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
655 results · Clear filters · Feed
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Medium 5.4CVE-2026-34212 Public exploit
Docmost page content has stored XSS via unsanitized attachment URLs
Docmost is open-source collaborative wiki and documentation software. In versions prior to 0.71.0, improper neutralization of attachment URLs in Docmost allows a low-privileged authenticated user to store a malicious `javascript:` URL inside an attachment nod…
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Medium 6.1CVE-2025-69993 Public exploit
Leaflet versions up to and including 1.9.4 are vulnerable to Cross-Site Scripting (XSS) via the bindPopup() method. Thi…
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Medium 6.5CVE-2026-39636 Public exploit
WordPress Livemesh Addons for Elementor plugin <= 9.0 - Cross Site Scripting (XSS) vulnerability
Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') vulnerability in livemesh Livemesh Addons for Elementor addons-for-elementor allows Stored XSS.This issue affects Livemesh Addons for Elementor: from n/a through <= 9.0.
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Medium 4.7CVE-2026-4406 Public exploit
Gravity Forms <= 2.9.30 - Reflected Cross-Site Scripting via 'form_ids' Parameter
The Gravity Forms plugin for WordPress is vulnerable to Reflected Cross-Site Scripting via the `form_ids` parameter in the `gform_get_config` AJAX action in all versions up to, and including, 2.9.30. This is due to the `GFCommon::send_json()` method outputtin…
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Medium 4.3CVE-2026-5615 Public exploit
givanz Vvvebjs File Upload Endpoint upload.php cross site scripting
A weakness has been identified in givanz Vvvebjs up to 2.0.5. The affected element is an unknown function of the file upload.php of the component File Upload Endpoint. This manipulation of the argument uploadAllowExtensions causes cross site scripting. Remote…
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Medium 6.4CVE-2026-2600 Public exploit
ElementsKit Elementor Addons and Templates <= 3.7.9 - Authenticated (Contributor+) Stored Cross-Site Scripting via Simple Tab Widget
The ElementsKit Elementor Addons and Templates plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the 'ekit_tab_title' parameter in the Simple Tab widget in all versions up to, and including, 3.7.9 due to insufficient input sanitization and…
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Medium 6.1CVE-2026-30252 Public exploit
Multiple reflected cross-site scripting (XSS) vulnerabilities in the login.php endpoint of Interzen Consulting S.r.l Ze…
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Medium 6.1CVE-2026-30251 Public exploit
A reflected cross-site scripting (XSS) vulnerability in the login_newpwd.php endpoint of Interzen Consulting S.r.l ZenS…
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Medium 5.4CVE-2026-29598 Public exploit
Multiple stored cross-site scripting (XSS) vulnerabilities in the submit_add_user.asp endpoint of DDSN Interactive Acor…
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Medium 6.1CVE-2026-30082 Public exploit
Multiple stored cross-site scripting (XSS) vulnerabilities in the Edit feature of the Software Package List page of Ing…
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Medium 5.4CVE-2024-46878 Public exploit
A Cross-Site Scripting (XSS) vulnerability exists in the page parameter of tiki-editpage.php in Tiki version 26.3 and e…
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Medium 5.4CVE-2024-46879 Public exploit
A Reflected Cross-Site Scripting (XSS) vulnerability exists in the POST request data zipPath of tiki-admin_system.php i…
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Medium 6.1CVE-2025-52204 Public exploit
A Cross-Site Scripting (XSS) vulnerability exists in Znuny::ITSM 6.5.x in the customer.pl endpoint via the OTRSCustomer…
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Medium 6.4CVE-2026-3333 Public exploit
MinhNhut Link Gateway <= 3.6.1 - Authenticated (Contributor+) Stored Cross-Site Scripting via Shortcode Attributes
The MinhNhut Link Gateway plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the plugin's 'linkgate' shortcode in all versions up to, and including, 3.6.1 due to insufficient input sanitization and output escaping on user supplied attribute…
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Medium 6.4CVE-2026-3516 Public exploit
Contact List <= 3.0.18 - Authenticated (Contributor+) Stored Cross-Site Scripting via '_cl_map_iframe' Parameter
The Contact List plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the '_cl_map_iframe' parameter in all versions up to, and including, 3.0.18. This is due to insufficient input sanitization and output escaping when handling the Google Map…
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Medium 5.3CVE-2026-33067 Public exploit
SiYuan has Stored XSS to RCE via Unsanitized Bazaar Package Metadata
SiYuan is a personal knowledge management system. Versions 3.6.0 and below render package metadata fields (displayName, description) using template literals without HTML escaping. A malicious package author can inject arbitrary HTML/JavaScript into these fiel…
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Medium 5.4CVE-2026-30048 Public exploit
NotChatbot WebChat has a stored cross-site scripting (XSS) vulnerability
A stored cross-site scripting (XSS) vulnerability exists in the NotChatbot WebChat widget thru 1.4.4. User-supplied input is not properly sanitized before being stored and rendered in the chat conversation history. This allows an attacker to inject arbitrary …
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Medium 6.1CVE-2026-30695 Public exploit
A Cross-Site Scripting (XSS) vulnerability exists in the web-based configuration interface of Zucchetti Axess access co…
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Medium 6.4CVE-2026-3228 Public exploit
NextScripts: Social Networks Auto-Poster <= 4.4.6 - Authenticated (Contributor+) Stored Cross-Site Scripting via 'nxs_fbembed' Shortcode
The NextScripts: Social Networks Auto-Poster plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the `[nxs_fbembed]` shortcode in all versions up to, and including, 4.4.6. This is due to insufficient input sanitization and output escaping on…
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Medium 5.1CVE-2026-24415 Public exploit
OpenSTAManager affected by reflected XSS in modifica_iva.php via righe parameter
OpenSTAManager is an open source management software for technical assistance and invoicing. OpenSTAManager v2.9.8 and earlier contains Reflected XSS vulnerabilities in invoice/order/contract modification modals. The application fails to properly sanitize use…
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Medium 5.1CVE-2026-1434 Public exploit
Reflected XSS in Omega-PSIR
Omega-PSIR is vulnerable to Reflected XSS via the lang parameter. An attacker can craft a malicious URL that, when opened, causes arbitrary JavaScript to execute in the victim’s browser. This issue was fixed in 4.6.7.
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Medium 5.4CVE-2025-56605 Public exploit
A reflected Cross-Site Scripting (XSS) vulnerability exists in the register.php backend script of PuneethReddyHC Event …
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Medium 6.8CVE-2026-27621 Public exploit
TypiCMS Core has Stored Cross-Site Scripting (XSS) via SVG File Upload
TypiCMS is a multilingual content management system based on the Laravel framework. A Stored Cross-Site Scripting (XSS) vulnerability exists in the file upload module of TypiCMS prior to version 16.1.7. The application allows users with file upload permission…
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Medium 4.8CVE-2026-25596 Public exploit
InvoicePlane has Stored XSS via Product Unit Name in Invoice Item List
InvoicePlane is a self-hosted open source application for managing invoices, clients, and payments. A Stored Cross-Site Scripting (XSS) vulnerability exists in InvoicePlane 1.7.0 via the Product Unit Name fields. An authenticated administrator can inject mali…
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Medium 4.8CVE-2026-25595 Public exploit
InvoicePlane has Stored XSS via Invoice Number in Invoice View and Dashboard
InvoicePlane is a self-hosted open source application for managing invoices, clients, and payments. A Stored Cross-Site Scripting (XSS) vulnerability exists in InvoicePlane 1.7.0 via the Invoice Number field. An authenticated administrator can inject maliciou…
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Medium 4.8CVE-2026-25594 Public exploit
InvoicePlane has Stored XSS via Family Name in Product Form
InvoicePlane is a self-hosted open source application for managing invoices, clients, and payments. A Stored Cross-Site Scripting (XSS) vulnerability exists in InvoicePlane 1.7.0 via the Family Name field. The `family_name` value is rendered without HTML enco…
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Medium 4.4CVE-2026-2002 Public exploit
Forminator Forms – Contact Form, Payment Form & Custom Form Builder <= 1.50.2 - Authenticated (Administrator+) Stored Cross-Site Scripting
The Forminator Forms – Contact Form, Payment Form & Custom Form Builder plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the form_name parameter in all versions up to, and including, 1.50.2 due to insufficient input sanitization and outpu…
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Medium 4.3CVE-2025-65717 Public exploit
An issue in Visual Studio Code Extensions Live Server v5.7.9 allows attackers to exfiltrate files via user interaction …
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Medium 6.4CVE-2026-1096 Public exploit
Best-wp-google-map <= 2.1 - Authenticated (Contributor+) Stored Cross-Site Scripting via 'latitude' Shortcode Attribute
The Best-wp-google-map plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the 'latitude' and 'longitudinal' parameters of the 'google_map_view' shortcode in all versions up to, and including, 2.1 due to insufficient input sanitization and o…
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Medium 5.3CVE-2026-1769 Public exploit
Stored XSS on Xerox CentreWare Web 7.0.6
Improper Neutralization of Input During Web Page Generation (XSS or 'Cross-site Scripting') vulnerability in Xerox CentreWare on Windows allows Stored XSS.This issue affects CentreWare: through 7.0.6. Consider upgrading Xerox® CentreWare Web® to v7.2.2.25 vi…
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Medium 6.1CVE-2025-70545 Public exploit
A stored cross-site scripting (XSS) vulnerability exists in the web management interface of the PPC (Belden) ONT 2K05X …
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Medium 6.4CVE-2026-1210 Public exploit
Happy Addons for Elementor <= 3.20.7 - Authenticated (Contributor+) Stored Cross-Site Scripting via '_elementor_data' Meta Field
The Happy Addons for Elementor plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the '_elementor_data' meta field in all versions up to, and including, 3.20.7 due to insufficient input sanitization and output escaping. This makes it possib…
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Medium 5.4CVE-2025-69848 Public exploit
NetBox is an open-source infrastructure resource modeling and IP address management platform. A reflected cross-site sc…
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Medium 6.1CVE-2025-70849 Public exploit
Podinfo affected by Arbitrary File Upload that leads to Stored Cross-Site Scripting (XSS)
Arbitrary File Upload in podinfo thru 6.9.0 allows unauthenticated attackers to upload arbitrary files via crafted POST request to the /store endpoint. The application renders uploaded content without a restrictive Content-Security-Policy (CSP) or adequate Co…
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Medium 4.8CVE-2025-70336 Public exploit
A Stored cross-site scripting (XSS) vulnerability in 'Create New Live Item' in PodcastGenerator 3.2.9 allows remote att…
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Medium 5.4CVE-2025-70368 Public exploit
Worklenz version 2.1.5 contains a Stored Cross-Site Scripting (XSS) vulnerability in the Project Updates feature. An at…
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Medium 6.1CVE-2025-67263 Public exploit
Abacre Retail Point of Sale 14.0.0.396 is affected by a stored cross-site scripting (XSS) vulnerability in the Clients …
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Medium 6.1CVE-2026-0594 Public exploit
List Site Contributors <= 1.1.8 - Reflected Cross-Site Scripting via alpha
The List Site Contributors plugin for WordPress is vulnerable to Reflected Cross-Site Scripting via the 'alpha' parameter in versions up to, and including, 1.1.8 due to insufficient input sanitization and output escaping. This makes it possible for unauthenti…
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Medium 6.4CVE-2025-14893 Public exploit
IndieWeb <= 4.0.5 - Authenticated (Author+) Stored Cross-Site Scripting via 'Telephone' Parameter
The IndieWeb plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the 'Telephone' parameter in all versions up to, and including, 4.0.5 due to insufficient input sanitization and output escaping. This makes it possible for authenticated attac…
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Medium 6.1CVE-2025-57462 Public exploit
Stored cross-site scripting (xss) in machsol machpanel 8.0.32 allows attackers to execute arbitrary web scripts or HTML…