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
2,688 results · Clear filters · Feed
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Low 3.4
In JetBrains TeamCity before 2026.1 stored XSS on the SAML login page was possible
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Low 2.3
XSS in QuickCMS
QuickCMS is vulnerable to Cross-Site Scripting (XSS) through its insecure HTTP-based plugin‑fetching mechanism. A malicious attacker can perform a Man‑in‑the‑Middle (MITM) attack by impersonating the opensolution.org server and serving arbitrary HTML or JavaS…
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Low 2.4
QianFox FoxCMS Administrator Backend edit cross site scripting
A vulnerability was determined in QianFox FoxCMS up to 1.2.6. The impacted element is an unknown function of the file /Tag/edit of the component Administrator Backend. Executing a manipulation can lead to cross site scripting. It is possible to launch the att…
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Low 2.4
SourceCodester/oretnom23 Hospitals Patient Records Management System view_patient cross site scripting
A vulnerability was found in SourceCodester/oretnom23 Hospitals Patient Records Management System 1.0. The impacted element is an unknown function of the file /admin/?page=patients/view_patient. Performing a manipulation of the argument Remarks results in cro…
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Low 3.5
SourceCodester Student Grades Management System students.php cross site scripting
A vulnerability was identified in SourceCodester Student Grades Management System 1.0. Affected by this issue is some unknown functionality of the file students.php. The manipulation of the argument Remarks leads to cross site scripting. Remote exploitation o…
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Low 3.5
yashpokharna2555 StudentManagementSystem student.php cross site scripting
A vulnerability was detected in yashpokharna2555 StudentManagementSystem cb2f558ddf8d19396de0f92abf2d224d46a0a203. This impacts an unknown function of the file /student.php. Performing a manipulation of the argument FIRST_NAME results in cross site scripting.…
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Low 3.5
SourceCodester Indian Invoicing System Invoice Template Render Database-Backed add_order.php cross site scripting
A security flaw has been discovered in SourceCodester Indian Invoicing System up to 0.x/1.0. The impacted element is an unknown function of the file /Invoicing/add_order.php of the component Invoice Template Render Database-Backed. The manipulation of the arg…
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Low 2.4
SourceCodester SUP Online Shopping productedit.php cross site scripting
A vulnerability was identified in SourceCodester SUP Online Shopping 1.0. The impacted element is an unknown function of the file /admin/productedit.php. The manipulation of the argument productName leads to cross site scripting. It is possible to initiate th…
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Low 3.5
vBulletin Login cross site scripting
A vulnerability was found in vBulletin 6.x. This impacts an unknown function of the component Login. Performing a manipulation results in cross site scripting. It is possible to initiate the attack remotely. The exploit has been made public and could be used.…
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Low 2.1
Concrete CMS version 9.0 to 9.5.0 is vulnerable to Stored XSS via page name in atomik theme
Concrete CMS version 9.0 to 9.5.0 is vulnerable to Stored XSS via page name in the Atomik theme. A rogue editor can inject arbitrary JavaScript that executes in the context of any authenticated user visiting the affected account pages. This can lead to sessio…
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Low 2.0
Concrete CMS 9.5.0 and below is vulnerable to Stored XSS via external-link page cvName
Concrete CMS 9.5.0 and below is vulnerable to Stored XSS via external-link page cvName because updateCollectionAliasExternal bypasses being sanitized. The Concrete CMS security team gave this vulnerability a CVSS v.4.0 score of 2.0 with vector CVSS:4.0/AV:N/A…
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Low 3.9
FacturaScripts: Reflected Cross-Site Scripting (XSS) via Cookie Manipulation
FacturaScripts is an open source accounting and invoicing software. Versions 2025.7 and prior contain a Reflected Cross-Site Scripting (XSS) vulnerability through the fsNick cookie parameter. The application reflects the cookie's value directly into the HTML …
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Low —
Sveltia CMS: Stored XSS in entry summary rendering via entity-decoded HTML
### Impact A stored cross-site scripting (XSS) vulnerability affected entry summary rendering in Sveltia CMS. Entry summaries that allowed limited Markdown were parsed, sanitized, and then HTML entities were decoded. This order allowed specially crafted entit…
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Low 3.8
Unescaped variables during error page composition
Mattermost versions 11.5.x <= 11.5.1, 10.11.x <= 10.11.13 fail to escape some variables that could contain malicious content during error page composition which allows an attacker with access to edit some site configuration to execute some malicious code via …
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Low 2.9
Astro: Server island encrypted parameters vulnerable to cross-component replay
Astro is a web framework. Astro versions prior to 6.1.10 used AES-GCM encryption to protect the confidentiality and integrity of server island props and slots parameters, but did not bind the ciphertext to its intended component or parameter type. An attacker…
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Low 2.3
Memory leak in Scribunto causes runJobs.php to run out of memory
Vulnerability in Wikimedia Foundation Scribunto. This issue affects Scribunto: from 1.45.0 before 1.45.2.
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Low 2.4
Devs Palace ERP Online chart-save cross site scripting
A vulnerability was identified in Devs Palace ERP Online up to 4.0.0. This impacts an unknown function of the file /accounts/chart-save. Such manipulation leads to cross site scripting. The attack may be performed from remote. The exploit is publicly availabl…
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Low 2.4
Devs Palace ERP Online mr-save cross site scripting
A security vulnerability has been detected in Devs Palace ERP Online up to 4.0.0. This vulnerability affects unknown code of the file /accounts/mr-save. Such manipulation leads to cross site scripting. The attack can be launched remotely. The exploit has been…
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Low 2.4
Devs Palace ERP Online add_new_customer cross site scripting
A weakness has been identified in Devs Palace ERP Online up to 4.0.0. This affects an unknown part of the file /inventory/add_new_customer. This manipulation causes cross site scripting. The attack can be initiated remotely. The exploit has been made availabl…
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Low 2.4
Devs Palace ERP Online sales_save cross site scripting
A security flaw has been discovered in Devs Palace ERP Online up to 4.0.0. Affected by this issue is some unknown functionality of the file /inventory/sales_save. The manipulation results in cross site scripting. It is possible to launch the attack remotely. …
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Low 2.4
Devs Palace ERP Online purchase_save cross site scripting
A vulnerability was identified in Devs Palace ERP Online up to 4.0.0. Affected by this vulnerability is an unknown functionality of the file /inventory/purchase_save. The manipulation leads to cross site scripting. It is possible to initiate the attack remote…
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Low 2.4
Devs Palace ERP Online item-save cross site scripting
A flaw has been found in Devs Palace ERP Online up to 4.0.0. This impacts an unknown function of the file /inventory/item-save. This manipulation causes cross site scripting. The attack is possible to be carried out remotely. The exploit has been published an…
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Low 2.4
Devs Palace ERP Online customer-save cross site scripting
A vulnerability was detected in Devs Palace ERP Online up to 4.0.0. This affects an unknown function of the file /inventory/customer-save. The manipulation results in cross site scripting. The attack can be executed remotely. The exploit is now public and may…
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Low 2.4
Devs Palace ERP Online supplier-save cross site scripting
A security vulnerability has been detected in Devs Palace ERP Online up to 4.0.0. The impacted element is an unknown function of the file /inventory/supplier-save. The manipulation leads to cross site scripting. Remote exploitation of the attack is possible. …
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Low 2.4
Devs Palace ERP Online purchase_return_save cross site scripting
A weakness has been identified in Devs Palace ERP Online up to 4.0.0. The affected element is an unknown function of the file /inventory/purchase_return_save. Executing a manipulation can lead to cross site scripting. The attack may be launched remotely. The …
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Low 2.3
Reflected XSS via backslash bypass in GraphiQL js_escape in absinthe_plug
Improper Neutralization of Input During Web Page Generation (XSS) vulnerability in absinthe-graphql absinthe_plug allows reflected cross-site scripting via the GraphiQL interface. 'Elixir.Absinthe.Plug.GraphiQL':js_escape/1 in lib/absinthe/plug/graphiql.ex es…
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Low 2.4
SourceCodester Pharmacy Sales and Inventory System index.php users cross site scripting
A flaw has been found in SourceCodester Pharmacy Sales and Inventory System 1.0. This affects an unknown part of the file /index.php?page=users. Executing a manipulation of the argument Name can lead to cross site scripting. The attack may be launched remotel…
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Low 3.5
kerwincui FastBee System Notice SysNoticeController.java add cross site scripting
A vulnerability was determined in kerwincui FastBee up to 1.2.1. The impacted element is the function Add of the file springboot/fastbee-admin/src/main/java/com/fastbee/web/controller/system/SysNoticeController.java of the component System Notice Handler. Thi…
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Low 3.5
LinkStackOrg LinkStack UserController.php editPage cross site scripting
A weakness has been identified in LinkStackOrg LinkStack up to 4.8.6. Impacted is the function editPage of the file app/Http/Controllers/UserController.php. Executing a manipulation of the argument pageDescription can lead to cross site scripting. It is possi…
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Low 3.5
SourceCodester Pharmacy Sales and Inventory System index.php customer cross site scripting
A vulnerability was detected in SourceCodester Pharmacy Sales and Inventory System 1.0. The impacted element is the function Customer of the file /index.php?page=customer. The manipulation of the argument Name results in cross site scripting. The attack may b…
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Low 2.4
SourceCodester Pizzafy Ecommerce System ajax.php save_user cross site scripting
A vulnerability was determined in SourceCodester Pizzafy Ecommerce System 1.0. This vulnerability affects the function save_user of the file /admin/ajax.php?action=save_user. Executing a manipulation of the argument Name can lead to cross site scripting. The …
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Low 2.4
SourceCodester Pizzafy Ecommerce System ajax.php save_order cross site scripting
A vulnerability was found in SourceCodester Pizzafy Ecommerce System 1.0. This affects the function save_order of the file /admin/ajax.php?action=save_order. Performing a manipulation of the argument first_name results in cross site scripting. Remote exploita…
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Low 2.4
SourceCodester Pizzafy Ecommerce System ajax.php save_menu cross site scripting
A vulnerability has been found in SourceCodester Pizzafy Ecommerce System 1.0. Affected by this issue is the function save_menu of the file /admin/ajax.php?action=save_menu. Such manipulation of the argument Name leads to cross site scripting. The attack may …
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Low 2.4
SourceCodester Pizzafy Ecommerce System index.php save_settings cross site scripting
A flaw has been found in SourceCodester Pizzafy Ecommerce System 1.0. Affected by this vulnerability is the function save_settings of the file /admin/index.php?page=save_settings. This manipulation of the argument Name causes cross site scripting. The attack …
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Low 2.4
SourceCodester Pharmacy Sales and Inventory System index.php supplier cross site scripting
A vulnerability was determined in SourceCodester Pharmacy Sales and Inventory System 1.0. The impacted element is the function supplier of the file /index.php?page=supplier. Executing a manipulation of the argument Name can lead to cross site scripting. The a…
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Low 2.4
SourceCodester Pharmacy Sales and Inventory System index.php cross site scripting
A vulnerability was found in SourceCodester Pharmacy Sales and Inventory System 1.0. Affected is an unknown function of the file /index.php?page=product. Performing a manipulation of the argument ID results in cross site scripting. It is possible to initiate …
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Low 3.5CVE-2026-7222 Public exploit
code-projects Coaching Management System Complaint Form complaint.php cross site scripting
A vulnerability was determined in code-projects Coaching Management System 1.0. Affected by this vulnerability is an unknown functionality of the file /cims/modules/student/complaint.php of the component Complaint Form Page. This manipulation of the argument …
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Low 3.5
code-projects Invoice System in Laravel item cross site scripting
A flaw has been found in code-projects Invoice System in Laravel 1.0. Affected is an unknown function of the file /item. Executing a manipulation of the argument item name/description can lead to cross site scripting. It is possible to launch the attack remot…
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Low 2.4
code-projects Chat System send_message.php cross site scripting
A vulnerability was detected in code-projects Chat System 1.0. This affects an unknown function of the file /admin/send_message.php of the component Chat Interface. The manipulation of the argument msg results in cross site scripting. The attack may be launch…
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Low 2.4
D-Link DSL-2740R Wireless Setup Section cross site scripting
A vulnerability was identified in D-Link DSL-2740R EU_01.15. Impacted is an unknown function of the component Wireless Setup Section. Such manipulation of the argument Wireless Network Name leads to cross site scripting. The attack can be executed remotely. T…