Weakness (CWE)
CWE-80: Improper Neutralization of Script-Related HTML Tags in a Web Page
The product receives input from an upstream component, but it does not neutralize or incorrectly neutralizes special characters such as "<", ">", and "&" that could be interpreted as web-scripting elements when they are sent to a downstream component that processes web pages.
How to prevent it (4 mitigations)
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Implementation
Carefully check each input parameter against a rigorous positive specification (allowlist) defining the specific characters and format allowed. All input should be neutralized, not just parameters that the user is supposed to specify, but all data in the request, including hidden fields, cookies, headers, the URL itself, and so forth. A common mistake that leads to continuing XSS vulnerabilities is to validate only fields that are expected to be redisplayed by the site. We often encounter data from the request that is reflected by the application server or the application that the development team did not anticipate. Also, a field that is not currently reflected may be used by a future developer. Therefore, validating ALL parts of the HTTP request is recommended.
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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-80
426 results · Clear filters · Feed
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Medium 6.1CVE-2024-57004 EPSS 41%
Cross-Site Scripting (XSS) vulnerability in Roundcube Webmail 1.6.9 allows remote authenticated users to upload a malic…
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Medium 5.4
IBM Control Center cross-site scripting
IBM Control Center 6.2.1 and 6.3.1 could allow a remote attacker to obtain sensitive information when a detailed technical error message is returned in the browser. This information could be used in further attacks against the system.
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Medium 6.5
WordPress Listamester Plugin <= 2.3.4 - Cross Site Scripting (XSS) vulnerability
Improper Neutralization of Script-Related HTML Tags in a Web Page (Basic XSS) vulnerability in listamester Listamester listamester allows Stored XSS.This issue affects Listamester: from n/a through <= 2.3.4.
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Medium 6.5
WordPress Ketchup Shortcodes Plugin <= 0.1.2 - Cross Site Scripting (XSS) vulnerability
Improper Neutralization of Script-Related HTML Tags in a Web Page (Basic XSS) vulnerability in AyeCode Ketchup Shortcodes ketchup-shortcodes-pack allows Stored XSS.This issue affects Ketchup Shortcodes: from n/a through <= 0.1.2.
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Medium 5.4
WordPress Slides & Presentations Plugin <= 0.0.39 - Content Injection vulnerability
Improper Neutralization of Script-Related HTML Tags in a Web Page (Basic XSS) vulnerability in Ella Van Durpe Slides & Presentations slide allows Code Injection.This issue affects Slides & Presentations: from n/a through <= 0.0.39.
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Medium 5.2
phpMyFAQ Vulnerable to Stored HTML Injection at FAQ
phpMyFAQ is an open source FAQ web application. Starting no later than version 3.2.10 and prior to version 4.0.2, an attacker can inject malicious HTML content into the FAQ editor at `http[:]//localhost/admin/index[.]php?action=editentry`, resulting in a comp…
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Medium 5.4
IBM Cognos Analytics HTML injection
IBM Cognos Analytics 11.2.0 through 11.2.4 and 12.0.0 through 12.0.3 is vulnerable to HTML injection. A remote attacker could inject malicious HTML code, which when viewed, would be executed in the victim's Web browser within the security context of the hosti…
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Medium 6.1
Learning Management System, eLearning, Course Builder, WordPress LMS Plugin – Sikshya LMS <= 0.0.21 - Reflected Cross-Site Scripting via page Parameter
The Learning Management System, eLearning, Course Builder, WordPress LMS Plugin – Sikshya LMS plugin for WordPress is vulnerable to Reflected Cross-Site Scripting via the ‘page’ parameter in all versions up to, and including, 0.0.21 due to insufficient input …
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Medium 5.3
WordPress ARForms plugin <= 1.7.1 - HTML Injection vulnerability
Improper Neutralization of Script-Related HTML Tags in a Web Page (Basic XSS) vulnerability in reputeinfosystems ARForms Form Builder arforms-form-builder allows Code Injection.This issue affects ARForms Form Builder: from n/a through <= 1.7.1.
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Medium 4.3
WordPress wpForo plugin <= 2.2.5 - Broken Access Control + CSRF vulnerability
Improper Neutralization of Script-Related HTML Tags in a Web Page (Basic XSS) vulnerability in gVectors Team wpForo Forum allows Code Injection.This issue affects wpForo Forum: from n/a through 2.2.5.
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Medium 5.7
Directus has an HTML Injection in Comment
Directus is a real-time API and App dashboard for managing SQL database content. The Comment feature has implemented a filter to prevent users from adding restricted characters, such as HTML tags. However, this filter operates on the client-side, which can be…
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Medium 5.5
Kanboard allows a persistent HTML injection site scripting in settings page date format
Kanboard is project management software that focuses on the Kanban methodology. HTML can be injected and stored into the application settings section. The fields application_language, application_date_format,application_timezone and application_time_format al…
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Medium 5.1
Authenticated HTML Injection in Issuetrak Ticket Comment Function
A HTML Injection vulnerability was identified in Issuetrak version 17.1 that could be triggered by an authenticated user. HTML markup could be added to comments of tickets, which when submitted will render in the emails sent to all users on that ticket.
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Medium 6.1
2FAuth vulnerable to stored cross-site scripting via SVG upload and direct access render
2FAuth is a web app to manage Two-Factor Authentication (2FA) accounts and generate their security codes. Versions prior to 5.4.1 are vulnerable to stored cross-site scripting due to improper headers in direct access to uploaded SVGs. The application allows u…
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Medium 5.5
File Upload Bypass in django Filer
Unrestricted Upload of File with Dangerous Type, Improper Neutralization of Script-Related HTML Tags in a Web Page (Basic XSS) vulnerability in django CMS Association django Filer allows Input Data Manipulation, Stored XSS. This issue affects django Filer: fr…
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Medium 5.4
Cisco Webex Teams Web Interface Cross-Site Scripting Vulnerability
A vulnerability in the web-based interface of Cisco Webex Teams could allow an authenticated, remote attacker to conduct cross-site scripting attacks. The vulnerability is due to improper validation of usernames. An attacker could exploit this vulnerabil…
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Medium 6.4
Mapster WP Maps <= 1.6.0 - Authenticated (Contributor+) Stored Cross-Site Scripting
The Mapster WP Maps plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the popup class parameter in all versions up to, and including, 1.6.0 due to insufficient input sanitization and output escaping. This makes it possible for authenticate…
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Medium 6.1
Cisco Webex Meetings Cross-Site Scripting Vulnerability
A vulnerability in the web-based interface of Cisco Webex Meetings could allow an unauthenticated, remote attacker to conduct a cross-site scripting (XSS) attack against a user of the web-based interface. This vulnerability is due to insufficient validat…
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Medium 6.1
WP-Strava <= 2.12.1 - Authenticated (Administrator+) Stored Cross-Site Scripting
The WP-Strava plugin for WordPress is vulnerable to Stored Cross-Site Scripting via admin settings in all versions up to, and including, 2.12.1 due to insufficient input sanitization and output escaping. This makes it possible for authenticated attackers, wit…
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Medium 6.4
Simple Shortcode for Google Maps <= 1.5.4 - Authenticated (Contributor+) Stored Cross-Site Scripting via Shortcode
The Simple Shortcode for Google Maps plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the plugin's pw_map shortcode in all versions up to, and including, 1.5.4 due to insufficient input sanitization and output escaping on user supplied at…
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Medium 5.4
Cisco Secure Email and Web Manager, Secure Email Gateway, and Secure Web Appliance Stored Cross-Site Scripting Vulnerabilities
A vulnerability in the web-based management interface of Cisco AsyncOS Software for Cisco Secure Email and Web Manager, Secure Email Gateway, and Secure Web Appliance could allow an authenticated, remote attacker to conduct a stored cross-site scripting (XSS)…
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Medium 5.5
Jinja2 Templates are vulnerable to XSS attacks due to their configuration in OctoPrint
OctoPrint provides a web interface for controlling consumer 3D printers. OctoPrint versions up until and including 1.10.2 contain reflected XSS vulnerabilities in the login dialog and the standalone application key confirmation dialog. An attacker who success…
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Medium 6.9
HTML Injection in Bna Informatics' PosPratik
Improper Neutralization of Script-Related HTML Tags in a Web Page (Basic XSS) vulnerability in Bna Informatics PosPratik allows XSS Through HTTP Query Strings. This issue affects PosPratik: before v3.2.1.
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Medium 4.6
I, Librarian has a Stored XSS vulnerability in Supplemental Files
I, Librarian is an open-source version of a PDF managing SaaS. Supplemental Files are allowed to be viewed in the browser, only if they have a white-listed MIME type. Unfortunately, this logic is broken, thus allowing unsafe files containing Javascript to be …
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Medium 6.1
SEUR Oficial <= 2.2.11 - Reflected Cross-Site Scripting
The SEUR Oficial plugin for WordPress is vulnerable to Reflected Cross-Site Scripting via the 'change_service' parameter in all versions up to, and including, 2.2.11 due to insufficient input sanitization and output escaping. This makes it possible for unauth…
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Medium 6.1
A vulnerability in the VPN web client services feature of Cisco Adaptive Security Appliance (ASA) Software and Cisco Fi…
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Medium 6.1
Cisco Adaptive Security Appliance WebVPN Cross-Site Scripting Vulnerability
A vulnerability in the VPN web client services feature of Cisco Adaptive Security Appliance (ASA) Software and Cisco Firepower Threat Defense (FTD) Software could allow an unauthenticated, remote attacker to conduct a cross-site scripting (XSS) attack against…
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Medium 4.2
Umbraco CMS vulnerable to stored Cross-site Scripting in the "dictionary name" on Dictionary section
Umbraco, a free and open source .NET content management system, has a cross-site scripting vulnerability starting in version 14.0.0 and prior to versions 14.3.1 and 15.0.0. This can be leveraged to gain access to higher-privilege endpoints, e.g. if you get a …
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Medium 6.1
Cisco ATA 190 Series Analog Telephone Adapter Firmware Reflected Cross-Site Scripting Vulnerability
A vulnerability in the web-based management interface of Cisco ATA 190 Series Analog Telephone Adapter firmware could allow an unauthenticated, remote attacker to conduct a reflected cross-site scripting (XSS) attack against a user. This vulnerability is due …
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Medium 6.8
F5 BIG-IQ Vulnerability
A stored cross-site scripting (XSS) vulnerability exists in an undisclosed page of the BIG-IQ Configuration utility that allows an attacker with the Administrator role to run JavaScript in the context of the currently logged-in user. Note: Software versions…
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Medium 6.0
Cross-site Scripting in IncidentReporting
IncidentReporting is a MediaWiki extension for moving incident reports from wikitext to database tables. There are a variety of Cross-site Scripting issues, though all of them require elevated permissions. Some are available to anyone who has the `editinciden…
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Medium 6.0
Cross-site Scripting (XSS) on Special:RequestImportQueue when displaying request date in ImportDump
ImportDump is an extension for mediawiki designed to automate user import requests. Anyone who can edit the interface strings of a wiki (typically administrators and interface admins) can embed XSS payloads in the messages for dates, and thus XSS anyone who v…
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Medium 5.4
BUG-000161683 - HTML injection vulnerability in Portal for ArcGIS.
There is an HTML injection vulnerability in Esri Portal for ArcGIS versions 11.0 and below that may allow a remote, authenticated attacker to create a crafted link which when clicked could render arbitrary HTML in the victim’s browser (no stateful change made…
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Medium 6.9
Minecraft MOTD Parser's HtmlGenerator vulnerable to XSS
Minecraft MOTD Parser is a PHP library to parse minecraft server motd. The HtmlGenerator class is subject to potential cross-site scripting (XSS) attack through a parsed malformed Minecraft server MOTD. The HtmlGenerator iterates through objects of MotdItem t…
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Medium 4.8
starcitizentools/citizen-skin vulnerable to stored, self-XSS in the "real name" field
Citizen is a MediaWiki skin that makes extensions part of the cohesive experience. A user with the editmyprivateinfo right or who can otherwise change their name can XSS themselves by setting their "real name" to an XSS payload. This vulnerability is fixed in…
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Medium 6.1
Store Hours for WooCommerce <= 4.3.20 - Reflected Cross-Site Scripting
The Store Hours for WooCommerce plugin for WordPress is vulnerable to Reflected Cross-Site Scripting due to the use of add_query_arg without appropriate escaping on the URL in all versions up to, and including, 4.3.20. This makes it possible for unauthenticat…
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Medium 4.4
MailChimp for Wordpress <= 4.9.16 - Authenticated (Administrator+) Stored Cross-Site Scripting
The MC4WP: Mailchimp for WordPress plugin for WordPress is vulnerable to Stored Cross-Site Scripting via admin settings in all versions up to, and including, 4.9.16 due to insufficient input sanitization and output escaping. This makes it possible for authent…
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Medium 4.8
XSS in Notifications via saving Dashboards
Prior to the patched version, logged in users of Mautic are vulnerable to a self XSS vulnerability in the notifications within Mautic. Users could inject malicious code into the notification when saving Dashboards.
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Medium 5.5
Craft CMS stored XSS in breadcrumb list and title fields
Craft is a content management system (CMS). Craft CMS 5 stored XSS can be triggered by the breadcrumb list and title fields with user input.
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Medium 4.8
XSS in view page with SLA column
XSS in the view page with the SLA column configured in Checkmk versions prior to 2.3.0p14, 2.2.0p33, 2.1.0p47 and 2.0.0 (EOL) allowed malicious users to execute arbitrary scripts by injecting HTML elements into the SLA column title. These scripts could be exe…