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)
-
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.
-
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.
-
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.
-
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.
-
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.
-
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.
-
Implementation
With Struts, write all data from form beans with the bean's filter attribute set to true.
-
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
6,268 results · Clear filters · Feed
-
High 7.1
WordPress UDesign Core plugin <= 4.14.0 - Cross Site Scripting (XSS) vulnerability
Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') vulnerability in AndonDesign UDesign Core u-design-core allows Reflected XSS.This issue affects UDesign Core: from n/a through <= 4.14.0.
-
High 7.1
WordPress MultiSite Clone Duplicator plugin <= 1.5.3 - Cross Site Scripting (XSS) vulnerability
Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') vulnerability in Globalis MultiSite Clone Duplicator multisite-clone-duplicator allows Reflected XSS.This issue affects MultiSite Clone Duplicator: from n/a through <= 1.5.3.
-
High 7.1
WordPress Nifty Backups plugin <= 1.08 - Cross Site Scripting (XSS) vulnerability
Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') vulnerability in NickDuncan Nifty Backups nifty-backups allows Reflected XSS.This issue affects Nifty Backups: from n/a through <= 1.08.
-
High 7.1
WordPress Hello Followers plugin <= 2.5 - Cross Site Scripting (XSS) vulnerability
Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') vulnerability in appscreo Hello Followers hellofollowers allows Reflected XSS.This issue affects Hello Followers: from n/a through <= 2.5.
-
High 7.1
WordPress Child Themes plugin <= 1.0.1 - Cross Site Scripting (XSS) vulnerability
Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') vulnerability in Chris Taylor Child Themes child-themes allows Reflected XSS.This issue affects Child Themes: from n/a through <= 1.0.1.
-
High 7.1
WordPress Contact Form by Supsystic plugin <= 1.7.36 - Cross Site Scripting (XSS) vulnerability
Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') vulnerability in supsystic Contact Form by Supsystic contact-form-by-supsystic allows Reflected XSS.This issue affects Contact Form by Supsystic: from n/a through <= 1.7.36.
-
High 7.1
WordPress Sello ChannelConnector plugin <= 1.6.3 - Cross Site Scripting (XSS) vulnerability
Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') vulnerability in selloio Sello ChannelConnector sello-channelconnector allows Reflected XSS.This issue affects Sello ChannelConnector: from n/a through <= 1.6.3.
-
High 7.1
WordPress Uji Countdown plugin <= 2.3.3 - Cross Site Scripting (XSS) vulnerability
Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') vulnerability in Activity Track Uji Countdown uji-countdown allows Reflected XSS.This issue affects Uji Countdown: from n/a through <= 2.3.3.
-
High 7.1
WordPress oik-privacy-policy plugin <= 1.4.10 - Cross Site Scripting (XSS) vulnerability
Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') vulnerability in bobbingwide oik-privacy-policy oik-privacy-policy allows Reflected XSS.This issue affects oik-privacy-policy: from n/a through <= 1.4.10.
-
High 7.1
WordPress Emu2 plugin <= 0.83b - Cross Site Scripting (XSS) vulnerability
Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') vulnerability in Juergen Schulze Emu2 emu2-email-users-2 allows Reflected XSS.This issue affects Emu2: from n/a through <= 0.83b.
-
High 7.1
WordPress Slide Puzzle plugin <= 1.0.0 - Cross Site Scripting (XSS) vulnerability
Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') vulnerability in colome Slide Puzzle slide-puzzle allows Reflected XSS.This issue affects Slide Puzzle: from n/a through <= 1.0.0.
-
High 7.1
WordPress Directory Pro plugin <= 2.5.5 - Cross Site Scripting (XSS) Vulnerability
Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') vulnerability in e-plugins Directory Pro directory-pro allows Reflected XSS.This issue affects Directory Pro: from n/a through <= 2.5.5.
-
High 7.1
WordPress Pets Plugin <= 1.4.1 - Cross Site Scripting (XSS) Vulnerability
Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') vulnerability in Igor Benic Pets pets allows Reflected XSS.This issue affects Pets: from n/a through <= 1.4.1.
-
High 7.1
WordPress Post Connector Plugin <= 1.0.11 - Cross Site Scripting (XSS) Vulnerability
Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') vulnerability in Barry Kooij Post Connector post-connector allows Reflected XSS.This issue affects Post Connector: from n/a through <= 1.0.11.
-
High 7.1
WordPress Finale Lite Plugin <= 2.20.0 - Cross Site Scripting (XSS) Vulnerability
Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') vulnerability in Daman Jeet Finale Lite finale-woocommerce-sales-countdown-timer-discount allows Reflected XSS.This issue affects Finale Lite: from n/a through <= 2.20.0.
-
High 7.1
WordPress NextMove Lite plugin <= 2.24.0 - Cross Site Scripting (XSS) vulnerability
Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') vulnerability in XLPlugins NextMove Lite woo-thank-you-page-nextmove-lite allows Reflected XSS.This issue affects NextMove Lite: from n/a through <= 2.24.0.
-
High 7.1
WordPress CropRefine Plugin <= 1.2.1 - Cross Site Scripting (XSS) Vulnerability
Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') vulnerability in ERA404 CropRefine croprefine allows Reflected XSS.This issue affects CropRefine: from n/a through <= 1.2.1.
-
High 7.1
WordPress Simple Stripe Checkout plugin <= 1.1.28 - Cross Site Scripting (XSS) vulnerability
Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') vulnerability in growniche Simple Stripe Checkout simple-stripe-checkout allows Reflected XSS.This issue affects Simple Stripe Checkout: from n/a through <= 1.1.28.
-
High 7.1
WordPress LearnPress Export Import plugin <= 4.0.9 - Cross Site Scripting (XSS) vulnerability
Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') vulnerability in ThimPress LearnPress Export Import learnpress-import-export allows Reflected XSS.This issue affects LearnPress Export Import: from n/a through <= 4.0.9.
-
High 7.1
WordPress bbPress Notify plugin <= 2.19.5 - Cross Site Scripting (XSS) vulnerability
Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') vulnerability in useStrict bbPress Notify bbpress-notify-nospam allows Reflected XSS.This issue affects bbPress Notify: from n/a through <= 2.19.5.
-
High 7.1
WordPress bbPress Move Topics plugin <= 1.1.6 - Cross Site Scripting (XSS) vulnerability
Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') vulnerability in Pascal Casier bbPress Move Topics bbp-move-topics allows Reflected XSS.This issue affects bbPress Move Topics: from n/a through <= 1.1.6.
-
High 7.1
WordPress Email Attachment by Order Status & Products Plugin <= 1.0.1 - Cross Site Scripting (XSS) Vulnerability
Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') vulnerability in Weboccult Technologies Pvt Ltd Email Attachment by Order Status & Products email-attachment-by-order-status-products allows Reflected XSS.This issue affects …
-
High 7.1
WordPress Robokassa payment gateway for Woocommerce plugin <= 1.8.6 - Cross Site Scripting (XSS) vulnerability
Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') vulnerability in robokassa Robokassa payment gateway for Woocommerce robokassa allows Reflected XSS.This issue affects Robokassa payment gateway for Woocommerce: from n/a thr…
-
High 7.1
WordPress WP Smart Flexslider Plugin <= 2.5 - Cross Site Scripting (XSS) Vulnerability
Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') vulnerability in Rajan Vijayan WP Smart Flexslider wp-smart-flexslider allows Reflected XSS.This issue affects WP Smart Flexslider: from n/a through <= 2.5.
-
High 7.1
WordPress Fade Slider plugin <= 2.5 - Cross Site Scripting (XSS) vulnerability
Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') vulnerability in Anandaraj Balu Fade Slider fade-slider allows Reflected XSS.This issue affects Fade Slider: from n/a through <= 2.5.
-
High 7.1
WordPress gAppointments Plugin <= 1.14.1 - Cross Site Scripting (XSS) Vulnerability
Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') vulnerability in wpcrunch gAppointments gAppointments allows Reflected XSS.This issue affects gAppointments: from n/a through <= 1.14.1.
-
High 7.1
WordPress ShareBang, Ultimate Social Share Buttons for WordPress Plugin <= 1.4 - Cross Site Scripting (XSS) Vulnerability
Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') vulnerability in themeinity ShareBang, Ultimate Social Share Buttons for WordPress sharebang allows Reflected XSS.This issue affects ShareBang, Ultimate Social Share Buttons …
-
High 7.1
WordPress WP-Click-Tracker Plugin <= 0.7.3 - Cross Site Scripting (XSS) Vulnerability
Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') vulnerability in mithra62 WP-Click-Tracker wp-click-track allows Reflected XSS.This issue affects WP-Click-Tracker: from n/a through <= 0.7.3.
-
High 7.1
WordPress WooCommerce Registration Fields Plugin - Custom Signup Fields plugin <= 3.2.3 - Cross Site Scripting (XSS) vulnerability
Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') vulnerability in extendons WooCommerce Registration Fields Plugin - Custom Signup Fields extendons-registration-fields allows Reflected XSS.This issue affects WooCommerce Reg…
-
High 7.1
WordPress WP Super Edit plugin <= 2.5.4 - Cross Site Scripting (XSS) Vulnerability
Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') vulnerability in Ahmad Awais WP Super Edit wp-super-edit allows Reflected XSS.This issue affects WP Super Edit: from n/a through <= 2.5.4.
-
High 7.1
WordPress Shortcode Generator plugin <= 1.1 - Cross Site Scripting (XSS) vulnerability
Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') vulnerability in kylegetson Shortcode Generator shortcode-generator allows Reflected XSS.This issue affects Shortcode Generator: from n/a through <= 1.1.
-
High 7.1
WordPress Auto Login After Registration plugin <= 1.0.0 - Cross Site Scripting (XSS) vulnerability
Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') vulnerability in Cynob IT Consultancy Auto Login After Registration auto-login-after-registration allows Reflected XSS.This issue affects Auto Login After Registration: from …
-
High 7.1
WordPress WPCode Content Ratio plugin <= 2.0 - Cross Site Scripting (XSS) vulnerability
Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') vulnerability in Jonatan Jumbert WPCode Content Ratio wpcode-content-ratio allows Reflected XSS.This issue affects WPCode Content Ratio: from n/a through <= 2.0.
-
High 7.1
WordPress JetSearch plugin <= 3.5.10 - Cross Site Scripting (XSS) vulnerability
Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') vulnerability in Crocoblock JetSearch jet-search allows Reflected XSS.This issue affects JetSearch: from n/a through <= 3.5.10.
-
High 7.1
WordPress WooCommerce Vehicle Parts Finder plugin <= 3.7 - Cross Site Scripting (XSS) vulnerability
Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') vulnerability in wpinstinct WooCommerce Vehicle Parts Finder woo-vehicle-parts-finder allows Reflected XSS.This issue affects WooCommerce Vehicle Parts Finder: from n/a throu…
-
High 7.1
WordPress Survey Maker plugin <= 5.1.8.8 - Cross Site Scripting (XSS) vulnerability
Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') vulnerability in Ays Pro Survey Maker survey-maker allows Stored XSS.This issue affects Survey Maker: from n/a through <= 5.1.8.8.
-
High 7.1
WordPress WSAnalytics plugin <= 1.1.2 - Reflected Cross Site Scripting (XSS) vulnerability
Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') vulnerability in Shiva WSAnalytics wsanalytics-google-analytics-and-dashboards allows Reflected XSS.This issue affects WSAnalytics: from n/a through <= 1.1.2.
-
High 7.1
WordPress Password only login plugin <= 0.2 - Reflected Cross Site Scripting (XSS) vulnerability
Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') vulnerability in Calvaweb Password only login password-only-login allows Reflected XSS.This issue affects Password only login: from n/a through <= 0.2.
-
High 7.1
WordPress Fix Multiple Redirects plugin <= 1.2.3 - Reflected Cross Site Scripting (XSS) vulnerability
Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') vulnerability in jurajpuchky Fix Multiple Redirects fix-multiple-redirects allows Reflected XSS.This issue affects Fix Multiple Redirects: from n/a through <= 1.2.3.
-
High 7.1
WordPress Terms Dictionary Plugin <= 1.5.1 - Reflected Cross Site Scripting (XSS) vulnerability
Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') vulnerability in Somonator Terms Dictionary terms-dictionary allows Reflected XSS.This issue affects Terms Dictionary: from n/a through <= 1.5.1.