CWE-79: Improper Neutralization of Input During Web Page Generation (Cross-site Scripting), page 79
Filter
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.
What the weakness is: CWE-79 at MITRE
Related attack patterns (CAPEC): 6
- CAPEC-63 Cross-Site Scripting (XSS) Likelihood: High · Severity: Very High
- CAPEC-85 AJAX Footprinting Likelihood: High · Severity: Low
- CAPEC-209 XSS Using MIME Type Mismatch Severity: Medium
- CAPEC-588 DOM-Based XSS Likelihood: High · Severity: Very High
- CAPEC-591 Reflected XSS Likelihood: High · Severity: Very High
- CAPEC-592 Stored XSS Likelihood: High · Severity: Very High
The attack patterns MITRE's CAPEC relates to CWE-79, as MITRE names them. Credits.
Ask an AI about CWE-79
Show the prompt
Explain CWE-79: Improper Neutralization of Input During Web Page Generation and how to prevent and detect it in code. Use https://cwe.mitre.org/data/definitions/79.html and https://cve.bz/cve/cwe/79?via=ask-ai-copy for recent CVEs with this weakness. Cite the sources.Opens a third-party assistant; its answer is its own, not cve.bz's. The prompt holds only this weakness's id and public links.
- 1.9CVE-2026-15321EPSS 0.4%
A vulnerability was found in MyEMS up to 6.4.0. The affected element is the function on_post of the file myems-api/core/svg.py of the component Admin Backend. The manipulation of the argument new_values['data'] results in cross site script…
- 6.1CVE-2026-11392EPSS 0.4%
The WP Hotel Booking plugin for WordPress is vulnerable to Reflected Cross-Site Scripting via the 'check_in_date' and 'check_out_date' parameters in all versions up to, and including, 2.3.1 due to insufficient input sanitization and output…
- 2.0CVE-2026-15311EPSS 0.4%
A vulnerability was identified in NousResearch hermes-agent up to 2026.5.29.2. Affected by this issue is the function MatrixAdapter._markdown_to_html of the file gateway/platforms/matrix.py of the component Matrix Adapter. Such manipulatio…
- 8.6CVE-2026-59833EPSS 0.5%
SiYuan is an open-source personal knowledge management system. Prior to 3.7.1, SiYuan renders note and package content to HTML through the Lute engine with sanitization enabled, but Lute's dangerous javascript scheme block does not check f…
- 5.1CVE-2026-58144EPSS 0.2%
Cotonti Siena 0.9.26 and earlier contains a stored cross-site scripting vulnerability that allows authenticated users with PFS access to inject arbitrary script payloads by supplying malicious HTML in the ntitle parameter processed through…
- 7.4CVE-2026-55424EPSS 0.4%
Discourse is an open-source discussion platform. Prior to 2026.6.0, 2026.5.1, 2026.4.2, and 2026.1.5, a topic "featured link" was not sufficiently normalized and escaped before being rendered in the topic list, allowing a user who can set …
- 9.0CVE-2026-53963EPSS 0.7%
Discourse is an open-source discussion platform. Prior to 2026.6.0, 2026.5.1, 2026.4.2, and 2026.1.5, a malicious second factor name on an attacker-controlled account was not escaped in the delete confirmation dialog, allowing stored cross…
- 5.4CVE-2026-53962EPSS 0.4%
Discourse is an open-source discussion platform. Prior to 2026.6.0, 2026.5.1, 2026.4.2, and 2026.1.5, insufficient SVG sanitization in upload and user avatar handling could lead to cross-site scripting when a user visited specific URLs tha…
- 5.1CVE-2026-60120EPSS 0.4%
Bagisto before 2.4.4 contains a stored cross-site scripting vulnerability via client-side template injection that allows unauthenticated attackers to execute arbitrary JavaScript in administrator browsers by registering a customer account …
- 8.5CVE-2026-54002EPSS 0.5%
Kirby is an open-source content management system. Prior to 4.9.4 and 5.4.4, Kirby sites and plugins that use the writer or list fields or call Dom::sanitize(), Sane::sanitize(), Sane::Html::sanitize(), Sane::Svg::sanitize(), Sane::Xml::sa…
- 1.3CVE-2026-0279EPSS 0.8%
Multiple cross site scripting vulnerabilities in the User-ID™ Authentication Portal (aka Captive Portal) service, GlobalProtect™ gateway/portal features and Clientless VPN of Palo Alto Networks PAN-OS® software enables a malicious unauthen…
- 2.1CVE-2026-15202EPSS 0.4%
A security vulnerability has been detected in YzmCMS up to 7.5. Affected is the function get_url of the file /yzmphp/yzmphp.php of the component Header Handler. The manipulation of the argument HTTP_HOST leads to cross site scripting. The …
- 9.0CVE-2026-59214EPSS 0.4%
Open WebUI is an extensible, feature-rich, and user-friendly self-hosted AI platform. Prior to 0.10.0, Open WebUI runs client-side Python with Pyodide in a same-origin web worker, allowing stored chat payloads that use pyodide.http.pyfetch…
- 7.3CVE-2026-53987EPSS 0.5%
The Tag plugin for GLPI 11 before 2.14.4 stores the tag name without HTML sanitization and renders it into the Kanban badge markup via PluginTagTag::preKanbanContent() without output escaping, resulting in stored cross-site scripting. An a…
- 5.4CVE-2026-5005EPSS 0.2%
Improper neutralization of input during web page generation ('cross-site scripting') vulnerability in Twiser Informatics Technology Consulting, Trade and Education Inc. OKRs & Goals allows Stored XSS. This issue affects OKRs & Goals: from…
- 7.2CVE-2026-9253EPSS 0.3%
The WP Cost Estimation & Payment Forms Builder (E&P Forms) plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the 'customerInfos' parameter in all versions up to, and including, 10.5.97 due to insufficient input sanitiza…
- 7.2CVE-2026-13441EPSS 0.4%
The EventPrime – Events Calendar, Bookings and Tickets plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the 'new_event_type_background_color' parameter in all versions up to, and including, 4.3.4.2 due to insufficient …
- 6.1CVE-2026-5793EPSS 0.3%
Improper neutralization of input during web page generation ('cross-site scripting') vulnerability in Inrove Software and Internet Services BiEticaret allows Reflected XSS. This issue affects BiEticaret: before v3.3.57.
- 9.3CVE-2026-2342EPSS 0.4%
Improper neutralization of input during web page generation ('cross-site scripting') vulnerability in OceanicSoft Informatics Systems Ltd. ValeApp allows Stored XSS. This issue affects ValeApp: through 09072026. NOTE: The vendor was conta…
- 6.4CVE-2026-6910EPSS 0.3%
The Bookero.pl – system rezerwacji online plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the `bookero_products` shortcode's `hide_products` (and `filter_products`) attributes in versions up to and including 2.2. This…
- 6.4CVE-2026-4653EPSS 0.3%
The Block, Suspend, Report for BuddyPress plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the 'link' parameter in versions up to and including 3.6.4. This is due to insufficient input sanitization and output escaping.…
- 4.8CVE-2026-31981EPSS 0.3%
A Stored HTML Injection vulnerability was discovered in the Diagram tab and Graph view due to a shared input validation function being insufficiently restrictive. An authenticated user with administrative privileges can inject malicious HT…
- 7.2CVE-2026-15000EPSS 0.6%
The Connect Contact Form 7 and Mailchimp plugin for WordPress is vulnerable to Stored Cross-Site Scripting via Mailchimp Merge Field Values in all versions up to, and including, 0.9.78.06 due to insufficient input sanitization and output e…
- 6.4CVE-2026-14343EPSS 0.3%
The Download Manager plugin for WordPress is vulnerable to Stored Cross-Site Scripting via 'note_before' and 'note_after' Shortcode Attributes in all versions up to, and including, 3.3.61 due to insufficient input sanitization and output e…
- 6.4CVE-2026-13771EPSS 0.4%
The Customer Reviews for WooCommerce plugin for WordPress is vulnerable to Stored Cross-Site Scripting via 'color' Shortcode Attribute in all versions up to, and including, 5.113.0 due to insufficient input sanitization and output escaping…
- 6.1CVE-2026-13334EPSS 0.4%
The Mang Board WP plugin for WordPress is vulnerable to Reflected Cross-Site Scripting via the 'stag' parameter in all versions up to, and including, 2.3.4 due to insufficient input sanitization and output escaping. This makes it possible …
- 6.4CVE-2026-13253EPSS 0.4%
The Ultimate Post plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the 'moreResultsText' block attribute of the ultimate-post/advanced-search block in versions up to and including 5.0.31. This is due to insufficient in…
- 6.4CVE-2026-12170EPSS 0.3%
The AcyMailing – An Ultimate Newsletter Plugin and Marketing Automation Solution for WordPress plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the 'alignment' attribute in all versions up to, and including, 10.10.2 du…
- 6.1CVE-2026-47646EPSS 0.5%
Improper neutralization of input during web page generation ('cross-site scripting') in Dynamics 365 Customer Voice allows an unauthorized attacker to perform spoofing over a network.
- 6.1CVE-2026-15128EPSS 0.2%
Inappropriate implementation in Forms in Google Chrome prior to 150.0.7871.115 allowed a remote attacker to inject arbitrary scripts or HTML (UXSS) via a crafted HTML page. (Chromium security severity: High)
- 6.1CVE-2026-15127EPSS 0.2%
Inappropriate implementation in WebGL in Google Chrome prior to 150.0.7871.115 allowed a remote attacker to inject arbitrary scripts or HTML (UXSS) via a crafted HTML page. (Chromium security severity: High)
- 5.9CVE-2026-5922EPSS 0.4%
The IP phone might use malicious input stored in configuration parameters and render it as content for the WebUI’s webpage.
- 6.1CVE-2026-55877EPSS 0.3%
Symfony UX is a JavaScript ecosystem for Symfony. From 2.17.0 before 2.36.1 and from 3.0.0 before 3.2.0, the ux_icon() Twig function is marked is_safe=['html'] and Icon::toHtml() inlines SVG source verbatim, allowing unsanitized local SVG …
- 5.4CVE-2026-6896EPSS 0.4%
GitLab has remediated an issue in GitLab EE affecting all versions from 13.11 before 18.11.7, 19.0 before 19.0.4, and 19.1 before 19.1.2 that under certain conditions could have allowed an authenticated user with developer-role permissions…
- 6.1CVE-2026-58191ExploitEPSS 0.6%
Appium is a cross-platform automation framework for all kinds of apps, built on top of the W3C WebDriver protocol. Prior to 10.7.0, Appium's base-driver unconditionally mounts the /test/guinea-pig, /test/guinea-pig-scrollable, and /test/gu…
- 8.7CVE-2026-55596EPSS 0.3%
Plate is a rich-text editor with AI and shadcn/ui. From 53.0.0 until 53.1.4, the media embed renderer trusts serialized provider or sourceUrl metadata in useMediaState and skips parseMediaUrl protocol validation, allowing a crafted Plate d…
- 9.3CVE-2026-54527EPSS 0.5%
JupyterLab Git is a Git extension for JupyterLab. From 0.30.0b3 before 0.54.0, the PlainTextDiff.ts createHeader() method passes Git filenames directly to innerHTML when rendering renamed files in commit history, allowing a crafted filenam…
- 5.4CVE-2026-13320EPSS 0.4%
GitLab has remediated an issue in GitLab CE/EE affecting all versions from 15.7 before 18.11.7, 19.0 before 19.0.4, and 19.1 before 19.1.2 that under certain conditions could have allowed an authenticated user to execute arbitrary scripts …
- 6.1CVE-2026-59929EPSS 0.3%
Mistune is a Python Markdown parser with renderers and plugins. Prior to 3.3.0, the safe_url filter in src/mistune/renderers/html.py blocks only javascript:, vbscript:, file:, and data: schemes, allowing legacy or chained schemes such as f…
- 5.3CVE-2026-59926EPSS 0.3%
Mistune is a Python Markdown parser with renderers and plugins. Prior to 3.2.1, render_admonition() in src/mistune/directives/admonition.py concatenates the Admonition directive :class: option into the HTML class attribute without escaping…
- 6.1CVE-2026-59923EPSS 0.3%
Mistune is a Python Markdown parser with renderers and plugins. Prior to 3.3.0, HTMLRenderer.safe_url() does not block percent-encoded javascript URIs, allowing attacker-supplied Markdown links or images to bypass URL protections and execu…
- 6.1CVE-2026-59895EPSS 0.3%
Hono is a Web application framework that provides support for any JavaScript runtime. From 4.0.0 before 4.12.27, cx() in hono/css composes class names from plain strings but marks the result as already escaped without HTML-escaping the inp…
- 5.0CVE-2026-57439EPSS 0.1%
CyberChef is a web app for encryption, encoding, compression, and data analysis. Prior to 11.2.0, the Series Chart operation accepts __proto__ as a key while parsing user-supplied CSV, allowing prototype pollution that can be chained with …
- 5.4CVE-2026-11903EPSS 0.4%
Improper neutralization of input during web page generation ('cross-site scripting') vulnerability in Progress MOVEit Transfer (Ad Hoc module). This issue affects MOVEit Transfer: from 2026.0.0 before 2026.0.1, from 2025.1.0 before 2025.1…
- 5.1CVE-2026-60092EPSS 0.3%
AVideo (Meet plugin) through commit e8d6119f3cb1b849149906efeb0a41fc024f59f8 contains a stored cross-site scripting vulnerability in the Meet plugin's getMeetInfo.json.php endpoint. When a participant joins a public meeting, the raw HTTP U…
- 4.8CVE-2026-58657EPSS 0.3%
Grav before 2.0.0 (affected through 2.0.0-rc.9 and the 2.0 branch) contains a stored CSS injection vulnerability in the Markdown image resize() media action. Prior media hardening rejects direct ?style= payloads and unsafe attribute() fall…
- 4.8CVE-2026-56359EPSS 0.2%
n8n before 2.8.0 contains a cross-site scripting vulnerability in the credential management flow where authenticated users can inject malicious JavaScript URLs into OAuth2 credential Authorization URL fields. Attackers can craft malicious …
- 4.8CVE-2026-56283EPSS 0.2%
Capgo before 12.128.2 contains an html injection vulnerability in the organization settings endpoint that allows attackers to inject malicious HTML content. Attackers can craft payloads in the organization name field to redirect users to u…
- 7.1CVE-2026-41122EPSS 0.3%
Dell PowerProtect Data Domain, versions 7.7.1.0 through 8.7, LTS2026 release version 8.6.1.0 through 8.6.1.10, LTS2025 release version 8.3.1.0 through 8.3.1.30, LTS2024 release versions 7.13.1.0 through 7.13.1.70 contain a stored cross-sit…
- 5.4CVE-2026-8315EPSS 0.2%
Improper neutralization of input during web page generation ('cross-site scripting') vulnerability in Webbeyaz Web Design Mediküm Web allows Stored XSS. This issue affects Mediküm Web: through 08072026. NOTE: The vendor was contacted and …