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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

6,268 results · Clear filters · Feed

  • High 8.0
    CVE-2026-11903

    Stored XSS in MOVEit Transfer Ad Hoc module

    Improper neutralization of input during web page generation ('cross-site scripting') vulnerability in Progress MOVEit Transfer (Ad Hoc module). This issue affects MOVEit Transfer: from 2026.0.0 before 2026.0.1, from 2025.1.0 before 2025.1.4, from 2025.0.0 bef…

    Progress Software MOVEit Transfer
  • High 7.1
    CVE-2026-41122

    Dell PowerProtect Data Domain, versions 7.7.1.0 through 8.7, LTS2026 release version 8.6.1.0 through 8.6.1.10, LTS2025 …

    Dell PowerProtect Data Domain
  • High 7.2
    CVE-2026-6820

    VikBooking Hotel Booking Engine & PMS <= 1.8.8 - Unauthenticated Stored Cross-Site Scripting via Booking Form Email Field

    The VikBooking Hotel Booking Engine & PMS plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the 'email' parameter in all versions up to, and including, 1.8.8 due to insufficient input sanitization and output escaping. This makes it possibl…

    e4jvikwp VikBooking Hotel Booking Engine & PMS Web / CMS
  • High 7.2
    CVE-2026-6818

    VikBooking Hotel Booking Engine & PMS <= 1.8.8 - Unauthenticated Stored Cross-Site Scripting via 'special_requests' Parameter

    The VikBooking Hotel Booking Engine & PMS plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the 'special_requests' parameter in all versions up to, and including, 1.8.8 due to insufficient input sanitization and output escaping. This makes…

    e4jvikwp VikBooking Hotel Booking Engine & PMS Web / CMS
  • High 8.2
    CVE-2025-53831

    DrawIO for ownCloud 10 is vulnerable to Stored XSS

    DrawIO for ownCloud is an application for using DrawIO with the file storage, synchronization, and sharing application ownCloud Classic. In DrawIO for ownCloud prior to version 1.0.2, which corresponds to ownCloud 10 prior to version 10.15.3, attackers with a…

    OwnCloud ownCloud 10 DrawIO for ownCloud
  • High 7.2
    CVE-2026-58298

    Microsoft Edge (Chromium-based) Spoofing Vulnerability

    Improper neutralization of input during web page generation ('cross-site scripting') in Microsoft Edge (Chromium-based) allows an unauthorized attacker to perform spoofing over a network.

    Microsoft Microsoft Edge (Chromium-based) Browsers
  • High 7.1
    CVE-2026-57977

    Microsoft Edge (Chromium-based) Spoofing Vulnerability

    Improper neutralization of input during web page generation ('cross-site scripting') in Microsoft Edge (Chromium-based) allows an unauthorized attacker to perform spoofing over a network.

    Microsoft Microsoft Edge (Chromium-based) Browsers
  • High 8.7
    CVE-2026-28737

    Gitea 3D file viewer allows stored XSS through glTF extensionsRequired

    Gitea versions from 1.25.0 before 1.26.0 allow stored cross-site scripting through the extensionsRequired field in glTF files rendered by the 3D file viewer.

    Gitea Gitea Open Source Git Server code.gitea.io/gitea Go
  • High 7.2
    CVE-2026-9148

    Comments <= 7.6.56 - Unauthenticated Stored Cross-Site Scripting via 'Website' Field

    The Comments – wpDiscuz plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the guest commenter 'Website' field in versions up to, and including, 7.6.56 This is due to insufficient output escaping in the getCommentAuthor() function, which in…

    advancedcoding Comments – wpDiscuz Web / CMS
  • High 7.2
    CVE-2026-13040

    NEX-Forms <= 9.2.2 - Unauthenticated Stored Cross-Site Scripting via 'real_val__' Parameter

    The NEX-Forms – Ultimate Forms Plugin for WordPress plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the 'real_val__' parameter in all versions up to, and including, 9.2.2 due to insufficient input sanitization and output escaping. This m…

    webaways NEX-Forms – Ultimate Forms Plugin for WordPress Web / CMS
  • High 7.0
    CVE-2026-8699

    Stored Cross-Site Scripting (XSS) in TP-Link Archer C5 Web Management Interface

    A stored Cross-Site Scripting (XSS) vulnerability has been identified in the web-based management interface of Archer C5 v6.8 routers, due to insufficient server-side validation and lack of proper output encoding of user-controlled input in a certain field.  …

    TP-Link Systems Archer C5 v6.8 Network devices
  • High 7.1
    CVE-2026-57678

    WordPress Slider Revolution plugin 7.0.0-7.0.16 - Cross Site Scripting (XSS) vulnerability

    Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') vulnerability in ThemePunch Slider Revolution allows Reflected XSS. This issue affects Slider Revolution: from 7.0.0 through 7.0.16.

    ThemePunch Slider Revolution
  • High 7.1
    CVE-2026-57686

    WordPress WowAddons plugin <= 1.6.14 - Cross Site Scripting (XSS) vulnerability

    Unauthenticated Cross Site Scripting (XSS) in WowAddons <= 1.6.14 versions.

    wpxpo WowAddons
  • High 7.1
    CVE-2026-57682

    WordPress Simple Link Directory plugin <= 15.0.5 - Cross Site Scripting (XSS) vulnerability

    Unauthenticated Cross Site Scripting (XSS) in Simple Link Directory <= 15.0.5 versions.

    Quantum Cloud Simple Link Directory
  • High 7.1
    CVE-2026-57675

    WordPress WP Photo Album Plus plugin <= 9.2.02.004 - Cross Site Scripting (XSS) vulnerability

    Unauthenticated Cross Site Scripting (XSS) in WP Photo Album Plus <= 9.2.02.004 versions.

    Jacob N. Breetvelt WP Photo Album Plus
  • High 7.1
    CVE-2026-57674

    WordPress Timetics plugin <= 1.0.58 - Cross Site Scripting (XSS) vulnerability

    Unauthenticated Cross Site Scripting (XSS) in Timetics <= 1.0.58 versions.

    Arraytics Timetics
  • High 7.1
    CVE-2026-57673

    WordPress Optimole plugin <= 4.2.7 - Cross Site Scripting (XSS) vulnerability

    Unauthenticated Cross Site Scripting (XSS) in Optimole <= 4.2.7 versions.

    Optimole Optimole
  • High 7.1
    CVE-2026-57672

    WordPress wpDataTables plugin <= 6.5.1.1 - Cross Site Scripting (XSS) vulnerability

    Unauthenticated Cross Site Scripting (XSS) in wpDataTables <= 6.5.1.1 versions.

    Melograno Venture Studio wpDataTables
  • High 7.1
    CVE-2026-57671

    WordPress perfmatters plugin <= 2.6.4 - Cross Site Scripting (XSS) vulnerability

    Unauthenticated Cross Site Scripting (XSS) in perfmatters <= 2.6.4 versions.

    Perfmatters perfmatters
  • High 7.1
    CVE-2026-57670

    WordPress Google Maps CP plugin <= 1.2.5 - Cross Site Scripting (XSS) vulnerability

    Unauthenticated Cross Site Scripting (XSS) in Google Maps CP <= 1.2.5 versions.

    codepeople Google Maps CP
  • High 7.1
    CVE-2026-57426

    WordPress Modula - PRO plugin <= 2.10.8 - Cross Site Scripting (XSS) vulnerability

    Unauthenticated Cross Site Scripting (XSS) in Modula - PRO <= 2.10.8 versions.

    Chill Media Labs S.R.L. Modula - PRO
  • High 7.1
    CVE-2026-57366

    WordPress WPAdverts plugin <= 2.3.1 - Cross Site Scripting (XSS) vulnerability

    Unauthenticated Cross Site Scripting (XSS) in WPAdverts <= 2.3.1 versions.

    Greg Winiarski WPAdverts
  • High 7.1
    CVE-2026-57362

    WordPress ChatBot plugin <= 8.3.2 - Reflected Cross Site Scripting (XSS) vulnerability

    Unauthenticated Cross Site Scripting (XSS) in ChatBot <= 8.3.2 versions.

    Quantum Cloud ChatBot
  • High 7.1
    CVE-2026-57361

    WordPress Survey Maker plugin <= 5.2.2.5 - Cross Site Scripting (XSS) vulnerability

    Unauthenticated Cross Site Scripting (XSS) in Survey Maker <= 5.2.2.5 versions.

    Ays Pro Survey Maker
  • High 7.1
    CVE-2026-57360

    WordPress eCommerce Product Catalog plugin <= 3.5.4 - Cross Site Scripting (XSS) vulnerability

    Unauthenticated Cross Site Scripting (XSS) in eCommerce Product Catalog <= 3.5.4 versions.

    impleCode eCommerce Product Catalog
  • High 7.1
    CVE-2026-57359

    WordPress ReviewX plugin <= 2.3.10 - Cross Site Scripting (XSS) vulnerability

    Unauthenticated Cross Site Scripting (XSS) in ReviewX <= 2.3.10 versions.

    ReviewX ReviewX
  • High 7.1
    CVE-2026-57358

    WordPress Customize My Account for WooCommerce plugin <= 4.3.9 - Reflected Cross Site Scripting (XSS) vulnerability

    Unauthenticated Cross Site Scripting (XSS) in Customize My Account for WooCommerce <= 4.3.9 versions.

    SysBasics Customize My Account for WooCommerce Web / CMS
  • High 7.1
    CVE-2026-57357

    WordPress Search Atlas SEO plugin <= 2.6.6 - Reflected Cross Site Scripting (XSS) vulnerability

    Unauthenticated Cross Site Scripting (XSS) in Search Atlas SEO <= 2.6.6 versions.

    Search Atlas Group Search Atlas SEO
  • High 7.1
    CVE-2026-57356

    WordPress MC Woocommerce Wishlist plugin <= 1.9.19 - Cross Site Scripting (XSS) vulnerability

    Unauthenticated Cross Site Scripting (XSS) in MC Woocommerce Wishlist <= 1.9.19 versions.

    Moreconvert Team MC Woocommerce Wishlist Web / CMS
  • High 7.1
    CVE-2026-57351

    WordPress HandL UTM Grabber plugin <= 2.9.2 - Cross Site Scripting (XSS) vulnerability

    Unauthenticated Cross Site Scripting (XSS) in HandL UTM Grabber <= 2.9.2 versions.

    Haktan Suren HandL UTM Grabber
  • High 7.1
    CVE-2026-57350

    WordPress WP Debugging plugin <= 2.12.2 - Cross Site Scripting (XSS) vulnerability

    Unauthenticated Cross Site Scripting (XSS) in WP Debugging <= 2.12.2 versions.

    Andy Fragen WP Debugging
  • High 7.1
    CVE-2026-57349

    WordPress WPeMatico RSS Feed Fetcher plugin <= 2.8.17 - Cross Site Scripting (XSS) vulnerability

    Unauthenticated Cross Site Scripting (XSS) in WPeMatico RSS Feed Fetcher <= 2.8.17 versions.

    etruel WPeMatico RSS Feed Fetcher
  • High 7.1
    CVE-2026-57345

    WordPress Internal Links Manager plugin <= 3.0.3 - Cross Site Scripting (XSS) vulnerability

    Unauthenticated Cross Site Scripting (XSS) in Internal Links Manager <= 3.0.3 versions.

    Webraketen Internal Links Manager
  • High 7.1
    CVE-2026-57344

    WordPress Classified Listing plugin <= 5.4.2 - Cross Site Scripting (XSS) vulnerability

    Unauthenticated Cross Site Scripting (XSS) in Classified Listing <= 5.4.2 versions.

    RadiusTheme Classified Listing
  • High 7.1
    CVE-2026-57343

    WordPress Real Estate 7 theme <= 3.5.9 - Cross Site Scripting (XSS) vulnerability

    Unauthenticated Cross Site Scripting (XSS) in Real Estate 7 <= 3.5.9 versions.

    contempoinc Real Estate 7
  • High 7.1
    CVE-2026-27430

    WordPress TheFox theme <= 3.9.76 - Reflected Cross Site Scripting (XSS) vulnerability

    Unauthenticated Cross Site Scripting (XSS) in TheFox <= 3.9.76 versions.

    tranmautritam TheFox
  • High 7.1
    CVE-2026-27426

    WordPress Automotive Car Dealership Business theme <= 13.3.3 - Reflected Cross Site Scripting (XSS) vulnerability

    Unauthenticated Cross Site Scripting (XSS) in Automotive Car Dealership Business <= 13.3.3 versions.

    Themesuite Automotive Car Dealership Business
  • High 7.1
    CVE-2026-27425

    WordPress Automotive Listings plugin <= 18.6 - Reflected Cross Site Scripting (XSS) vulnerability

    Unauthenticated Cross Site Scripting (XSS) in Automotive Listings <= 18.6 versions.

    Themesuite Automotive Listings
  • High 7.1
    CVE-2026-27408

    WordPress NativeChurch theme < 4.9.5 - Cross Site Scripting (XSS) vulnerability

    Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') vulnerability in imithemes NativeChurch nativechurch allows Reflected XSS.This issue affects NativeChurch: from n/a before 4.9.5.

    imithemes NativeChurch
  • High 7.1
    CVE-2026-27404

    WordPress LMS theme <= 9.7 - Reflected Cross Site Scripting (XSS) vulnerability

    Unauthenticated Cross Site Scripting (XSS) in LMS <= 9.7 versions.

    Design themes LMS