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 3.5
Portabilis i-Educar educar_funcao_lst.php cross site scripting
A vulnerability was found in Portabilis i-Educar 2.9. It has been classified as problematic. Affected is an unknown function of the file /intranet/educar_funcao_lst.php. The manipulation of the argument nm_funcao/abreviatura leads to cross site scripting. It …
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Low 3.5
495300897 wx-shop editUI cross site scripting
A vulnerability was found in 495300897 wx-shop up to de1b66331368695779cfc6e4d11a64caddf8716e and classified as problematic. This issue affects some unknown processing of the file /user/editUI. The manipulation leads to cross site scripting. The attack may be…
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Low 3.5
code-projects Human Resource Integrated System action.php cross site scripting
A vulnerability classified as problematic has been found in code-projects Human Resource Integrated System 1.0. Affected is an unknown function of the file /insert-and-view/action.php. The manipulation of the argument content leads to cross site scripting. It…
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Low 3.5
HPE Telco Service Activator, Protection Mechanism Failure
Cross-site scripting vulnerability has been identified in HPE Telco Service Activator product
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Low 3.5
HPE Telco Service Activator, Protection Mechanism Failure
Cross-site scripting vulnerability has been identified in HPE Telco Service Activator product
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Low 3.5
Campcodes Online Hotel Reservation System add_query_account.php cross site scripting
A vulnerability classified as problematic was found in Campcodes Online Hotel Reservation System 1.0. This vulnerability affects unknown code of the file /admin/add_query_account.php. The manipulation of the argument Name leads to cross site scripting. The at…
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Low 3.5
Portabilis i-Educar atendidos_cad.php cross site scripting
A vulnerability was found in Portabilis i-Educar 2.10. It has been declared as problematic. Affected by this vulnerability is an unknown functionality of the file atendidos_cad.php. The manipulation of the argument nome/nome_social/email leads to cross site s…
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Low 2.4
code-projects Simple Car Rental System add_vehicles.php cross site scripting
A vulnerability, which was classified as problematic, has been found in code-projects Simple Car Rental System 1.0. This issue affects some unknown processing of the file /admin/add_vehicles.php. The manipulation of the argument car_name leads to cross site s…
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Low 3.5
jerryshensjf JPACookieShop 蛋糕商城JPA版 GoodsController.java cross site scripting
A vulnerability, which was classified as problematic, has been found in jerryshensjf JPACookieShop 蛋糕商城JPA版 up to 24a15c02b4f75042c9f7f615a3fed2ec1cefb999. Affected by this issue is some unknown functionality of the file GoodsController.java. The manipulation…
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Low 3.5
Roothub SystemConfigAdminController.java edit cross site scripting
A vulnerability was found in Roothub up to 2.6. It has been declared as problematic. Affected by this vulnerability is the function Edit of the file src/main/java/cn/roothub/web/admin/SystemConfigAdminController.java. The manipulation leads to cross site scri…
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Low 3.1
Comodo Dragon IP DNS Leakage Detector cross site scripting
A vulnerability, which was classified as problematic, was found in Comodo Dragon up to 134.0.6998.179. This affects an unknown part of the component IP DNS Leakage Detector. The manipulation leads to cross site scripting. It is possible to initiate the attack…
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Low 3.5CVE-2025-8191 Public exploit
macrozheng mall Swagger UI index.html cross site scripting
A vulnerability, which was classified as problematic, was found in macrozheng mall up to 1.0.3. Affected is an unknown function of the file /swagger-ui/index.html of the component Swagger UI. The manipulation of the argument configUrl leads to cross site scri…
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Low 3.5
code-projects Church Donation System edit_members.php cross site scripting
A vulnerability was found in code-projects Church Donation System 1.0. It has been declared as problematic. Affected by this vulnerability is an unknown functionality of the file /admin/edit_members.php. The manipulation of the argument fname leads to cross s…
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Low 3.5CVE-2025-8155 EPSS 25%
D-Link DCS-6010L Management Application vb.htm cross site scripting
A vulnerability has been found in D-Link DCS-6010L 1.15.03 and classified as problematic. Affected by this vulnerability is an unknown functionality of the file /vb.htm of the component Management Application. The manipulation of the argument paratest leads t…
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Low 3.5
PHPGurukul Taxi Stand Management System new-autoortaxi-entry-form.php cross site scripting
A vulnerability has been found in PHPGurukul Taxi Stand Management System 1.0 and classified as problematic. Affected by this vulnerability is an unknown functionality of the file /admin/new-autoortaxi-entry-form.php. The manipulation of the argument registra…
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Low 2.0
Poly Clariti Manager - Multiple Security Vulnerabilities
A potential security vulnerability has been identified in the Poly Clariti Manager for versions prior to 10.12.2. The vulnerability could allow a bypass of the application's XSS filter by submitting untrusted characters. HP has addressed the issue in the late…
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Low 3.5
code-projects Public Chat Room send_message.php cross site scripting
A vulnerability classified as problematic has been found in code-projects Public Chat Room 1.0. This affects an unknown part of the file /send_message.php. The manipulation of the argument chat_msg/your_name leads to cross site scripting. It is possible to in…
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Low 3.5
PHPGurukul Taxi Stand Management System admin-profile.php cross site scripting
A vulnerability has been found in PHPGurukul Taxi Stand Management System 1.0 and classified as problematic. Affected by this vulnerability is an unknown functionality of the file /admin/admin-profile.php. The manipulation of the argument adminname leads to c…
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Low 3.5
PHPGurukul Time Table Generator System profile.php cross site scripting
A vulnerability, which was classified as problematic, was found in PHPGurukul Time Table Generator System 1.0. Affected is an unknown function of the file /admin/profile.php. The manipulation of the argument adminname leads to cross site scripting. It is poss…
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Low 3.5
PHPGurukul Online Banquet Booking System booking-search.php cross site scripting
A vulnerability, which was classified as problematic, was found in PHPGurukul Online Banquet Booking System 1.0. This affects an unknown part of the file /admin/booking-search.php. The manipulation of the argument searchdata leads to cross site scripting. It …
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Low 3.5
PHPGurukul Online Banquet Booking System admin-profile.php cross site scripting
A vulnerability classified as problematic was found in PHPGurukul Online Banquet Booking System 1.0. Affected by this vulnerability is an unknown functionality of the file /admin/admin-profile.php. The manipulation of the argument adminname leads to cross sit…
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Low 3.5
yangzongzhuan RuoYi SysNoticeController.java addSave cross site scripting
A vulnerability classified as problematic has been found in yangzongzhuan RuoYi up to 4.8.1. Affected is the function addSave of the file com/ruoyi/web/controller/system/SysNoticeController.java. The manipulation leads to cross site scripting. It is possible …
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Low 3.5
Portabilis i-Diario justificativas-de-falta cross site scripting
A weakness has been identified in Portabilis i-Diario 1.5.0. This affects an unknown function of the file /justificativas-de-falta. Executing a manipulation of the argument Justificativa can lead to cross site scripting. The attack may be launched remotely. T…
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Low 3.5
Portabilis i-Diario conteudos cross site scripting
A security flaw has been discovered in Portabilis i-Diario 1.5.0. The impacted element is an unknown function of the file /conteudos. Performing a manipulation of the argument filter[by_description] results in cross site scripting. The attack may be initiated…
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Low 3.5
Portabilis i-Diario justificativas-de-falta Endpoint doc_uploader.rb cross site scripting
A vulnerability was identified in Portabilis i-Diario 1.5.0. The affected element is an unknown function of the file app/uploaders/doc_uploader.rb of the component justificativas-de-falta Endpoint. Such manipulation of the argument Anexo leads to cross site s…
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Low 3.5
Portabilis i-Educar Turma Module educar_turma_tipo_det.php cross site scripting
A vulnerability, which was classified as problematic, has been found in Portabilis i-Educar 2.9.0. Affected by this issue is some unknown functionality of the file intranet/educar_turma_tipo_det.php?cod_turma_tipo=ID of the component Turma Module. The manipul…
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Low 3.5
Portabilis i-Educar Calendar educar_calendario_dia_motivo_cad.php cross site scripting
A vulnerability was found in Portabilis i-Educar up to 2.10. This issue affects some unknown processing of the file /intranet/educar_calendario_dia_motivo_cad.php of the component Calendar Module. The manipulation of the argument Motivo/descricao results in c…
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Low 3.5
Portabilis i-Educar Agenda agenda.php cross site scripting
A vulnerability has been found in Portabilis i-Educar 2.9.0/2.10.0. This vulnerability affects unknown code of the file /intranet/agenda.php of the component Agenda Module. The manipulation of the argument novo_titulo/novo_descricao leads to cross site script…
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Low 3.5
Portabilis i-Educar Disabilities Module educar_deficiencia_lst.php cross site scripting
A vulnerability was found in Portabilis i-Educar 2.9.0. It has been rated as problematic. This issue affects some unknown processing of the file /intranet/educar_deficiencia_lst.php of the component Disabilities Module. The manipulation of the argument Defici…
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Low 3.5
thinkgem JeeSite XSS Filter EncodeUtils.java xssFilter cross site scripting
A vulnerability was found in thinkgem JeeSite up to 5.12.0. It has been declared as problematic. This vulnerability affects the function xssFilter of the file src/main/java/com/jeesite/common/codec/EncodeUtils.java of the component XSS Filter. The manipulatio…
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Low 3.5
PHPGurukul Apartment Visitors Management System HTTP POST Request admin-profile.php cross site scripting
A vulnerability classified as problematic has been found in PHPGurukul Apartment Visitors Management System 1.0. This affects an unknown part of the file /admin-profile.php of the component HTTP POST Request Handler. The manipulation of the argument adminname…
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Low 3.5
PHPGurukul Apartment Visitors Management System HTTP POST Request bwdates-passreports-details.php cross site scripting
A vulnerability was found in PHPGurukul Apartment Visitors Management System 1.0. It has been rated as problematic. Affected by this issue is some unknown functionality of the file bwdates-passreports-details.php of the component HTTP POST Request Handler. Th…
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Low 3.5
PHPGurukul Apartment Visitors Management System HTTP POST Request pass-details.php cross site scripting
A vulnerability was found in PHPGurukul Apartment Visitors Management System 1.0. It has been declared as problematic. Affected by this vulnerability is an unknown functionality of the file pass-details.php of the component HTTP POST Request Handler. The mani…
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Low 3.5CVE-2025-7840 Public exploit
Campcodes Online Movie Theater Seat Reservation System Reserve Your Seat Page index.php cross site scripting
A vulnerability was found in Campcodes Online Movie Theater Seat Reservation System 1.0. It has been classified as problematic. This affects an unknown part of the file /index.php?page=reserve of the component Reserve Your Seat Page. The manipulation of the a…
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Low 2.4
PHPGurukul Apartment Visitors Management System HTTP POST Request create-pass.php cross site scripting
A vulnerability was found in PHPGurukul Apartment Visitors Management System 1.0. It has been classified as problematic. This affects an unknown part of the file /create-pass.php of the component HTTP POST Request Handler. The manipulation of the argument vis…
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Low 3.5
PHPGurukul Apartment Visitors Management System HTTP POST Request category.php cross site scripting
A vulnerability was found in PHPGurukul Apartment Visitors Management System 1.0 and classified as problematic. Affected by this issue is some unknown functionality of the file /category.php of the component HTTP POST Request Handler. The manipulation of the …
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Low 3.5
PHPGurukul Apartment Visitors Management System HTTP POST Request bwdates-reports.php cross site scripting
A vulnerability has been found in PHPGurukul Apartment Visitors Management System 1.0 and classified as problematic. Affected by this vulnerability is an unknown functionality of the file /bwdates-reports.php of the component HTTP POST Request Handler. The ma…
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Low 3.5
PHPGurukul Apartment Visitors Management System HTTP POST Request visitor-detail.php cross site scripting
A vulnerability, which was classified as problematic, was found in PHPGurukul Apartment Visitors Management System 1.0. Affected is an unknown function of the file /visitor-detail.php of the component HTTP POST Request Handler. The manipulation of the argumen…
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Low 2.4
PHPGurukul Apartment Visitors Management System HTTP POST Request manage-newvisitors.php cross site scripting
A vulnerability, which was classified as problematic, has been found in PHPGurukul Apartment Visitors Management System 1.0. This issue affects some unknown processing of the file /manage-newvisitors.php of the component HTTP POST Request Handler. The manipul…
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Low 3.5
descreekert wx-discuz wx.php validToken cross site scripting
A vulnerability was found in descreekert wx-discuz up to 12bd4745c63ec203cb32119bf77ead4a923bf277. It has been classified as problematic. This affects the function validToken of the file /wx.php. The manipulation of the argument echostr leads to cross site sc…