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CVE-2020-7656:
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CVE-2020-7656 | Medium Severity | Armis
\") that bypass jQuery's security filters, allowing arbitrary JavaScript execution in the victim's browser. This vulnerability is classified as CWE-79 (Cross-site Scripting), which is a common web application security flaw that allows attackers to inject client-side scripts into web pages viewed by other users.\n","datePublished":"2020-05-19T21:15:10.000Z","dateModified":"2026-05-13T09:02:54.073Z","keywords":"Medium, 2020, CVE, vulnerability, cybersecurity, CVSS","url":"https://cve.armis.com/CVE-2020-7656","author":{"@type":"Organization","name":"Armis","url":"https://www.armis.com"},"publisher":{"@type":"Organization","name":"Armis","url":"https://www.armis.com"},"license":"https://creativecommons.org/licenses/by-nc-sa/4.0/","isBasedOn":{"@type":"WebPage","url":"https://nvd.nist.gov/vuln/detail/CVE-2020-7656","name":"NVD CVE-2020-7656"},"additionalProperty":[{"@type":"PropertyValue","name":"CVSS Score","value":"6.1"},{"@type":"PropertyValue","name":"Severity","value":"Medium"},{"@type":"PropertyValue","name":"EPSS Score","value":"1.10%"},{"@type":"PropertyValue","name":"EPSS Percentile","value":"78th"},{"@type":"PropertyValue","name":"Attack Vector","value":"NETWORK"},{"@type":"PropertyValue","name":"Attack Complexity","value":"LOW"},{"@type":"PropertyValue","name":"Privileges Required","value":"NONE"},{"@type":"PropertyValue","name":"User Interaction","value":"REQUIRED"},{"@type":"PropertyValue","name":"Scope","value":"CHANGED"},{"@type":"PropertyValue","name":"Confidentiality Impact","value":"LOW"},{"@type":"PropertyValue","name":"Integrity Impact","value":"LOW"},{"@type":"PropertyValue","name":"Availability Impact","value":"NONE"}]},{"@context":"https://schema.org","@type":"FAQPage","mainEntity":[{"@type":"Question","name":"What is CVE-2020-7656?","acceptedAnswer":{"@type":"Answer","text":"Cross-site Scripting vulnerability in jQuery prior to 1.9.0 via the load method.\n"}},{"@type":"Question","name":"How severe is CVE-2020-7656?","acceptedAnswer":{"@type":"Answer","text":"CVE-2020-7656 has a CVSS score of 6.1 (Medium severity). EPSS score: 1.10% (78th percentile), indicating the estimated probability of exploitation in the wild."}},{"@type":"Question","name":"How do I fix CVE-2020-7656?","acceptedAnswer":{"@type":"Answer","text":"To address this vulnerability, organizations should:\n1. Upgrade jQuery to version 1.9.0 or later, which includes fixes for this XSS vulnerability.\n2. If upgrading is not immediately possible, implement additional server-side content sanitization to ensure that all user-controlled input is properly escaped before being processed by jQuery's load method.\n3. Consider using Content Security Policy (CSP) headers to mitigate the impact of XSS vulnerabilities.\n4. Audit your codebase for instances of the jQuery load method that process untrusted data.\n5. Implement input validation on both client and server sides to reject potentially malicious content.\n6. For long-term security, establish a process to regularly update all JavaScript libraries to their latest secure versions.\n"}}]},{"@context":"https://schema.org","@type":"BreadcrumbList","itemListElement":[{"@type":"ListItem","position":1,"name":"Home","item":"https://cve.armis.com/"},{"@type":"ListItem","position":2,"name":"CVE-2020-7656","item":"https://cve.armis.com/CVE-2020-7656"}]}]
CVE-2020-7656:
Cross-site Scripting vulnerability in jQuery prior to 1.9.0 via the load method.
Score
A numerical rating that indicates how dangerous this vulnerability is.
6.1Medium
Published Date:May 19, 2020
CISA KEV Date:*No Data*
Industries Affected:20
Threat Predictions
EPSS Score:1.1
EPSS Percentile:78%
Exploitability
Score:2.8
Attack Vector:NETWORK
Attack Complexity:LOW
Privileges Required:NONE
User Interaction:
REQUIRED
Scope:CHANGED
Impact
Score:2.7
Confidentiality Impact:LOW
Integrity Impact:LOW
Availability Impact:NONE
Description Preview
Cross-site Scripting vulnerability in jQuery prior to 1.9.0 via the load method.
Overview
This vulnerability (CVE-2020-7656) affects jQuery libraries before version 1.9.0. The issue stems from inadequate filtering in jQuery's load method, which is commonly used to load HTML content from a server and insert it into the DOM. When processing HTML responses, the load method attempts to remove script tags to prevent script execution, but it fails to recognize script tags that contain whitespace characters. As a result, an attacker can craft special HTML content with malformed script tags (like "") that bypass jQuery's security filters, allowing arbitrary JavaScript execution in the victim's browser. This vulnerability is classified as CWE-79 (Cross-site Scripting), which is a common web application security flaw that allows attackers to inject client-side scripts into web pages viewed by other users.
Remediation
To address this vulnerability, organizations should:
Upgrade jQuery to version 1.9.0 or later, which includes fixes for this XSS vulnerability.
If upgrading is not immediately possible, implement additional server-side content sanitization to ensure that all user-controlled input is properly escaped before being processed by jQuery's load method.
Consider using Content Security Policy (CSP) headers to mitigate the impact of XSS vulnerabilities.
Audit your codebase for instances of the jQuery load method that process untrusted data.
Implement input validation on both client and server sides to reject potentially malicious content.
For long-term security, establish a process to regularly update all JavaScript libraries to their latest secure versions.
