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
SourceCodester Health Center Patient Record Management System hematology_print.php cross site scripting
A vulnerability has been found in SourceCodester Health Center Patient Record Management System 1.0 and classified as problematic. Affected by this vulnerability is an unknown functionality of the file hematology_print.php. The manipulation of the argument he…
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Low 3.5
SourceCodester Computer Parts Sales and Inventory System Add Supplier cross site scripting
A vulnerability, which was classified as problematic, was found in SourceCodester Computer Parts Sales and Inventory System 1.0. Affected is an unknown function of the component Add Supplier Handler. The manipulation of the argument company_name/province/city…
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Low 3.5
cfire24 ajaxlife cross site scripting
A vulnerability has been found in cfire24 ajaxlife up to 0.3.2 and classified as problematic. This vulnerability affects unknown code. The manipulation leads to cross site scripting. The attack can be initiated remotely. Upgrading to version 0.3.3 is able to …
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Low 3.5
Media Downloader Plugin getfile.php dl_file_resumable cross site scripting
A vulnerability was found in Media Downloader Plugin 0.1.992 on WordPress. It has been declared as problematic. This vulnerability affects the function dl_file_resumable of the file getfile.php. The manipulation of the argument file leads to cross site script…
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Low 3.5
SourceCodester Health Center Patient Record Management System fecalysis_form.php cross site scripting
A vulnerability classified as problematic was found in SourceCodester Health Center Patient Record Management System 1.0. This vulnerability affects unknown code of the file admin/fecalysis_form.php. The manipulation of the argument itr_no leads to cross site…
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Low 3.5
SourceCodester Computer Parts Sales and Inventory System customer.php cross site scripting
A vulnerability has been found in SourceCodester Computer Parts Sales and Inventory System 1.0 and classified as problematic. This vulnerability affects unknown code of the file customer.php. The manipulation of the argument FIRST_NAME/LAST_NAME/PHONE_NUMBER …
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Low 2.4
SourceCodester Simple Payroll System POST Parameter cross site scripting
A vulnerability was found in SourceCodester Simple Payroll System 1.0. It has been declared as problematic. Affected by this vulnerability is an unknown functionality of the file admin/?page=admin of the component POST Parameter Handler. The manipulation of t…
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Low 3.3
Multiple stored XSS vulnerabilities in Sophos Connect versions older than 2.2.90 allow Javascript code to run in the lo…
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Low 3.5
SourceCodester Online Pet Shop We App update_status.php cross site scripting
A vulnerability has been found in SourceCodester Online Pet Shop We App 1.0 and classified as problematic. This vulnerability affects unknown code of the file /pet_shop/admin/orders/update_status.php. The manipulation of the argument oid with the input 1"><sc…
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Low 3.5
SourceCodester Simple Responsive Tourism Website rate_review.php cross site scripting
A vulnerability, which was classified as problematic, was found in SourceCodester Simple Responsive Tourism Website 1.0. This affects an unknown part of the file /tourism/rate_review.php. The manipulation of the argument id with the input 1"><script>alert(111…
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Low 3.5
dro.pm fileman.php cross site scripting
A vulnerability, which was classified as problematic, was found in dro.pm. This affects an unknown part of the file web/fileman.php. The manipulation of the argument secret/key leads to cross site scripting. It is possible to initiate the attack remotely. Thi…
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Low 3.5
SourceCodester/code-projects Online Boat Reservation System POST Parameter login.php cross site scripting
A vulnerability has been found in SourceCodester/code-projects Online Boat Reservation System 1.0 and classified as problematic. Affected by this vulnerability is an unknown functionality of the file /boat/login.php of the component POST Parameter Handler. Th…
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Low 3.5
SourceCodester Medical Certificate Generator App New Record cross site scripting
A vulnerability was found in SourceCodester Medical Certificate Generator App 1.0. It has been classified as problematic. This affects an unknown part of the component New Record Handler. The manipulation of the argument Firstname/Middlename/Lastname/Suffix/N…
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Low 3.5
SourceCodester Online Pizza Ordering System cross site scripting
A vulnerability classified as problematic was found in SourceCodester Online Pizza Ordering System 1.0. This vulnerability affects unknown code of the file index.php?page=checkout. The manipulation leads to cross site scripting. The attack can be initiated re…
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Low 2.4
SourceCodester Online Eyewear Shop cross site scripting
A vulnerability classified as problematic was found in SourceCodester Online Eyewear Shop 1.0. Affected by this vulnerability is an unknown functionality of the file admin/?page=orders/view_order. The manipulation of the argument id leads to cross site script…
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Low 3.5
NHN TOAST UI Chart Legend cross site scripting
A vulnerability, which was classified as problematic, has been found in NHN TOAST UI Chart 4.1.4. This issue affects some unknown processing of the component Legend Handler. The manipulation leads to cross site scripting. The attack may be initiated remotely.…
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Low 3.5
SourceCodester Best POS Management System cross site scripting
A vulnerability, which was classified as problematic, was found in SourceCodester Best POS Management System 1.0. Affected is an unknown function of the file index.php?page=add-category. The manipulation of the argument Name with the input "><img src=x onerro…
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Low 3.5
cention-chatserver InternalChatProtocol.fe _formatBody cross site scripting
A vulnerability was found in cention-chatserver 3.8.0-rc1. It has been declared as problematic. Affected by this vulnerability is the function _formatBody of the file lib/InternalChatProtocol.fe. The manipulation of the argument body leads to cross site scrip…
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Low 3.5
meta4creations Post Duplicator Plugin notices.php mtphr_post_duplicator_notice cross site scripting
A vulnerability was found in meta4creations Post Duplicator Plugin 2.18 on WordPress. It has been classified as problematic. Affected is the function mtphr_post_duplicator_notice of the file includes/notices.php. The manipulation of the argument post-duplicat…
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Low 3.5
generator-hottowel 404 Error _app.js cross site scripting
A vulnerability, which was classified as problematic, was found in generator-hottowel 0.0.11. Affected is an unknown function of the file app/templates/src/server/_app.js of the component 404 Error Handler. The manipulation leads to cross site scripting. It i…
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Low 3.5
NREL api-umbrella-web Admin Data Table cross site scripting
A vulnerability was found in NREL api-umbrella-web 0.7.1. It has been classified as problematic. This affects an unknown part of the component Admin Data Table Handler. The manipulation leads to cross site scripting. It is possible to initiate the attack remo…
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Low 3.5
qt-users-jp silk header.qml cross site scripting
A vulnerability was found in qt-users-jp silk 0.0.1. It has been declared as problematic. This vulnerability affects unknown code of the file contents/root/examples/header.qml. The manipulation of the argument model.key/model.value leads to cross site scripti…
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Low 3.5
madgicweb BuddyStream Plugin ShareBox.php cross site scripting
A vulnerability was found in madgicweb BuddyStream Plugin up to 3.2.7 on WordPress. It has been declared as problematic. Affected by this vulnerability is an unknown functionality of the file ShareBox.php. The manipulation of the argument content/link/shares …
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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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Low 3.5
PHPCrazy cross site scripting
A vulnerability classified as problematic was found in PHPCrazy 1.1.1. This vulnerability affects unknown code of the file admin/admin.php?action=users&mode=info&user=2. The manipulation of the argument username leads to cross site scripting. The attack can b…
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Low 3.5
juju2143 WalrusIRC parser.js parseLinks cross site scripting
A vulnerability was found in juju2143 WalrusIRC 0.0.2. It has been rated as problematic. This issue affects the function parseLinks of the file public/parser.js. The manipulation of the argument text leads to cross site scripting. The attack may be initiated …
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Low 3.5
UDX Stateless Media Plugin class-settings.php setup_wizard_interface cross site scripting
A vulnerability was found in UDX Stateless Media Plugin 3.1.1 on WordPress. It has been declared as problematic. This vulnerability affects the function setup_wizard_interface of the file lib/classes/class-settings.php. The manipulation of the argument settin…
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Low 3.5
atwellpub Resend Welcome Email Plugin resend-welcome-email.php send_welcome_email_url cross site scripting
A vulnerability, which was classified as problematic, has been found in atwellpub Resend Welcome Email Plugin 1.0.1 on WordPress. This issue affects the function send_welcome_email_url of the file resend-welcome-email.php. The manipulation leads to cross site…
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Low 3.5
SourceCodester Online Eyewear Shop POST Request Users.php registration cross site scripting
A vulnerability has been found in SourceCodester Online Eyewear Shop 1.0 and classified as problematic. Affected by this vulnerability is the function registration of the file oews/classes/Users.php of the component POST Request Handler. The manipulation of t…
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Low 2.6
Custom-Content-Width custom-content-width.php register_settings cross site scripting
A vulnerability was found in Custom-Content-Width 1.0. It has been declared as problematic. Affected by this vulnerability is the function override_content_width/register_settings of the file custom-content-width.php. The manipulation leads to cross site scri…
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Low 3.5
OpenSeaMap online_chart index.php init cross site scripting
A vulnerability was found in OpenSeaMap online_chart 1.2. It has been classified as problematic. Affected is the function init of the file index.php. The manipulation of the argument mtext leads to cross site scripting. It is possible to launch the attack rem…
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Low 3.5
WangGuard Plugin WGG User List wangguard-user-info.php wangguard_users_info cross site scripting
A vulnerability, which was classified as problematic, has been found in WangGuard Plugin 1.8.0 on WordPress. Affected by this issue is the function wangguard_users_info of the file wangguard-user-info.php of the component WGG User List Handler. The manipulati…
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Low 3.5
tinymighty WikiSEO Meta Property Tag WikiSEO.body.php modifyHTML cross site scripting
A vulnerability, which was classified as problematic, was found in tinymighty WikiSEO 1.2.1 on MediaWiki. This affects the function modifyHTML of the file WikiSEO.body.php of the component Meta Property Tag Handler. The manipulation of the argument content le…
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Low 3.5
eXo Chat Application Mention ExoChatMessageComposer.vue cross site scripting
A vulnerability classified as problematic has been found in eXo Chat Application. Affected is an unknown function of the file application/src/main/webapp/vue-app/components/ExoChatMessageComposer.vue of the component Mention Handler. The manipulation leads to…
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Low 3.5
ciubotaru share-on-diaspora new_window.php cross site scripting
A vulnerability classified as problematic was found in ciubotaru share-on-diaspora 0.7.9. This vulnerability affects unknown code of the file new_window.php. The manipulation of the argument title/url leads to cross site scripting. The attack can be initiated…
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Low 2.6
DaSchTour matomo-mediawiki-extension Username Piwik.hooks.php cross site scripting
A vulnerability classified as problematic has been found in DaSchTour matomo-mediawiki-extension up to 2.4.2 on MediaWiki. This affects an unknown part of the file Piwik.hooks.php of the component Username Handler. The manipulation leads to cross site scripti…
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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'…
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Low 3.5
NREL api-umbrella-web Flash Message cross site scripting
A vulnerability classified as problematic was found in NREL api-umbrella-web 0.7.1. This vulnerability affects unknown code of the component Flash Message Handler. The manipulation leads to cross site scripting. The attack can be initiated remotely. Upgrading…
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Low 2.4CVE-2023-0676 Scanner template
Cross-site Scripting (XSS) - Reflected in phpipam/phpipam
Cross-site Scripting (XSS) - Reflected in GitHub repository phpipam/phpipam prior to 1.5.1.
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Low 3.5
YAFNET Signature cross site scripting
A vulnerability was found in YAFNET up to 3.1.11 and classified as problematic. This issue affects some unknown processing of the component Signature Handler. The manipulation leads to cross site scripting. The attack may be initiated remotely. The exploit ha…