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 6.1
excalidraw vulnerable to a Stored XSS in excalidraw's web embed component
excalidraw is an open source virtual hand-drawn style whiteboard. A stored XSS vulnerability in Excalidraw's web embeddable component. This allows arbitrary JavaScript to be run in the context of the domain where the editor is hosted. There were two vectors. …
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Medium 4.6
A cross-site scripting (XSS) vulnerability in the Settings section of WonderCMS v3.4.3 allows attackers to execute arbi…
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Medium 6.8
iTop vulnerable to XSS in dashlet modifications ajax endpoints
iTop is an IT service management platform. Dashlet edits ajax endpoints can be used to produce XSS. Fixed in iTop 2.7.10, 3.0.4, and 3.1.1.
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Medium 5.7
iTop vulnerable to XSS in friendlyname in object details
iTop is an IT service management platform. By manipulating HTTP queries, a user can inject malicious content in the fields used for the object friendlyname value. This vulnerability is fixed in 3.1.1 and 3.2.0.
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Medium 6.1
TCPDF Cross-site Scripting vulnerability
TCPDF before 6.7.4 mishandles calls that use HTML syntax.
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Medium 4.6
XSS in graph rendering
Stored XSS in graph rendering in Checkmk <2.3.0b4.
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Medium 4.7
HTML injection in ArcGIS Web AppBuilder
There is an HTML injection vulnerability in Esri Portal for ArcGIS versions 11.1 and below that may allow a remote, unauthenticated attacker to create a crafted link which when clicked could render arbitrary HTML in the victim’s browser.
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Medium 6.1
A vulnerability in the web-based management interface of Cisco Small Business RV016, RV042, RV042G, RV082, RV320, and R…
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Medium 6.3
Cross Site Scripting vulnerability in Insurance Mangement System v.1.0.0 and before allows a remote attacker to execute…
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Medium 4.7
phpMyFAQ Stored HTML Injection at contentLink
phpMyFAQ is an open source FAQ web application for PHP 8.1+ and MySQL, PostgreSQL and other databases. Due to insufficient validation on the `contentLink` parameter, it is possible for unauthenticated users to inject HTML code to the page which might affect o…
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Medium 4.6
HTML injection in BMC Control-M
Lack of input sanitization in BMC Control-M branches 9.0.20 and 9.0.21 allows logged-in users for manipulation of generated web pages via injection of HTML code. This might lead to a successful phishing attack for example by tricking users into using a hyperl…
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Medium 6.3
Webedition CMS 9.2.2.0 has a Stored XSS vulnerability via /webEdition/we_cmd.php.
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Medium 6.1
hexo-theme-anzhiyu Cross-site Scripting vulnerability
Cross Site Scripting (XSS) vulnerability in hexo-theme-anzhiyu v1.6.12, allows remote attackers to execute arbitrary code via the algolia search function.
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Medium 6.1
XSS sidekiq-unique-jobs UI server vulnerability
Cross Site Scripting vulnerability in Contribsys Sidekiq v.6.5.8 allows a remote attacker to obtain sensitive information via a crafted URL to the filter functions.
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Medium 5.4
Enhavo v0.13.1 was discovered to contain an HTML injection vulnerability in the Author text field under the Blockquote …
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Medium 5.4
Frappe Authenticated Reflected Cross site scripting (XSS) in portal pages
Frappe is a full-stack web application framework that uses Python and MariaDB on the server side and a tightly integrated client side library. Prior to versions 14.59.0 and 15.5.0, portal pages are susceptible to Cross-Site Scripting (XSS) which can be used t…
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Medium 6.5
phpMyFAQ vulnerable to stored XSS on attachments filename
phpMyFAQ is an open source FAQ web application for PHP 8.1+ and MySQL, PostgreSQL and other databases. Unsafe echo of filename in phpMyFAQ\phpmyfaq\admin\attachments.php leads to allowed execution of JavaScript code in client side (XSS). This vulnerability ha…
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Medium 6.1
IBM PowerSC HTML injection
IBM PowerSC 1.3, 2.0, and 2.1 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 hosting site. IBM X-Force ID: 275113.
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Medium 5.4
facileManager Systemic Cross-Site Scripting (XSS)
facileManager is a modular suite of web apps built with the sysadmin in mind. For the facileManager web application versions 4.5.0 and earlier, we have found that XSS was present in almost all of the input fields as there is insufficient input validation.
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Medium 6.4
Improper Neutralization of Script-Related HTML Tags in a Web Page (Basic XSS) in GitLab
An issue has been discovered in GitLab CE/EE affecting all versions after 13.7 before 16.6.6, 16.7 prior to 16.7.4, and 16.8 prior to 16.8.1. Improper input sanitization of user name allows arbitrary API PUT requests.
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Medium 4.8
A vulnerability in the web-based management interface of Cisco Prime Infrastructure could allow an authenticated, remot…
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Medium 6.1
Pimcore Admin Classic Bundle Cross-site Scripting (XSS) in PDF previews
The Pimcore Admin Classic Bundle provides a backend UI for Pimcore. Prior to version 1.2.0, a cross-site scripting vulnerability has the potential to steal a user's cookie and gain unauthorized access to that user's account through the stolen cookie or redire…
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Medium 5.4
FOG stored XSS on log screen via unsanitized request logging
FOG is a free open-source cloning/imaging/rescue suite/inventory management system. Prior to version 1.5.10.15, due to a lack of request sanitization in the logs, a malicious request containing XSS would be stored in a log file. When an administrator of the F…
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Medium 4.3
A vulnerability in the web-based management interface of Cisco Catalyst SD-WAN Manager, formerly Cisco SD-WAN vManage, …
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Medium 6.1
XSS in Saphira Connect
Improper Neutralization of Script-Related HTML Tags in a Web Page (Basic XSS) vulnerability in Saphira Saphira Connect allows Reflected XSS. This issue affects Saphira Connect: before 9.
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Medium 5.7
XSS in Chrome Lab Critters
Critters versions 0.0.17-0.0.19 have an issue when parsing the HTML, which leads to a potential cross-site scripting (XSS) bug. We recommend upgrading to version 0.0.20 of the extension.
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Medium 4.8
A vulnerability in the web-based management interface of Cisco Prime Infrastructure and Cisco Evolved Programmable Netw…
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Medium 6.1
A vulnerability in the web-based management interface of Cisco Integrated Management Controller (IMC) could allow an un…
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Medium 5.3
Improper input validation in Zoom SDK’s before 5.14.10 may allow an unauthenticated user to enable a denial of service …
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Medium 6.1
A vulnerability in the web-based management interface of Cisco Small Business SPA500 Series IP Phones could allow an un…
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Medium 5.8
A vulnerability in web-based management interface of Cisco SPA500 Series Analog Telephone Adapters (ATAs) could allow a…
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Medium 5.4
XSS in business intelligence
Reflected XSS in business intelligence in Checkmk <2.2.0p8, <2.1.0p32, <2.0.0p38, <=1.6.0p30.
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Medium 6.1
Cross site scripting in Export Chat feature
matrix-react-sdk is a react-based SDK for inserting a Matrix chat/voip client into a web page. The Export Chat feature includes certain attacker-controlled elements in the generated document without sufficient escaping, leading to stored Cross site scripting …
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Medium 4.7
Cross-site scripting (xss) vulnerabilities exist in the requestHandlers.js detail_device functionality of Milesight VPN…
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Medium 4.7
Cross-site scripting (xss) vulnerabilities exist in the requestHandlers.js detail_device functionality of Milesight VPN…
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Medium 5.5
Craft CMS stored XSS in review volume
Craft is a CMS for creating custom digital experiences. Cross site scripting (XSS) can be triggered by review volumes. This issue has been fixed in version 4.4.7.
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Medium 5.5
Craft CMS stored XSS in indexedVolumes
Craft is a CMS for creating custom digital experiences on the web. Cross-site scripting (XSS) can be triggered via the Update Asset Index utility. This issue has been patched in version 4.4.6.
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Medium 6.3
Improper Neutralization of Script-Related HTML Tags in a Web Page (Basic XSS) in iris-web
Iris is a web collaborative platform aiming to help incident responders sharing technical details during investigations. A stored Cross-Site Scripting (XSS) vulnerability has been identified in iris-web, affecting multiple locations . The vulnerability in all…
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Medium 6.5
PAN-OS: Stored Cross-Site Scripting (XSS) Vulnerability in the Panorama Web Interface
A cross-site scripting (XSS) vulnerability in Palo Alto Networks PAN-OS software on Panorama appliances enables an authenticated read-write administrator to store a JavaScript payload in the web interface that will execute in the context of another administra…
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Medium 5.4
BUG-000155004 HTML injection issue 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…