CAPEC-111StandardDraft
JSON Hijacking (aka JavaScript Hijacking)
An attacker targets a system that uses JavaScript Object Notation (JSON) as a transport mechanism between the client and the server (common in Web 2.0 systems using AJAX) to steal possibly confidential information transmitted from the server back to the client inside the JSON object by taking advantage of the loophole in the browser's Same Origin Policy that does not prohibit JavaScript from one website to be included and executed in the context of another website.
Open in catalog with CAPEC filter →Related CWEs
CWE-345
The product does not sufficiently verify the origin or authenticity of data, in a way that causes it to accept invalid data.
CWE-346
The product does not properly verify that the source of data or communication is valid.
CWE-352
The web application does not, or cannot, sufficiently verify whether a request was intentionally provided by the user who sent the request, which could have originated from an unauthorized actor.
Related vulnerabilities
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CVE-2026-45674Netty is a network application framework for development of protocol servers and clients. Prior to versions 4.1.135.Final and 4.2.15.Final, Netty's DnsResolveContext fails to validate the origin (bailiwick) of CNAME records in DNS responses. Versions 4.1.135.Final and 4.2.15.Final patch the issue.
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CVE-2019-3809A flaw was found in Moodle versions 3.1 to 3.1.15 and earlier unsupported versions. The mybackpack functionality allowed setting the URL of badges, when it should be restricted to the Mozilla Open Badges backpack URL. This resulted in the possibility of blind SSRF via requests made by the page.
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The firmware upgrade endpoint in `upgrade_contents.php` accepts arbitrary file uploads without validating file headers, cryptographic signatures, or enforcing .tgz format requirements, allowing malicious firmware injection. This endpoint also subsequently provides ways for arbitrary file uploads and subsequent remote code execution
CVE-2022-36130HashiCorp Boundary up to 0.10.1 did not properly perform data integrity checks to ensure the resources were associated with the correct scopes, allowing potential privilege escalation for authorized users of another scope. Fixed in Boundary 0.10.2.
CVE-2018-1712IBM API Connect's Developer Portal 5.0.0.0 through 5.0.8.3 is vulnerable to Server Side Request Forgery. An attacker, using specially crafted input parameters can trick the server into making potentially malicious calls within the trusted network. IBM X-Force ID: 146370.
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This issue affects Liderahenk: from 2.0.1 before 2.0.2.
CVE-2026-2790Same-origin policy bypass in the Networking: JAR component. This vulnerability was fixed in Firefox 148, Firefox ESR 140.8, Thunderbird 148, and Thunderbird 140.8.