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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 8.2
    CVE-2026-71445

    Authenticated Reflected Cross-Site Scripting in Tag Error Responses in ail-framework

    AIL Framework contained a reflected cross-site scripting vulnerability in the /tag/add_tags endpoint. When an error occurred while processing a tag operation, the application returned the error value directly as an HTML response using str(res[0]). If attacker…

    ail-project ail-framework
  • High 7.1
    CVE-2026-66711

    WordPress WooCommerce Multilingual & Multicurrency plugin <= 5.5.6 - Cross Site Scripting (XSS) vulnerability

    Subscriber Cross Site Scripting (XSS) in WooCommerce Multilingual & Multicurrency <= 5.5.6 versions.

    Amir Helzer WooCommerce Multilingual & Multicurrency Web / CMS
  • High 7.1
    CVE-2026-66707

    WordPress Facebook for WooCommerce plugin <= 3.7.5 - Cross Site Scripting (XSS) vulnerability

    Unauthenticated Cross Site Scripting (XSS) in Facebook for WooCommerce <= 3.7.5 versions.

    Facebook Facebook for WooCommerce Web / CMS
  • High 7.1
    CVE-2026-66705

    WordPress Facebook for WordPress plugin <= 5.2.1 - Cross Site Scripting (XSS) vulnerability

    Unauthenticated Cross Site Scripting (XSS) in Facebook for WordPress <= 5.2.1 versions.

    Facebook Facebook for WordPress Web / CMS
  • High 7.1
    CVE-2026-66702

    WordPress Rank Math SEO plugin <= 1.0.274.1 - Cross Site Scripting (XSS) vulnerability

    Unauthenticated Cross Site Scripting (XSS) in Rank Math SEO <= 1.0.274.1 versions.

    Rank Math SEO Rank Math SEO
  • High 7.1
    CVE-2026-66694

    WordPress Thrive Architect plugin <= 10.9.3.1 - Cross Site Scripting (XSS) vulnerability

    Unauthenticated Cross Site Scripting (XSS) in Thrive Architect <= 10.9.3.1 versions.

    Thrive Themes Coupon Thrive Architect
  • High 7.1
    CVE-2026-66690

    WordPress GiveWP plugin <= 4.16.5 - Cross Site Scripting (XSS) vulnerability

    Unauthenticated Cross Site Scripting (XSS) in GiveWP <= 4.16.5 versions.

    Nexcess GiveWP
  • High 7.1
    CVE-2026-66664

    WordPress SEO plugin by Squirrly SEO plugin <= 14.2.0 - Cross Site Scripting (XSS) vulnerability

    Unauthenticated Cross Site Scripting (XSS) in SEO Plugin by Squirrly SEO <= 14.2.0 versions.

    SEO Squirrly SEO Plugin by Squirrly SEO
  • High 7.1
    CVE-2026-66663

    WordPress WP Data Access plugin <= 5.5.79 - Cross Site Scripting (XSS) vulnerability

    Unauthenticated Cross Site Scripting (XSS) in WP Data Access <= 5.5.79 versions.

    Passionate Programmer Peter WP Data Access
  • High 7.1
    CVE-2026-66457

    WordPress Events Manager plugin <= 7.4.2 - Cross Site Scripting (XSS) vulnerability

    Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') vulnerability in Pixelite Events Manager events-manager allows Reflected XSS.This issue affects Events Manager: from n/a through 7.4.2.

    Pixelite Events Manager
  • High 7.1
    CVE-2026-66439

    WordPress Advanced AJAX Product Filters plugin <= 3.2.0.3 - Cross Site Scripting (XSS) vulnerability

    Unauthenticated Cross Site Scripting (XSS) in Advanced AJAX Product Filters <= 3.2.0.3 versions.

    BeRocket Advanced AJAX Product Filters
  • High 7.1
    CVE-2026-66440

    WordPress WPIDE – File Manager & Code Editor plugin <= 3.5.7 - Cross Site Scripting (XSS) vulnerability

    Unauthenticated Cross Site Scripting (XSS) in WPIDE – File Manager & Code Editor <= 3.5.7 versions.

    XplodedThemes WPIDE – File Manager & Code Editor
  • High 7.1
    CVE-2026-65565

    WordPress Survey Maker plugin <= 5.2.3.3 - Cross Site Scripting (XSS) vulnerability

    Unauthenticated Cross Site Scripting (XSS) in Survey Maker <= 5.2.3.3 versions.

    Ays Pro Survey Maker
  • High 7.1
    CVE-2026-65560

    WordPress Houzez Property Feed plugin <= 2.5.48 - Cross Site Scripting (XSS) vulnerability

    Unauthenticated Cross Site Scripting (XSS) in Houzez Property Feed <= 2.5.48 versions.

    Property Hive Houzez Property Feed
  • High 7.1
    CVE-2026-65545

    WordPress AI Engine plugin <= 3.6.8 - Cross Site Scripting (XSS) vulnerability

    Unauthenticated Cross Site Scripting (XSS) in AI Engine <= 3.6.8 versions.

    Jordy Meow AI Engine
  • High 7.1
    CVE-2026-65544

    WordPress Super Socializer plugin <= 7.14.5 - Cross Site Scripting (XSS) vulnerability

    Unauthenticated Cross Site Scripting (XSS) in Super Socializer <= 7.14.5 versions.

    Rajat Varlani Super Socializer
  • High 7.1
    CVE-2026-65517

    WordPress Easy PayPal Buy Now Button plugin <= 2.0.4 - Cross Site Scripting (XSS) vulnerability

    Unauthenticated Cross Site Scripting (XSS) in Easy PayPal Buy Now Button <= 2.0.4 versions.

    Scott Paterson Easy PayPal Buy Now Button
  • High 7.1
    CVE-2026-65515

    WordPress AffiliateWP plugin <= 2.35.0 - Cross Site Scripting (XSS) vulnerability

    Unauthenticated Cross Site Scripting (XSS) in AffiliateWP <= 2.35.0 versions.

    AffiliateWP AffiliateWP
  • High 7.1
    CVE-2026-65513

    WordPress Simply Schedule Appointments plugin <= 1.6.12.10 - Cross Site Scripting (XSS) vulnerability

    Unauthenticated Cross Site Scripting (XSS) in Simply Schedule Appointments <= 1.6.12.10 versions.

    N Squared Simply Schedule Appointments
  • High 7.1
    CVE-2026-65509

    WordPress wpDataTables plugin <= 7.5.1 - Cross Site Scripting (XSS) vulnerability

    Unauthenticated Cross Site Scripting (XSS) in wpDataTables <= 7.5.1 versions.

    wpDataTables wpDataTables
  • High 7.1
    CVE-2026-61964

    WordPress Ninja Tables plugin <= 5.2.9 - Cross Site Scripting (XSS) vulnerability

    Unauthenticated Cross Site Scripting (XSS) in Ninja Tables <= 5.2.9 versions.

    WP ManageNinja Ninja Tables
  • High 7.1
    CVE-2026-61982

    WordPress SiteGuard WP Plugin plugin <= 1.8.6 - Cross Site Scripting (XSS) vulnerability

    Unauthenticated Cross Site Scripting (XSS) in SiteGuard WP Plugin <= 1.8.6 versions.

    jp-secure SiteGuard WP Plugin
  • High 7.1
    CVE-2026-61963

    WordPress Media LIbrary Assistant plugin <= 3.38 - Cross Site Scripting (XSS) vulnerability

    Unauthenticated Cross Site Scripting (XSS) in Media LIbrary Assistant <= 3.38 versions.

    David Lingren Media LIbrary Assistant
  • High 7.1
    CVE-2026-61961

    WordPress EmbedPress plugin <= 4.5.6 - Cross Site Scripting (XSS) vulnerability

    Unauthenticated Cross Site Scripting (XSS) in EmbedPress <= 4.5.6 versions.

    WPDeveloper EmbedPress
  • High 7.1
    CVE-2026-28177

    WordPress Popup Maker plugin <= 1.23.0 - Cross Site Scripting (XSS) vulnerability

    Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') vulnerability in Code Atlantic LLC Popup Maker popup-maker allows DOM-Based XSS.This issue affects Popup Maker: from n/a through 1.23.0.

    Code Atlantic Popup Maker
  • High 7.1
    CVE-2026-28141 Scanner template

    WordPress NextGEN Gallery plugin <= 4.2.3 - Cross Site Scripting (XSS) vulnerability

    Unauthenticated Cross Site Scripting (XSS) in NextGEN Gallery <= 4.2.3 versions.

    Syed Balkhi NextGEN Gallery
  • High 7.1
    CVE-2026-28143

    WordPress Forminator plugin <= 1.56.0 - Cross Site Scripting (XSS) vulnerability

    Unauthenticated Cross Site Scripting (XSS) in Forminator <= 1.56.0 versions.

    WPMU DEV Forminator
  • High 7.1
    CVE-2026-28082

    WordPress JetEngine plugin <= 3.8.13.1 - Cross Site Scripting (XSS) vulnerability

    Unauthenticated Cross Site Scripting (XSS) in JetEngine <= 3.8.13.1 versions.

    Crocoblock. Jetimpex JetEngine
  • High 7.2
    CVE-2025-15028

    FormGent – Next-Gen AI Form Builder for WordPress with Multi-Step, Quizzes, Payments & More <= 1.9.2 - Unauthenticated Stored Cross-Site Scripting

    The FormGent – Next-Gen AI Form Builder for WordPress with Multi-Step, Quizzes, Payments & More plugin for WordPress is vulnerable to Stored Cross-Site Scripting via form submission fields in all versions up to, and including, 1.9.2 due to insufficient input …

    wpWax FormGent – Next-Gen AI Form Builder for WordPress with Multi-Step, Quizzes, Payments & More Web / CMS
  • High 7.2
    CVE-2026-18510

    TranslatePress <= 3.2.6 - Unauthenticated Stored Cross-Site Scripting via Comment Content

    The TranslatePress – Translate Multilingual sites with AI Translation plugin for WordPress is vulnerable to Stored Cross-Site Scripting via Comment Content (URL-encoded gettext markers) in all versions up to, and including, 3.2.6 due to insufficient input san…

    Cozmoslabs TranslatePress – Translate Multilingual sites with AI Translation Web / CMS
  • High 7.2
    CVE-2026-18325

    Forminator Forms <= 1.56.1 - Unauthenticated Stored Cross-Site Scripting via Forged Upload Record via Select Field

    The Forminator Forms – Contact Form, Payment Form & Custom Form Builder plugin for WordPress is vulnerable to Stored Cross-Site Scripting via Forged Upload Record via Select Field in all versions up to, and including, 1.56.1 due to insufficient input sanitiza…

    WPMU DEV Forminator Forms – Contact Form, Payment Form & Custom Form Builder Web / CMS
  • High 7.2
    CVE-2026-16636

    FluentSMTP <= 2.2.95 - Unauthenticated Stored Cross-Site Scripting via Recipient Display Name (to.name) in Email Logs

    The FluentSMTP – WP SMTP Plugin with Amazon SES, SendGrid, MailGun, Postmark, Google and Any SMTP Provider plugin for WordPress is vulnerable to Stored Cross-Site Scripting via Recipient Display Name (to.name) in Email Logs in all versions up to, and includin…

    WP ManageNinja FluentSMTP – WP SMTP Plugin with Amazon SES, SendGrid, Mailgun, Postmark, Cloudflare, toSend, Gmail and Any SMTP Web / CMS
  • High 8.8
    CVE-2024-39024 Public exploit

    In Packetfence 13.2.0, the WebGui interface setting allows authenticated remote code execution.

  • High 7.2
    CVE-2026-17506

    Independent Analytics <= 2.15.0 - Unauthenticated Stored Cross-Site Scripting

    The Independent Analytics plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the 404 not_found_url tracking parameter in versions up to, and including, 2.15.0. This is due to the get_cell_content() function applying urldecode() after esc_ur…

    bensibley Independent Analytics – WordPress Analytics Plugin Web / CMS
  • High 8.1
    CVE-2026-71285

    Uptime Kuma Stored XSS via Matomo Analytics Site ID on Public Status Pages

    Uptime Kuma's Matomo analytics integration (server/analytics/matomo-analytics.js) injects the admin-configurable Matomo value as a bare, unquoted JavaScript expression inside a <script> block rendered on every public status page. A siteId value such as , once…

    louislam uptime-kuma
  • High 8.5
    CVE-2026-71274

    OpenBK7231T Stored XSS via Unsanitized MQTT-Set Channel Labels

    OpenBK7231T's CHANNEL_SetLabel (src/cmnds/cmd_channels.c) stores channel labels received via the MQTT SetChannelLabel command using strdup with no HTML sanitization. CHANNEL_GetLabel returns these labels unsanitized, and they are rendered via hprintf255 at 15…

    openshwprojects OpenBK7231T_App
  • High 8.7
    CVE-2026-71236

    Grocy - Stored XSS via HTMLPurifier Output Double-Decode

    Grocy's API request-body parser (controllers/Api/BaseApiController.php, GetParsedAndFilteredRequestBody) purifies incoming field values with HTMLPurifier, then manually reverses HTML-entity encoding of the resulting output by replacing &amp;lt;, &amp;gt;, and…

    Grocy project Grocy
  • High 8.7
    CVE-2026-71233

    InvoiceNinja - Stored XSS via Invoice/Quote Terms Field

    InvoiceNinja v5-stable renders an invoice or quote's "terms" field in the client portal using Laravel Blade's raw output directive {!! ->terms !!} (resources/views/portal/ninja2020/invoices/includes/terms.blade.php) with no HTML sanitization.

    Invoice Ninja invoiceninja
  • High 7.5
    CVE-2026-16573

    Bit Form < 3.2.0 - Unauthenticated Stored XSS via SVG Signature Upload

    The Bit Form WordPress plugin before 3.2.0 does not sanitize an uploaded signature image before storing it, allowing unauthenticated attackers to upload a crafted SVG file containing JavaScript that executes when the file is viewed, leading to Stored Cross-Si…

    Web / CMS
  • High 7.2
    CVE-2026-16143

    VikRentItems Flexible Rental Management System <= 1.2.1 - Unauthenticated Stored Cross-Site Scripting

    The VikRentItems – Flexible Rental Management System plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the customer email field of the booking checkout form in versions up to, and including, 1.2.1. This is due to insufficient input sanitiz…

    e4jvikwp VikRentItems Flexible Rental Management System Web / CMS