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 4.3
The setMediaSource function on the amzn.thin.pl service does not sanitize the "source" parameter allowing for arbitrary…
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Medium 6.1
Reflected Cross Site Scripting (XSS)
Reflective Cross-Site-Scripting in Webconf in Tribe29 Checkmk Appliance before 1.6.4.
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Medium 4.2
An improper neutralization of script-related HTML tags in a web page vulnerability [CWE-80] in FortiAuthenticator versi…
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Medium 6.1
Silverstripe Form Capture vulnerable to Stored Cross-Site Scripting
Silverstripe Form Capture provides a method to capture simple silverstripe forms and an admin interface for users. Starting in version 0.2.0 and prior to versions 1.0.2, 1.1.0, 2.2.5, and 3.1.1, improper escaping when presenting stored form submissions allowe…
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Medium 6.1
XSS in Vira-Investing
Improper Neutralization of Script-Related HTML Tags in a Web Page (Basic XSS) vulnerability in Virames Vira-Investing allows Cross-Site Scripting (XSS). This issue affects Vira-Investing: before 1.0.84.86.
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Medium 5.4CVE-2022-1274 Public exploit
HTML Injection in Keycloak Admin REST API
A flaw was found in Keycloak in the execute-actions-email endpoint. This issue allows arbitrary HTML to be injected into emails sent to Keycloak users and can be misused to perform phishing or other attacks against users.
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Medium 6.1
XSS in UBIT Information Technologies Student Information Management System
Improper Neutralization of Script-Related HTML Tags in a Web Page (Basic XSS) vulnerability in UBIT Information Technologies Student Information Management System. This issue affects Student Information Management System: before 20211126.
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Medium 6.1
XSS in UBIT Information Technologies Student Information Management System
Improper Neutralization of Script-Related HTML Tags in a Web Page (Basic XSS) vulnerability in UBIT Information Technologies Student Information Management System. This issue affects Student Information Management System: before 20211126.
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Medium 6.5
teler-waf contains detection rule bypass via entities payload
teler-waf is a Go HTTP middleware that provides teler IDS functionality to protect against web-based attacks. In teler-waf prior to version v0.2.0 is vulnerable to a bypass attack when a specific case-sensitive hex entities payload with special characters suc…
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Medium 6.5
teler-waf subject to bypass of common web attack threat rule with HTML entities payload
teler-waf is a Go HTTP middleware that provides teler IDS functionality to protect against web-based attacks. In teler-waf prior to version 0.1.1 is vulnerable to bypassing common web attack rules when a specific HTML entities payload is used. This vulnerabil…
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Medium 5.4
ViewVC XSS vulnerability in revision view changed path "copyfrom" locations
ViewVC is a browser interface for CVS and Subversion version control repositories. Versions prior to 1.2.3 and 1.1.30 are vulnerable to cross-site scripting. The impact of this vulnerability is mitigated by the need for an attacker to have commit privileges t…
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Medium 6.1
HTML injection in accountswitcher-callback.html (10.9.1, 10.8.1 and 10.7.1 only)
There is a reflected HTML injection vulnerability in Esri Portal for ArcGIS versions 10.9.1 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 6.3
HTML attributes when attaching a YouTube link to the post
Silverware Games is a social network where people can play games online. Users can attach URLs to YouTube videos, the site will generate related `<iframe>` when the post will be published. The handler has some sort of protection so non-YouTube links can't be …
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Medium 6.1
A vulnerability has been identified in SCALANCE X204RNA (HSR) (All versions < V3.2.7), SCALANCE X204RNA (PRP) (All vers…
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Medium 4.5
Cross-Site Scripting (XSS) in external links in GLPI
GLPI stands for Gestionnaire Libre de Parc Informatique. GLPI is a Free Asset and IT Management Software package that provides ITIL Service Desk features, licenses tracking and software auditing. External links are not properly sanitized and can therefore be …
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Medium 5.4
Twisted vulnerable to NameVirtualHost Host header injection
Twisted is an event-based framework for internet applications. Started with version 0.9.4, when the host header does not match a configured host `twisted.web.vhost.NameVirtualHost` will return a `NoResource` resource which renders the Host header unescaped in…
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Medium 5.4
Improper Neutralization of Script-Related HTML Tags in a Web Page (Basic XSS) in MyGraph
MyGraph is a permission management system. Versions prior to 1.0.4 are vulnerable to a storage XSS vulnerability leading to Remote Code Execution. This issue is patched in version 1.0.4. There is no known workaround.
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Medium 5.4
Discourse-Chat Cross-Site Scripting issue for channel names and descriptions
Discourse-Chat is an asynchronous messaging plugin for the Discourse open-source discussion platform. Users of Discourse Chat can be affected by admin users inserting HTML into chat titles and descriptions, causing a Cross-Site Scripting (XSS) attack. Version…
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Medium 5.4
Stored Cross-Site Scripting (XSS) in Keycloak via groups dropdown
A flaw was found in Keycloak. This flaw allows a privileged attacker to use the malicious payload as the group name while creating a new group from the admin console, leading to a stored Cross-site scripting (XSS) attack.
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Medium 6.1
HTML Injection in ActiveMQ Artemis Web Console
In Apache ActiveMQ Artemis prior to 2.24.0, an attacker could show malicious content and/or redirect users to a malicious URL in the web console by using HTML in the name of an address or queue.
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Medium 6.8
Affected devices do not properly sanitize data introduced by an user when rendering the web interface. This could allow…
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Medium 6.1
An issue was discovered in EyouCMS 1.5.8. There is a Storage XSS vulnerability that can allows an attacker to execute a…
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Medium 5.7
XSS vulnerability in Citadel
The embedded neutralization of Script-Related HTML Tag, was by-passed in the case of some extra conditions.
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Medium 4.3
Itech Movie Portal Script movie.php Reflected cross site scripting
A vulnerability was found in Itech Movie Portal Script 7.36. It has been rated as problematic. Affected by this issue is some unknown functionality of the file /movie.php. The manipulation of the argument f with the input <img src=i onerror=prompt(1)> leads t…
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Medium 6.1
Cisco IoT Control Center Cross-Site Scripting Vulnerability
A vulnerability in the web-based management interface of Cisco IoT Control Center could allow an unauthenticated, remote attacker to conduct a cross-site scripting (XSS) attack against a user of the interface. This vulnerability exists because the web-based m…
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Medium 4.3
Elefant CMS extended Reflected cross site scriting
A vulnerability has been found in Elefant CMS 1.3.12-RC and classified as problematic. This vulnerability affects unknown code of the file /admin/extended. The manipulation of the argument name with the input %3Cimg%20src=no%20onerror=alert(1)%3E leads to bas…
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Medium 4.3
Elefant CMS Version Comparison Persistent cross site scriting
A vulnerability classified as problematic was found in Elefant CMS 1.3.12-RC. Affected by this vulnerability is an unknown functionality of the component Version Comparison. The manipulation leads to basic cross site scripting (Persistent). The attack can be …
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Medium 4.3
Elefant CMS Persistent cross site scriting
A vulnerability classified as problematic has been found in Elefant CMS 1.3.12-RC. Affected is an unknown function. The manipulation of the argument username leads to basic cross site scripting (Persistent). It is possible to launch the attack remotely. Upgra…
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Medium 4.3
Navetti PricePoint Reflected cross site scriting
A vulnerability was found in Navetti PricePoint 4.6.0.0. It has been classified as problematic. This affects an unknown part. The manipulation leads to basic cross site scripting (Reflected). It is possible to initiate the attack remotely. Upgrading to versio…
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Medium 4.3
Navetti PricePoint Persistent cross site scriting
A vulnerability was found in Navetti PricePoint 4.6.0.0 and classified as problematic. Affected by this issue is some unknown functionality. The manipulation leads to basic cross site scripting (Persistent). The attack may be launched remotely. Upgrading to v…
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Medium 4.3
PHPList Reflected cross site scriting
A vulnerability classified as problematic has been found in PHPList 3.2.6. This affects an unknown part of the file /lists/admin/. The manipulation of the argument page with the input send\'\";><script>alert(8)</script> leads to cross site scripting (Reflecte…
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Medium 4.3
HumHub DOM cross site scriting
A vulnerability was found in HumHub up to 1.0.1 and classified as problematic. Affected by this issue is some unknown functionality. The manipulation leads to cross site scripting (DOM). The attack may be launched remotely. The exploit has been disclosed to t…
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Medium 4.3
HumHub Reflected cross site scriting
A vulnerability has been found in HumHub up to 1.0.1 and classified as problematic. Affected by this vulnerability is an unknown functionality. The manipulation leads to cross site scripting (Reflected). The attack can be launched remotely. The exploit has be…
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Medium 5.4
XSS vulnerability in repository issue list in Gogs
Gogs is an open source self-hosted Git service. In versions of gogs prior to 0.12.9 `DisplayName` does not filter characters input from users, which leads to an XSS vulnerability when directly displayed in the issue list. This issue has been resolved in commi…
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Medium 4.8
Cisco UCS Director JavaScript Cross-Site Scripting Vulnerability
A vulnerability in the web applications of Cisco UCS Director could allow an authenticated, remote attacker to conduct a cross-site scripting attack on an affected system. This vulnerability is due to unsanitized user input. An attacker could exploit this vul…
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Medium 5.4
A cross-site scripting (xss) vulnerability exists in the info.jsp functionality of InHand Networks InRouter302 V3.5.4. …
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Medium 6.1
Cisco Firepower Management Center Software Cross-Site Scripting Vulnerability
A vulnerability in the web-based management interface of Cisco Firepower Management Center (FMC) Software could allow an unauthenticated, remote attacker to conduct a cross-site scripting attack. This vulnerability is due to improper validation of user-suppli…
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Medium 5.7
In JetBrains YouTrack before 2022.1.43563 HTML code from the issue description was being rendered
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Medium 5.5
Pro2col Stingray FTS cross site scriting
A vulnerability, which was classified as problematic, has been found in Pro2col Stingray FTS. The manipulation of the argument Username leads to cross site scripting. The attack may be initiated remotely. It is recommended to upgrade the affected component. N…
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Medium 5.0
ISS BlackICE PC Protection Update cross site scriting
A vulnerability was found in ISS BlackICE PC Protection. It has been rated as problematic. Affected by this issue is the Update Handler. The manipulation with an unknown input leads to cross site scripting. The attack may be launched remotely. The exploit has…