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OpenAdvisories

Weakness (CWE)

CWE-79: Cross-site Scripting

Base Improper Neutralization of Input During Web Page Generation

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)

  1. 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.

  2. 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.

  3. 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.

  4. 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.

  5. 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.

  6. 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.

  7. Implementation

    With Struts, write all data from form beans with the bean's filter attribute set to true.

  8. 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

All Critical High Medium Low Exploited only Public exploit

32,779 results · Feed

  • High 7.1
    CVE-2026-114527

    UI Icons - Critical - Cross site scripting - SA-CONTRIB-2026-221

    Improper Neutralization of Input During Web Page Generation ("Cross-site Scripting") vulnerability in Drupal UI Icons allows Cross-Site Scripting (XSS). This issue affects UI Icons versions: from 0.0.0 to 1.1.3, from 2.0.0 to 2.0.2.

    Drupal UI Icons drupal/ui_icons Packagist
  • High 7.1
    CVE-2026-114528

    Zero Point - Critical - Cross-site scripting - SA-CONTRIB-2026-222

    Improper Neutralization of Input During Web Page Generation ("Cross-site Scripting") vulnerability in Drupal Zero Point allows Stored XSS. This issue affects Zero Point versions: from 0.0.0 to 1.30.0, from 2.0.0 to 2.0.1.

    Drupal Zero Point drupal/zeropoint Packagist
  • High 7.1
    CVE-2026-114526

    Black Hole - Critical - Cross-site scripting - SA-CONTRIB-2026-223

    Improper Neutralization of Input During Web Page Generation ("Cross-site Scripting") vulnerability in Drupal Black Hole allows Stored XSS. This issue affects Black Hole versions: from 0.0.0 to 1.26.0, from 2.0.0 to 2.0.1.

    Drupal Black Hole drupal/black_hole Packagist
  • High 7.1
    CVE-2026-114525

    ABC - Critical - Cross-site scripting - SA-CONTRIB-2026-224

    Improper Neutralization of Input During Web Page Generation ("Cross-site Scripting") vulnerability in Drupal ABC allows Stored XSS. This issue affects ABC versions: from 0.0.0 to 1.25.0, from 2.0.0 to 2.0.1.

    Drupal ABC drupal/abc Packagist
  • Medium 6.5
    CVE-2026-114529

    CSV Field - Moderately critical - Cross site Scripting - SA-CONTRIB-2026-226

    Improper Neutralization of Input During Web Page Generation ("Cross-site Scripting") vulnerability in Drupal CSV Field allows Stored XSS. This issue affects CSV Field versions: from 0.0.0 to 2.0.10, from 3.0.0 to 3.0.7.

    Drupal CSV Field drupal/csv_field Packagist
  • Medium 6.5
    CVE-2026-114531

    Swiper formatter - Moderately critical - Cross-site scripting - SA-CONTRIB-2026-228

    Improper Neutralization of Input During Web Page Generation ("Cross-site Scripting") vulnerability in Drupal Swiper formatter allows Stored XSS. This issue affects Swiper formatter versions: from 0.0.0 to 2.1.2, from 3.0.1 to 3.1.0.

    Drupal Swiper formatter drupal/swiper_formatter Packagist
  • Medium 6.5
    CVE-2026-107260

    Sector Distribution - Moderately critical - Cross-site scripting - SA-CONTRIB-2026-229

    Improper Neutralization of Input During Web Page Generation ("Cross-site Scripting") vulnerability in Drupal Sector Distribution allows Stored XSS. This issue affects Sector Distribution versions: from 0.0.0 to 10.3.3, from 10.4.0 to 10.4.2.

    Drupal Sector Distribution drupal/sector Packagist
  • Medium 6.5
    CVE-2026-114532

    UI Icons - Moderately critical - Cross-site scripting - SA-CONTRIB-2026-230

    Improper Neutralization of Input During Web Page Generation ("Cross-site Scripting") vulnerability in Drupal UI Icons allows Cross-Site Scripting (XSS). This issue affects UI Icons versions: from 0.0.0 to 1.1.3, from 2.0.0 to 2.0.2.

    Drupal UI Icons drupal/ui_icons Packagist
  • Medium 5.9
    CVE-2026-114534

    Block Attributes - Moderately critical - Cross site Scripting - SA-CONTRIB-2026-232

    Improper Neutralization of Input During Web Page Generation ("Cross-site Scripting") vulnerability in Drupal Block Attributes allows Stored XSS. This issue affects Block Attributes versions: from 0.0.0 to 2.1.0.

    Drupal Block Attributes drupal/block_attributes Packagist
  • Medium 6.5
    CVE-2026-114536

    USWDS Paragraph Components - Moderately critical - Cross site scripting - SA-CONTRIB-2026-234

    Improper Neutralization of Input During Web Page Generation ("Cross-site Scripting") vulnerability in Drupal USWDS Paragraph Components allows Stored XSS. This issue affects USWDS Paragraph Components versions: from 0.0.0 to 3.1.3.

    Drupal USWDS Paragraph Components drupal/uswds_paragraph_components Packagist
  • High 7.1
    CVE-2026-114538

    Bootstrap - Moderately critical - Cross-site scripting - SA-CONTRIB-2026-236

    Improper Neutralization of Input During Web Page Generation ("Cross-site Scripting") vulnerability in Drupal Bootstrap allows Cross-Site Scripting (XSS). This issue affects Bootstrap versions: from 0.0.0 to 3.45.0.

    Drupal Bootstrap drupal/bootstrap debootstrap Azure Linux Packagist
  • Low 3.5
    CVE-2026-114555

    Data field - Moderately critical - Cross site scripting - SA-CONTRIB-2026-250

    Improper Neutralization of Input During Web Page Generation ("Cross-site Scripting") vulnerability in Drupal Data field allows Stored XSS. This issue affects Data field versions: from 0.0.0 to 2.0.14.

    Drupal Data field drupal/datafield Packagist
  • Medium 5.1
    CVE-2026-118560

    Commerce Stripe - Moderately critical - Cross site scripting - SA-CONTRIB-2026-265

    Improper Neutralization of Input During Web Page Generation ("Cross-site Scripting") vulnerability in Drupal Commerce Stripe allows Cross-Site Scripting (XSS). This issue affects Commerce Stripe versions: from 2.0.0 to 2.2.3.

    Drupal Commerce Stripe drupal/commerce_stripe Packagist
  • Medium 6.5
    CVE-2026-118545

    AI (Artificial Intelligence) - Moderately critical - Cross-site scripting - SA-CONTRIB-2026-266

    Improper Neutralization of Input During Web Page Generation ("Cross-site Scripting") vulnerability in Drupal AI (Artificial Intelligence) allows Cross-Site Scripting (XSS). This issue affects AI (Artificial Intelligence) versions: from 0.0.0 to 1.4.11, from 1…

    Drupal AI (Artificial Intelligence) drupal/ai Packagist
  • Medium 6.5
    CVE-2026-118546

    AI (Artificial Intelligence) - Moderately critical - Cross-site scripting - SA-CONTRIB-2026-267

    Improper Neutralization of Input During Web Page Generation ("Cross-site Scripting") vulnerability in Drupal AI (Artificial Intelligence) allows Cross-Site Scripting (XSS). This issue affects AI (Artificial Intelligence) versions: from 0.0.0 to 1.4.11, from 1…

    Drupal AI (Artificial Intelligence) drupal/ai Packagist
  • High 7.1
    CVE-2026-118549

    AI (Artificial Intelligence) - Critical - Cross-site scripting - SA-CONTRIB-2026-269

    Improper Neutralization of Input During Web Page Generation ("Cross-site Scripting") vulnerability in Drupal AI (Artificial Intelligence) allows Cross-Site Scripting (XSS). This issue affects AI (Artificial Intelligence) versions: from 0.0.0 to 1.4.11, from 1…

    Drupal AI (Artificial Intelligence) drupal/ai Packagist
  • Medium 6.5
    CVE-2026-118552

    AI (Artificial Intelligence) - Moderately critical - Cross-site scripting - SA-CONTRIB-2026-272

    Improper Neutralization of Input During Web Page Generation ("Cross-site Scripting") vulnerability in Drupal AI (Artificial Intelligence) allows Cross-Site Scripting (XSS). This issue affects AI (Artificial Intelligence) versions: from 0.0.0 to 1.4.11, from 1…

    Drupal AI (Artificial Intelligence) drupal/ai Packagist
  • Medium 5.5
    CVE-2026-118553

    AI (Artificial Intelligence) - Moderately critical - Cross-site scripting - SA-CONTRIB-2026-273

    Improper Neutralization of Input During Web Page Generation ("Cross-site Scripting") vulnerability in Drupal AI (Artificial Intelligence) allows Stored XSS. This issue affects AI (Artificial Intelligence) versions: from 0.0.0 to 1.4.11, from 1.5.0 to 1.5.2.

    Drupal AI (Artificial Intelligence) drupal/ai Packagist
  • Medium 6.1
    CVE-2026-118575

    Signature pad widget - Critical - Cross-site scripting - SA-CONTRIB-2026-285

    Improper Neutralization of Input During Web Page Generation ("Cross-site Scripting") vulnerability in Drupal Signature pad widget allows Stored XSS. This issue affects Signature pad widget versions: from 0.0.0 to 1.15.0.

    Drupal Signature pad widget drupal/sign_widget Packagist
  • Medium 6.5
    CVE-2026-118576

    Stage File Proxy - Critical - Cross-site scripting - SA-CONTRIB-2026-286

    Improper Neutralization of Input During Web Page Generation ("Cross-site Scripting") vulnerability in Drupal Stage File Proxy allows Cross-Site Scripting (XSS). This issue affects Stage File Proxy versions: from 0.0.0 to 3.1.7, from 4.0.0 to 4.0.1.

    Drupal Stage File Proxy drupal/stage_file_proxy Packagist
  • Medium 5.4
    CVE-2026-117182 Public exploit

    An authenticated cross-site scripting (XSS) vulnerability in the /spina/embeddable.rb component of Spina CMS v2.21.0 al…

  • Medium 6.1
    CVE-2026-37468

    Cross Site Scripting vulnerability in BeeHome MyBeeHome before 2025-11-01 allows a remote attacker to execute arbitrary…

  • High 8.9
    CVE-2026-61719

    WeGIA: Stored Cross-Site Scripting (XSS) in "historico_prontuarios.php" via "textoProntuario" Field

    WeGIA is a web manager for charitable institutions. Prior to 3.8.7, a stored cross-site scripting vulnerability in `saude/historico_prontuarios.php` arises because the `textoProntuario` field accepts arbitrary HTML or JavaScript without proper sanitization. A…

    LabRedesCefetRJ WeGIA
  • Medium 6.3
    CVE-2026-61673

    WeGIA: Stored DOM XSS in listar_despachos.php Allows Account Takeover

    WeGIA is a web manager for charitable institutions. Prior to 3.8.7, a stored DOM cross-site scripting vulnerability in `web/html/memorando/listar_despachos.php` results from unsafe handling of the `texto` field. The affected flow spans `web/controle/memorando…

    LabRedesCefetRJ WeGIA
  • High 7.1
    CVE-2026-108494

    WordPress Chained Quiz plugin <= 1.4.1 - Cross Site Scripting (XSS) vulnerability

    Unauthenticated Cross Site Scripting (XSS) in Chained Quiz <= 1.4.1 versions.

    Bob Chained Quiz
  • High 7.1
    CVE-2026-61993

    WordPress Blockonomics plugin 3.11.0 - Cross Site Scripting (XSS) vulnerability

    Unauthenticated Cross Site Scripting (XSS) in Blockonomics 3.11.0 versions.

    blockonomics Blockonomics
  • High 7.1
    CVE-2026-61995

    WordPress YouTube Showcase plugin <= 4.1.0 - Cross Site Scripting (XSS) vulnerability

    Unauthenticated Cross Site Scripting (XSS) in YouTube Showcase <= 4.1.0 versions.

    emarket-design YouTube Showcase
  • High 7.1
    CVE-2026-61989 Public exploit

    WordPress Easy Property Listings plugin <= 3.5.25 - Cross Site Scripting (XSS) vulnerability

    Unauthenticated Cross Site Scripting (XSS) in Easy Property Listings <= 3.5.25 versions.

    Merv Barrett Easy Property Listings
  • High 7.1
    CVE-2026-61988

    WordPress Auction Nudge – Your eBay on Your Site plugin <= 8.4.0 - Cross Site Scripting (XSS) vulnerability

    Unauthenticated Cross Site Scripting (XSS) in Auction Nudge – Your eBay on Your Site <= 8.4.0 versions.

    morehawes Auction Nudge – Your eBay on Your Site
  • High 7.1
    CVE-2026-54866

    WordPress Razorpay Payment Button Elementor Plugin plugin <= 1.2.8 - Cross Site Scripting (XSS) vulnerability

    Unauthenticated Cross Site Scripting (XSS) in Razorpay Payment Button Elementor Plugin <= 1.2.8 versions.

    Razorpay Razorpay Payment Button Elementor Plugin
  • Medium 6.5
    CVE-2026-54865

    WordPress Podamibe Custom User Gravatar plugin <= 1.0.8 - Cross Site Scripting (XSS) vulnerability

    Subscriber Cross Site Scripting (XSS) in Podamibe Custom User Gravatar <= 1.0.8 versions.

    Podamibe Nepal Podamibe Custom User Gravatar
  • High 7.1
    CVE-2026-54864

    WordPress Post Video Players plugin <= 1.165 - Cross Site Scripting (XSS) vulnerability

    Unauthenticated Cross Site Scripting (XSS) in Post Video Players <= 1.165 versions.

    nicashmu Post Video Players
  • High 7.1
    CVE-2026-42692

    WordPress WP Crowdfunding plugin <= 2.2.2 - Cross Site Scripting (XSS) vulnerability

    Unauthenticated Cross Site Scripting (XSS) in WP Crowdfunding <= 2.2.2 versions.

    Themeum WP Crowdfunding
  • High 7.1
    CVE-2026-118085

    WordPress GlobalPayments WooCommerce plugin <= 1.23.3 - Cross Site Scripting (XSS) vulnerability

    Unauthenticated Cross Site Scripting (XSS) in GlobalPayments WooCommerce <= 1.23.3 versions.

    Global Payments GlobalPayments WooCommerce Web / CMS
  • High 7.1
    CVE-2026-27394

    WordPress Eventer plugin <= 0.1.1 - Reflected Cross Site Scripting (XSS) vulnerability

    Unauthenticated Cross Site Scripting (XSS) in Eventer <= 0.1.1 versions.

    Jyothis Joy Eventer
  • Medium 5.3
    CVE-2026-66912

    Stored Cross-Site Scripting in Zimbra

    Zimbra is vulnerable to Stored Cross-Site Scripting (XSS) via the From email header during HTML reply composition in Classic UI. Due to insufficient sanitization of the From header value, a remote attacker can send a crafted email containing a malicious From …

    Synacor Zimbra Collaboration
  • Medium 5.3
    CVE-2026-66911

    Stored Cross-Site Scripting in Zimbra

    Zimbra is vulnerable to stored cross-site scripting (XSS) via the Content-Location MIME header in email attachments. Due to lack of sanitization of the Content-Location header, an attacker can set it to a javascript: URI. An unauthenticated remote attacker ca…

    Synacor Zimbra Collaboration
  • Medium 6.5
    CVE-2026-116848

    WordPress The Plus Addons for Elementor Page Builder Lite plugin <= 6.5.3 - Cross Site Scripting (XSS) vulnerability

    Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') vulnerability in POSIMYTH Innovations The Plus Addons for Elementor Page Builder Lite the-plus-addons-for-elementor-page-builder allows Stored XSS.This issue affects The Plus…

    POSIMYTH Innovations The Plus Addons for Elementor Page Builder Lite
  • Medium 6.5
    CVE-2026-118097

    WordPress Flash & HTML5 Video plugin <= 2.14.0 - Cross Site Scripting (XSS) vulnerability

    Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') vulnerability in bPlugins Flash & HTML5 Video html5-video-player allows Stored XSS.This issue affects Flash & HTML5 Video: from n/a through 2.14.0.

    bPlugins Flash & HTML5 Video
  • Medium 6.5
    CVE-2026-114706

    WordPress Strong Testimonials plugin <= 3.3.15 - Cross Site Scripting (XSS) vulnerability

    Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') vulnerability in WP Chill Strong Testimonials strong-testimonials allows Stored XSS.This issue affects Strong Testimonials: from n/a through 3.3.15.

    WP Chill Strong Testimonials