dom` 16.2.x, upgrade to 16.2.1 or later. If you are using `react-dom` 16.3.x, upgrade to 16.3.3 or later. If you are using `react-dom` 16.4.x, upgrade to 16.4.2 or later.
also known as (3)
Other names and identifiers for this entity.
sources
Which sources assert this record, and when.
references (6)
External citations — patches, advisories, analysis.
- https://reactjs.org/blog/2018/08/01/react-v-16-4-2.htmlcnnvd
- https://twitter.com/reactjs/status/1024745321987887104cnnvd
- https://reactjs.org/blog/2018/08/01/react-v-16-4-2.htmlenisa_euvd
- https://twitter.com/reactjs/status/1024745321987887104enisa_euvd
- https://reactjs.org/blog/2018/08/01/react-v-16-4-2.htmlVendor Advisorynvd
- https://twitter.com/reactjs/status/1024745321987887104Vendor Advisorynvd
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