Weakness (CWE)
CWE-79: Cross-site Scripting
The product does not neutralize or incorrectly neutralizes user-controllable input before it is placed in output that is used as a web page that is served to other users.
How to prevent it (8 mitigations)
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Architecture and Design
Use a vetted library or framework that does not allow this weakness to occur or provides constructs that make this weakness easier to avoid [REF-1482].
Examples of libraries and frameworks that make it easier to generate properly encoded output include Microsoft's Anti-XSS library, the OWASP ESAPI Encoding module, and Apache Wicket.
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Implementation, Architecture and Design
Understand the context in which your data will be used and the encoding that will be expected. This is especially important when transmitting data between different components, or when generating outputs that can contain multiple encodings at the same time, such as web pages or multi-part mail messages. Study all expected communication protocols and data representations to determine the required encoding strategies.
For any data that will be output to another web page, especially any data that was received from external inputs, use the appropriate encoding on all non-alphanumeric characters.
Parts of the same output document may require different encodings, which will vary depending on whether the output is in the:
- HTML body
- Element attributes (such as src="XYZ")
- URIs
- JavaScript sections
- Cascading Style Sheets and style property
etc. Note that HTML Entity Encoding is only appropriate for the HTML body.
Consult the XSS Prevention Cheat Sheet [REF-724] for more details on the types of encoding and escaping that are needed.
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Architecture and Design, Implementation
Understand all the potential areas where untrusted inputs can enter your software: parameters or arguments, cookies, anything read from the network, environment variables, reverse DNS lookups, query results, request headers, URL components, e-mail, files, filenames, databases, and any external systems that provide data to the application. Remember that such inputs may be obtained indirectly through API calls.
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Architecture and Design
For any security checks that are performed on the client side, ensure that these checks are duplicated on the server side, in order to avoid CWE-602. Attackers can bypass the client-side checks by modifying values after the checks have been performed, or by changing the client to remove the client-side checks entirely. Then, these modified values would be submitted to the server.
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Architecture and Design
If available, use structured mechanisms that automatically enforce the separation between data and code. These mechanisms may be able to provide the relevant quoting, encoding, and validation automatically, instead of relying on the developer to provide this capability at every point where output is generated.
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Implementation
Use and specify an output encoding that can be handled by the downstream component that is reading the output. Common encodings include ISO-8859-1, UTF-7, and UTF-8. When an encoding is not specified, a downstream component may choose a different encoding, either by assuming a default encoding or automatically inferring which encoding is being used, which can be erroneous. When the encodings are inconsistent, the downstream component might treat some character or byte sequences as special, even if they are not special in the original encoding. Attackers might then be able to exploit this discrepancy and conduct injection attacks; they even might be able to bypass protection mechanisms that assume the original encoding is also being used by the downstream component.
The problem of inconsistent output encodings often arises in web pages. If an encoding is not specified in an HTTP header, web browsers often guess about which encoding is being used. This can open up the browser to subtle XSS attacks.
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Implementation
With Struts, write all data from form beans with the bean's filter attribute set to true.
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Implementation
To help mitigate XSS attacks against the user's session cookie, set the session cookie to be HttpOnly. In browsers that support the HttpOnly feature (such as more recent versions of Internet Explorer and Firefox), this attribute can prevent the user's session cookie from being accessible to malicious client-side scripts that use document.cookie. This is not a complete solution, since HttpOnly is not supported by all browsers. More importantly, XmlHttpRequest and other powerful browser technologies provide read access to HTTP headers, including the Set-Cookie header in which the HttpOnly flag is set.
Source: MITRE CWE-79
937 results · Clear filters · Feed
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Medium 5.4CVE-2023-29983 Public exploit
Cross Site Scripting vulnerability found in Maximilian Vogt cmaps v.8.0 allows a remote attacker to execute arbitrary c…
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Medium 6.1
Cross Site Scripting vulnerability found in Webkil QloApps v.1.5.2 allows a remote attacker to obtain sensitive informa…
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Critical 9.1CVE-2023-32070 Public exploit
Improper Neutralization of Script in Attributes in XWiki (X)HTML renderers
XWiki Platform is a generic wiki platform. Prior to version 14.6-rc-1, HTML rendering didn't check for dangerous attributes/attribute values. This allowed cross-site scripting (XSS) attacks via attributes and link URLs, e.g., supported in XWiki syntax. This h…
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High 7.1
WordPress Advanced Custom Fields / Advanced Custom Fields PRO plugins <= 6.1.5 vulnerable to Cross Site Scripting (XSS)
Unauth. Reflected Cross-Site Scripting (XSS) vulnerability in WP Engine Advanced Custom Fields Pro, WP Engine Advanced Custom Fields plugins <= 6.1.5 versions.
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Critical 9.1CVE-2023-31126 Public exploit
Improper Neutralization of Invalid Characters in Data Attribute Names in org.xwiki.commons:xwiki-commons-xml
`org.xwiki.commons:xwiki-commons-xml` is an XML library used by the open-source wiki platform XWiki. The HTML sanitizer, introduced in version 14.6-rc-1, allows the injection of arbitrary HTML code and thus cross-site scripting via invalid data attributes. Th…
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High 7.1CVE-2023-2591 Public exploit
Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') in nilsteampassnet/teampass
Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') in GitHub repository nilsteampassnet/teampass prior to 3.0.7.
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Medium 5.4CVE-2023-2516 Public exploit
Cross-site Scripting (XSS) - Stored in nilsteampassnet/teampass
Cross-site Scripting (XSS) - Stored in GitHub repository nilsteampassnet/teampass prior to 3.0.7.
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Medium 5.4CVE-2023-29839 Public exploit
A Stored Cross Site Scripting (XSS) vulnerability exists in multiple pages of Hotel Druid version 3.0.4, which allows a…
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Medium 5.4CVE-2023-31434 Public exploit
The parameters nutzer_titel, nutzer_vn, and nutzer_nn in the user profile, and langID and ONLINEID in direct links, in …
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Critical 9.6CVE-2022-47877 Public exploit
A Stored cross-site scripting vulnerability in Jedox 2020.2.5 allows remote, authenticated users to inject arbitrary we…
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Medium 6.1CVE-2023-25292 Public exploit
Reflected Cross Site Scripting (XSS) in Intermesh BV Group-Office version 6.6.145, allows attackers to gain escalated p…
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Medium 6.1
OURPHP <= 7.2.0 is vulnerale to Cross Site Scripting (XSS) via /client/manage/ourphp_out.php.
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Medium 4.8CVE-2023-29848 Public exploit
Bang Resto 1.0 was discovered to contain a stored cross-site scripting (XSS) vulnerability via the itemName parameter i…
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Medium 6.1CVE-2022-48150 Public exploit
Shopware vulnerable to cross-site scripting (XSS)
Shopware v5.5.10 was discovered to contain a cross-site scripting (XSS) vulnerability via the recovery/install/ URI.
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Critical 9.1CVE-2023-29528 Public exploit
Cross-site Scripting in org.xwiki.commons:xwiki-commons-xml
XWiki Commons are technical libraries common to several other top level XWiki projects. The "restricted" mode of the HTML cleaner in XWiki, introduced in version 4.2-milestone-1 and massively improved in version 14.6-rc-1, allowed the injection of arbitrary H…
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Medium 4.3CVE-2023-1767 Public exploit
The Snyk Advisor website (https://snyk.io/advisor/) was vulnerable to a stored XSS prior to 28th March 2023. A feature …
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Critical 9.1CVE-2023-29201 Public exploit
org.xwiki.commons:xwiki-commons-xml Cross-site Scripting vulnerability
XWiki Commons are technical libraries common to several other top level XWiki projects. The "restricted" mode of the HTML cleaner in XWiki, introduced in version 4.2-milestone-1, only escaped `<script>` and `<style>`-tags but neither attributes that can be us…
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Medium 5.4CVE-2022-48178 Public exploit
X2CRM Open Source Sales CRM 6.6 and 6.9 was discovered to contain a stored cross-site scripting (XSS) vulnerability via…
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Medium 5.4CVE-2022-48177 Public exploit
X2CRM Open Source Sales CRM 6.6 and 6.9 was discovered to contain a reflected cross-site scripting (XSS) vulnerability …
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Medium 6.1CVE-2022-31889 Public exploit
Cross Site Scripting (XSS) vulnerability in audit/templates/auditlogs.tmpl.php in osTicket osTicket-plugins before comm…
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Medium 6.1CVE-2022-47870 Public exploit
A Cross Site Scripting (XSS) vulnerability in the web SQL monitor login page in Redgate SQL Monitor 12.1.31.893 allows …
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Medium 6.1CVE-2023-26692 Public exploit
ZCBS Zijper Collectie Beheer Systeem (ZCBS), Zijper Publication Management System (ZPBS), and Zijper Image Bank Managem…
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Medium 5.4CVE-2023-26982 Public exploit
Trudesk v1.2.6 was discovered to contain a stored cross-site scripting (XSS) vulnerability via the Add Tags parameter u…
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Medium 5.4CVE-2022-1274 Public exploit
HTML Injection in Keycloak Admin REST API
A flaw was found in Keycloak in the execute-actions-email endpoint. This issue allows arbitrary HTML to be injected into emails sent to Keycloak users and can be misused to perform phishing or other attacks against users.
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High 7.1CVE-2023-28447 Public exploit
Cross site scripting vulnerability in Javascript escaping in smarty/smarty
Smarty is a template engine for PHP. In affected versions smarty did not properly escape javascript code. An attacker could exploit this vulnerability to execute arbitrary JavaScript code in the context of the user's browser session. This may lead to unauthor…
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Medium 4.6CVE-2022-48429 Public exploit
In JetBrains Hub before 2022.3.15573, 2022.2.15572, 2022.1.15583 reflected XSS in dashboards was possible
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Medium 6.1CVE-2022-45004 Public exploit
Gophish vulnerable to Cross-site Scripting via crafted landing page
Gophish through 0.12.1 was discovered to contain a cross-site scripting (XSS) vulnerability via a crafted landing page.
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Medium 6.1
Squidex before 7.4.0 was discovered to contain a squid.svg cross-site scripting (XSS) vulnerability.
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Medium 4.5CVE-2023-23408 Public exploit
Azure Apache Ambari Spoofing Vulnerability
Azure Apache Ambari Spoofing Vulnerability
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Medium 6.1
phpipam v1.6 was discovered to contain a reflected cross-site scripting (XSS) vulnerability via the closeClass paramete…
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Medium 5.4CVE-2022-44875 Public exploit
KioWare through 8.33 on Windows sets KioScriptingUrlACL.AclActions.AllowHigh for the about:blank origin, which allows a…
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Medium 5.4CVE-2022-42248 Public exploit
QlikView 12.60.2 was discovered to contain a stored cross-site scripting (XSS) vulnerability in the QvsViewClient funct…
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High 7.2
Metform Elementor Contact Form Builder <= 3.1.2 - Unauthenticated Stored Cross-Site Scripting
The Metform Elementor Contact Form Builder plugin for WordPress is vulnerable to Stored Cross-Site Scripting via text areas on forms in versions up to, and including, 3.1.2 due to insufficient input sanitization and output escaping. This makes it possible for…
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Low 3.5CVE-2023-0902 Public exploit
SourceCodester Simple Food Ordering System process_order.php cross site scripting
A vulnerability was found in SourceCodester Simple Food Ordering System 1.0. It has been classified as problematic. This affects an unknown part of the file process_order.php. The manipulation of the argument order leads to cross site scripting. It is possibl…
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Medium 5.4CVE-2022-40348 Public exploit
Cross Site Scripting (XSS) vulnerability in Intern Record System version 1.0 in /intern/controller.php in 'name' and 'e…
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Medium 6.1CVE-2022-45436 Public exploit
Stored cross-site scripting vulnerability in network maps editor feature
Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') vulnerability in Artica PFMS Pandora FMS v765 on all platforms, allows Cross-Site Scripting (XSS). As a manager privilege user , create a network map containing name as xss p…
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Medium 6.1CVE-2022-48110 Public exploit
CKSource CKEditor 5 35.4.0 was discovered to contain a cross-site scripting (XSS) vulnerability via the Full Featured C…
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Medium 6.1CVE-2023-23286 Public exploit
Cross Site Scripting (XSS) vulnerability in Provide server 14.4 allows attackers to execute arbitrary code through the …
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Critical 9.0CVE-2022-48311 Public exploit
**UNSUPPORTED WHEN ASSIGNED** Cross Site Scripting (XSS) in HP Deskjet 2540 series printer Firmware Version CEP1FN1418B…
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Low 3.5CVE-2018-25080 Public exploit
MobileDetect Example session_example.php initLayoutType cross site scripting
A vulnerability, which was classified as problematic, has been found in MobileDetect 2.8.31. This issue affects the function initLayoutType of the file examples/session_example.php of the component Example. The manipulation of the argument $_SERVER['PHP_SELF'…