Weakness (CWE)
CWE-79: Cross-site Scripting
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)
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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.
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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.
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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.
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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.
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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.
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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-79
2,694 results · Clear filters · Feed
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Low 0.6
Orejime has executable code in HTML attributes
Orejime is a consent manager that focuses on accessibility. On HTML elements handled by Orejime prior to version 2.3.2, one could run malicious code by embedding `javascript:` code within data attributes. When consenting to the related purpose, Orejime would …
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Low 2.0
ChurchCRM has Stored Cross-Site Scripting (XSS) In GroupEditor.php
ChurchCRM is an open-source church management system. In versions prior to 6.5.4, there is a Stored Cross-Site Scripting (XSS) vulnerability within the GroupEditor.php page of the application. When a user attempts to create a group role, they can execute mali…
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Low 2.4
xiweicheng TMS create createComment cross site scripting
A security vulnerability has been detected in xiweicheng TMS up to 2.28.0. This affects the function createComment of the file /admin/blog/comment/create. Such manipulation of the argument content leads to cross site scripting. The attack may be performed fro…
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Low 3.5
In JetBrains TeamCity before 2025.11 stored XSS was possible on agentpushInstall page
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Low 2.4
vion707 DMadmin Backend AddonsController.class.php add cross site scripting
A vulnerability was determined in vion707 DMadmin up to 3403cafdb42537a648c30bf8cbc8148ec60437d1. This impacts the function Add of the file Admin/Controller/AddonsController.class.php of the component Backend. Executing manipulation can lead to cross site scr…
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Low 2.4
code-projects Student File Management System update_student.php cross site scripting
A vulnerability was determined in code-projects Student File Management System 1.0. This vulnerability affects unknown code of the file /admin/update_student.php. Executing manipulation can lead to cross site scripting. The attack may be launched remotely. Th…
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Low 2.4
code-projects Student File Management System Update User update_user.php cross site scripting
A vulnerability was found in code-projects Student File Management System 1.0. This affects an unknown part of the file /admin/update_user.php of the component Update User Page. Performing manipulation results in cross site scripting. The attack may be initia…
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Low 3.5
Qualitor viewDocumento.php cross site scripting
A security vulnerability has been detected in Qualitor up to 8.24.73. The impacted element is an unknown function of the file /Qualitor/html/bc/bcdocumento9/biblioteca/request/viewDocumento.php. Such manipulation of the argument cdscript leads to cross site s…
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Low 3.5
yangshare warehouseManager 仓库管理系统 CustomerManageHandler.java addCustomer cross site scripting
A security vulnerability has been detected in yangshare warehouseManager 仓库管理系统 1.1.0. This affects the function addCustomer of the file CustomerManageHandler.java. Such manipulation of the argument Name leads to cross site scripting. The attack can be execut…
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Low 3.5
baowzh hfly advtext add cross site scripting
A security flaw has been discovered in baowzh hfly up to 638ff9abe9078bc977c132b37acbe1900b63491c. This issue affects some unknown processing of the file /admin/index.php/advtext/add of the component advtext Module. The manipulation results in cross site scri…
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Low 3.5
XSS in TACAS Consulting's GoldenHorn
Improper Neutralization of Input During Web Page Generation (XSS or 'Cross-site Scripting') vulnerability in TAC Information Services Internal and External Trade Inc. GoldenHorn allows Cross-Site Scripting (XSS). This issue affects GoldenHorn: before 4.25.112…
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Low 2.4
GreenCMS Menu Management CustomController.class.php cross site scripting
A flaw has been found in GreenCMS 2.3.0603. Affected by this issue is some unknown functionality of the file /Admin/Controller/CustomController.class.php of the component Menu Management Page. This manipulation of the argument Link causes cross site scripting…
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Low 3.5
Yealink SIP-T21P E2 Local Directory cross site scripting
A weakness has been identified in Yealink SIP-T21P E2 52.84.0.15. Impacted is an unknown function of the component Local Directory Page. This manipulation causes cross site scripting. It is possible to initiate the attack remotely. The exploit has been made a…
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Low 3.5CVE-2025-14221 Public exploit
SourceCodester Online Banking System page cross site scripting
A vulnerability was detected in SourceCodester Online Banking System 1.0. This impacts an unknown function of the file /?page=user. The manipulation of the argument First Name/Last Name results in cross site scripting. The attack can be launched remotely. The…
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Low 3.5
A stored cross-site scripting vulnerability exists in the web management interface of the R.V.R. Elettronica TLK302T te…
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Low 2.4
code-projects Chamber of Commerce Membership Management System Your Info membership_profile.php cross site scripting
A vulnerability was found in code-projects Chamber of Commerce Membership Management System 1.0. Impacted is an unknown function of the file /membership_profile.php of the component Your Info Handler. Performing manipulation of the argument Full Name/Address/…
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Low 2.4
alokjaiswal Hotel-Management-services-using-MYSQL-and-php dishsub.php cross site scripting
A vulnerability was found in alokjaiswal Hotel-Management-services-using-MYSQL-and-php up to 5f8b60a7aa6c06a5632de569d4e3f6a8cd82f76f. Affected by this vulnerability is an unknown functionality of the file /dishsub.php. The manipulation of the argument item.n…
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Low 3.5
alokjaiswal Hotel-Management-services-using-MYSQL-and-php Request Pending usersub.php cross site scripting
A vulnerability has been found in alokjaiswal Hotel-Management-services-using-MYSQL-and-php up to 5f8b60a7aa6c06a5632de569d4e3f6a8cd82f76f. Affected is an unknown function of the file /usersub.php of the component Request Pending Page. The manipulation leads …
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Low 3.5
code-projects Employee Profile Management System view_personnel.php cross site scripting
A vulnerability was identified in code-projects Employee Profile Management System 1.0. This issue affects some unknown processing of the file /view_personnel.php. The manipulation of the argument per_address/dr_school/other_school leads to cross site scripti…
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Low 3.5
Nextcloud Contacts vulnerable to Stored XSS in contacts app via organisation and title field
Contacts app for Nextcloud easily syncs contacts from various devices with your Nextcloud and allows editing. Prior to 5.5.4, 6.0.6, and 7.2.5, a malicious user was able to modify their organisation and title field to load additional CSS files. Javascript and…
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Low 3.5
Nextcloud Mail stored HTML injection in subject text
Nextcloud Mail is the mail app for Nextcloud, a self-hosted productivity platform. Prior to 5.5.3, a stored HTML injection in the Mail app's message list allowed an authenticated user to inject HTML into the email subjects. Javascript was correctly blocked by…
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Low 2.4
JIZHICMS Comment addcomment.html cross site scripting
A vulnerability was identified in JIZHICMS up to 2.5.5. The impacted element is an unknown function of the file /index.php/admins/Comment/addcomment.html of the component Comment Handler. The manipulation of the argument body leads to cross site scripting. Th…
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Low 2.0
dayrui XunRuiCMS Domain Name Binding admin79f2ec220c7e.php cross site scripting
A vulnerability was detected in dayrui XunRuiCMS up to 4.7.1. This affects an unknown part of the file /admin79f2ec220c7e.php?c=api&m=demo&name=mobile of the component Domain Name Binding Page. The manipulation results in cross site scripting. The attack may …
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Low 3.5
dayrui XunRuiCMS Add Data Validation admind45f74adbd95.php cross site scripting
A security vulnerability has been detected in dayrui XunRuiCMS up to 4.7.1. Affected by this issue is some unknown functionality of the file /admind45f74adbd95.php?c=field&m=add&rname=site&rid=1&page=1 of the component Add Data Validation Page. The manipulati…
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Low 2.4
dayrui XunRuiCMS Add Display Name Field admind45f74adbd95.php cross site scripting
A weakness has been identified in dayrui XunRuiCMS up to 4.7.1. Affected by this vulnerability is an unknown functionality of the file /admind45f74adbd95.php?c=field&m=add&rname=site&rid=1&page=0 of the component Add Display Name Field. Executing a manipulati…
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Low 2.4
Stored Cross-Site scripting (XSS) through Anchor Tag "href" in Navigation Bar Collections in Splunk Enterprise
In Splunk Enterprise versions below 10.0.2, 9.4.6, 9.3.8, and 9.2.10, and Splunk Cloud Platform versions below 10.1.2507.6, 10.0.2503.7, and 9.3.2411.117, a user who holds a role with a high privilege capability `admin_all_objects` could craft a malicious pay…
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Low 3.5CVE-2025-65858 Public exploit
Calibre-Web Has a Stored Cross-Site Scripting (XSS) Vulnerability via the 'username' Field During User Creation
A Stored Cross-Site Scripting (XSS) vulnerability in Calibre-Web v0.6.25 allows attackers to inject malicious JavaScript into the 'username' field during user creation. The payload is stored unsanitized and later executed when the /ajax/listusers endpoint is …
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Low 2.4
codingWithElias School Management System Edit Student Info student-view.php cross site scripting
A weakness has been identified in codingWithElias School Management System up to f1ac334bfd89ae9067cc14dea12ec6ff3f078c01. Affected is an unknown function of the file /student-view.php of the component Edit Student Info Page. This manipulation of the argument…
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Low 2.4
yungifez Skuul School Management System SVG File edit cross site scripting
A weakness has been identified in yungifez Skuul School Management System up to 2.6.5. This vulnerability affects unknown code of the file /dashboard/schools/1/edit of the component SVG File Handler. This manipulation causes cross site scripting. The attack i…
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Low 3.6
Spotipy has a XSS vulnerability in OAuth callback server
Spotipy is a Python library for the Spotify Web API. Prior to version 2.25.2, there is a cross-site scripting (XSS) vulnerability in the OAuth callback server that allows for JavaScript injection through the unsanitized error parameter. Attackers can execute …
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Low 3.3
Contao is vulnerable to cross-site scripting in templates
Contao is an Open Source CMS. From version 4.0.0 to before 4.13.57, before 5.3.42, and before 5.6.5, it is possible to inject code into the template output that will be executed in the browser in the front end and back end. This issue has been patched in vers…
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Low —
OMERO.web uses jquery-form library, which may be vulnerable to XSS attack
### Impact OMERO.web uses the jquery-form library throughout to handle form submission and response processing. Due to some unpatched potential vulnerabilities in jquery-form, OMERO.web 5.29.2 and earlier may be susceptible to XSS attacks. ### Patches User sh…
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Low 3.5
Eigenfocus Description cross site scripting
A security vulnerability has been detected in Eigenfocus up to 1.4.0. This vulnerability affects unknown code of the component Description Handler. The manipulation of the argument entry.description/time_entry.description leads to cross site scripting. The at…
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Low 3.5
PHPGurukul Hostel Management System register-complaint.php cross site scripting
A flaw has been found in PHPGurukul Hostel Management System 2.1. The impacted element is an unknown function of the file /register-complaint.php. Executing a manipulation of the argument cdetails can lead to cross site scripting. It is possible to launch the…
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Low 2.4
Campcodes Complete Online Beauty Parlor Management System customer-list.php cross site scripting
A vulnerability was identified in Campcodes Complete Online Beauty Parlor Management System 1.0. This vulnerability affects unknown code of the file /admin/customer-list.php. The manipulation of the argument Name leads to cross site scripting. The attack may …
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Low 3.5
Medical Informatics Engineering Enterprise Health stored cross site scripting via Demographic Information page
Medical Informatics Engineering Enterprise Health has a stored cross site scripting vulnerability that allows an authenticated attacker to add arbitrary content in the 'Demographic Information' page. This content will be rendered and executed when a victim ac…
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Low 3.5
Improper neutralization of input in Revive Adserver 5.5.2 and 6.0.1 and earlier versions causes manager accounts to be …
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Low 3.5
Missing JSON Content-Type header in a script in Revive Adserver 6.0.1 and 5.5.2 and earlier versions causes a stored XS…
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Low 2.4
Public Knowledge Project omp/ojs Payment Instructions Setting paymentForm.tpl cross site scripting
A security vulnerability has been detected in Public Knowledge Project omp and ojs 3.3.0/3.4.0/3.5.0. Impacted is an unknown function of the file plugins/paymethod/manual/templates/paymentForm.tpl of the component Payment Instructions Setting Handler. The man…
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Low 3.5
SourceCodester Online Shop Project register.php cross site scripting
A vulnerability was determined in SourceCodester Online Shop Project 1.0. Impacted is an unknown function of the file /shop/register.php. This manipulation of the argument f_name causes cross site scripting. It is possible to initiate the attack remotely. The…