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
2,694 results · Clear filters · Feed
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Low 3.5
MotoPress Timetable and Event Schedule Quick Edit admin-ajax.php cross site scripting
A vulnerability was found in MotoPress Timetable and Event Schedule. It has been rated as problematic. Affected by this issue is some unknown functionality of the file /wp-admin/admin-ajax.php of the component Quick Edit. The manipulation of the argument post…
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Low 3.5
SourceCodester Simple and Nice Shopping Cart Script login.php cross site scripting
A vulnerability has been found in SourceCodester Simple and Nice Shopping Cart Script and classified as problematic. Affected by this vulnerability is an unknown functionality of the file /mkshope/login.php. The manipulation of the argument msg leads to cross…
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Low 3.5
SourceCodester Guest Management System myform.php cross site scripting
A vulnerability classified as problematic has been found in SourceCodester Guest Management System. This affects an unknown part of the file myform.php. The manipulation of the argument name leads to cross site scripting. It is possible to initiate the attack…
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Low 3.5
SourceCodester Apartment Visitor Management System profile.php cross site scripting
A vulnerability was found in SourceCodester Apartment Visitor Management System. It has been classified as problematic. This affects an unknown part of the file profile.php. The manipulation leads to cross site scripting. It is possible to initiate the attack…
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Low 3.5
SourceCodester Company Website CMS contact cross site scripting
A vulnerability, which was classified as problematic, has been found in SourceCodester Company Website CMS. This issue affects some unknown processing of the file /dashboard/contact. The manipulation of the argument phone leads to cross site scripting. The at…
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Low 3.5
SourceCodester Library Management System cross site scripting
A vulnerability classified as problematic was found in SourceCodester Library Management System. This vulnerability affects unknown code of the file /qr/I/. The manipulation of the argument error leads to cross site scripting. The attack can be initiated remo…
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Low 3.5
SourceCodester Online Admission System index.php cross site scripting
A vulnerability classified as problematic has been found in SourceCodester Online Admission System. This affects an unknown part of the file /index.php. The manipulation of the argument student_add leads to cross site scripting. It is possible to initiate the…
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Low 3.5
SourceCodester Simple Online Book Store System edit.php cross site scripting
A vulnerability was found in SourceCodester Simple Online Book Store System. It has been classified as problematic. Affected is an unknown function of the file /admin/edit.php. The manipulation of the argument eid leads to cross site scripting. It is possible…
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Low 3.5
SourceCodester Company Website CMS add-blog.php cross site scripting
A vulnerability was found in SourceCodester Company Website CMS. It has been rated as problematic. Affected by this issue is some unknown functionality of the file add-blog.php. The manipulation leads to cross site scripting. The attack may be launched remote…
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Low 3.5
SourceCodester Simple E-Learning System claire_blake cross site scripting
A vulnerability classified as problematic was found in SourceCodester Simple E-Learning System. This vulnerability affects unknown code of the file /claire_blake. The manipulation of the argument Bio leads to cross site scripting. The attack can be initiated …
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Low 3.5
SourceCodester Wedding Hall Booking System Staff User Profile cross site scripting
A vulnerability, which was classified as problematic, was found in SourceCodester Wedding Hall Booking System. This affects an unknown part of the file /whbs/admin/?page=user of the component Staff User Profile. The manipulation of the argument First Name/Las…
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Low 3.5
SourceCodester Wedding Hall Booking System Profile Page cross site scripting
A vulnerability, which was classified as problematic, has been found in SourceCodester Wedding Hall Booking System. Affected by this issue is some unknown functionality of the file /whbs/?page=manage_account of the component Profile Page. The manipulation lea…
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Low 3.5
SourceCodester Wedding Hall Booking System Booking Form cross site scripting
A vulnerability classified as problematic was found in SourceCodester Wedding Hall Booking System. Affected by this vulnerability is an unknown functionality of the file /whbs/?page=my_bookings of the component Booking Form. The manipulation of the argument R…
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Low 3.5
SourceCodester Wedding Hall Booking System Contact Page cross site scripting
A vulnerability classified as problematic has been found in SourceCodester Wedding Hall Booking System. Affected is an unknown function of the file /whbs/?page=contact_us of the component Contact Page. The manipulation of the argument Message leads to cross s…
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Low 3.5
oretnom23 Fast Food Ordering System Menu List Page cross site scripting
A vulnerability, which was classified as problematic, was found in oretnom23 Fast Food Ordering System. This affects an unknown part of the component Menu List Page. The manipulation of the argument Description leads to cross site scripting. It is possible to…
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Low 3.5
SourceCodester Interview Management System addQuestion.php cross site scripting
A vulnerability was found in SourceCodester Interview Management System 1.0 and classified as problematic. This issue affects some unknown processing of the file /addQuestion.php. The manipulation of the argument question with the input <script>alert(1)</scri…
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Low 3.5
SourceCodester Apartment Visitor Management System manage-apartment.php cross site scripting
A vulnerability has been found in SourceCodester Apartment Visitor Management System 1.0 and classified as problematic. This vulnerability affects unknown code of the file /manage-apartment.php. The manipulation of the argument Apartment Number with the input…
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Low 3.5
SourceCodester Simple Food Ordering System login.php cross site scripting
A vulnerability, which was classified as problematic, was found in SourceCodester Simple Food Ordering System 1.0. This affects an unknown part of the file /login.php. The manipulation of the argument email/password with the input "><ScRiPt>alert(1)</sCrIpT> …
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Low 3.5
SourceCodester Alphaware Simple E-Commerce System stockin.php cross site scripting
A vulnerability, which was classified as problematic, has been found in SourceCodester Alphaware Simple E-Commerce System. Affected by this issue is some unknown functionality of the file stockin.php. The manipulation of the argument id with the input '"><scr…
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Low 3.5
SourceCodester Online Student Admission System Student User Page edit-profile.php cross site scripting
A vulnerability classified as problematic was found in SourceCodester Online Student Admission System. Affected by this vulnerability is an unknown functionality of the file edit-profile.php of the component Student User Page. The manipulation with the input …
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Low 3.5
SourceCodester Online Admission System index.php cross site scripting
A vulnerability, which was classified as problematic, was found in SourceCodester Online Admission System. Affected is an unknown function of the file index.php. The manipulation of the argument eid with the input 8</h3><script>alert(1)</script> leads to cros…
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Low 3.5
SourceCodester Garage Management System edituser.php cross site scripting
A vulnerability has been found in SourceCodester Garage Management System and classified as problematic. Affected by this vulnerability is an unknown functionality of the file edituser.php. The manipulation of the argument id with the input 1\"><ScRiPt>alert(…
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Low 3.4
WordPress Enable SVG, WebP & ICO Upload plugin <= 1.0.1 - Authenticated Stored Cross-Site Scripting (XSS) vulnerability
Authenticated (author or higher user role) Stored Cross-Site Scripting (XSS) vulnerability in ideasToCode Enable SVG, WebP & ICO Upload plugin <= 1.0.1 at WordPress.
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Low 3.5
SourceCodester Garage Management System createUser.php cross site scripting
A vulnerability, which was classified as problematic, was found in SourceCodester Garage Management System 1.0. Affected is an unknown function of the file /php_action/createUser.php. The manipulation of the argument userName with the input lala<img src="" on…
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Low 3.5
Stored Cross Site-Scripting in Agent Manager
In Pandora FMS v7.0NG.761 and below, in the agent creation section, the alias parameter is vulnerable to a Stored Cross Site-Scripting. This vulnerability can be exploited by an attacker with administrator privileges logged in the system.
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Low 3.5
Stored Cross Site-Scripting in File Manager
In Pandora FMS v7.0NG.761 and below, in the file manager section, the dirname parameter is vulnerable to a Stored Cross Site-Scripting. This vulnerability can be exploited by an attacker with administrator privileges logged in the system.
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Low 3.4
WordPress WP Maintenance plugin <= 6.0.7 - Authenticated Stored Cross-Site Scripting (XSS) vulnerability
Authenticated Stored Cross-Site Scripting (XSS) vulnerability in Florent Maillefaud's WP Maintenance plugin <= 6.0.7 at WordPress.
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Low 3.4
WordPress Social Media Share Buttons plugin <= 3.8.1 - Authenticated Stored Cross-Site Scripting (XSS) vulnerability
Authenticated (admin+) Stored Cross-Site Scripting (XSS) vulnerability in René Hermenau's Social Media Share Buttons plugin <= 3.8.1 at WordPress.
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Low 3.5
SourceCodester Simple e-Learning System claire_blake cross site scripting
A vulnerability classified as problematic was found in SourceCodester Simple e-Learning System 1.0. Affected by this vulnerability is an unknown functionality of the file /vcs/claire_blake. The manipulation of the argument Bio with the input "><script>alert(d…
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Low 2.6
Cross-site Scripting for Argo CD single sign on users
Argo CD is a declarative, GitOps continuous delivery tool for Kubernetes. Argo CD starting with 2.3.0 and prior to 2.3.6 and 2.4.5 is vulnerable to a cross-site scripting (XSS) bug which could allow an attacker to inject arbitrary JavaScript in the `/auth/cal…
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Low 3.5
SourceCodester Simple Parking Management System category cross site scripting
A vulnerability, which was classified as problematic, was found in SourceCodester Simple Parking Management System 1.0. This affects an unknown part of the file /ci_spms/admin/category. The manipulation of the argument vehicle_type with the input "><script>al…
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Low 3.5
SourceCodester Simple Parking Management System cross site scripting
A vulnerability, which was classified as problematic, has been found in SourceCodester Simple Parking Management System 1.0. Affected by this issue is some unknown functionality of the file /ci_spms/admin/search/searching/. The manipulation of the argument se…
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Low 3.5
SourceCodester Simple Sales Management System create cross site scripting
A vulnerability classified as problematic was found in SourceCodester Simple Sales Management System 1.0. Affected by this vulnerability is an unknown functionality of the file /ci_ssms/index.php/orders/create. The manipulation of the argument customer_name w…
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Low 3.5
SourceCodester Hotel Management System Room Edit Page 1 cross site scripting
A vulnerability classified as problematic has been found in SourceCodester Hotel Management System 2.0. Affected is an unknown function of the file /ci_hms/massage_room/edit/1 of the component Room Edit Page. The manipulation of the argument massageroomDetail…
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Low 3.7
Reflected XSS in graphs page of Zabbix Frontend
An authenticated user can create a link with reflected Javascript code inside it for the graphs page and send it to other users. The payload can be executed only with a known CSRF token value of the victim, which is changed periodically and is difficult to pr…
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Low 3.7
Reflected XSS in discovery page of Zabbix Frontend
An authenticated user can create a link with reflected Javascript code inside it for the discovery page and send it to other users. The payload can be executed only with a known CSRF token value of the victim, which is changed periodically and is difficult to…
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Low 3.5
SourceCodester Library Management System cross site scripting
A vulnerability was found in SourceCodester Library Management System 1.0. It has been declared as problematic. Affected by this vulnerability is an unknown functionality of the file /admin/edit_admin_details.php?id=admin. The manipulation of the argument Nam…
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Low 3.1
Cross site scripting in Concrete CMS
XSS in /dashboard/blocks/stacks/view_details/ - old browsers only. When using an older browser with built-in XSS protection disabled, insufficient sanitation where built urls are outputted can be exploited for Concrete 8.5.7 and below as well as Concrete 9.0 …
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Low 3.5
Elefant CMS Blog Post Persistent cross site scriting
A vulnerability, which was classified as problematic, was found in Elefant CMS 1.3.12-RC. This affects an unknown part of the component Blog Post Handler. The manipulation leads to basic cross site scripting (Persistent). It is possible to initiate the attack…
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Low 3.5
Elefant CMS Title Persistent cross site scriting
A vulnerability, which was classified as problematic, has been found in Elefant CMS 1.3.12-RC. Affected by this issue is some unknown functionality of the component Title Handler. The manipulation with the input </title><img src=no onerror=alert(1)> leads to …