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CWE-80

620 CVEs • Abstraction: Variant • Likelihood of Exploit: High

Improper Neutralization of Script-Related HTML Tags in a Web Page (Basic XSS)

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.

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CVEs (620)

CVE
VENDORS
PRODUCTS
UPDATED
PUBLISHED
CVSS
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Jul 10, 2026
Jul 10, 2026
5.1 MEDIUM· v4
N/A· v3
N/A· v2
PeerTube is an ActivityPub-federated video streaming platform. Prior to 8.2.2, server-side-rendered video watch pages embed a schema.org JSON-LD block by JSON.stringify-ing video metadata without escaping less-than, grea...Show more
PeerTube is an ActivityPub-federated video streaming platform. Prior to 8.2.2, server-side-rendered video watch pages embed a schema.org JSON-LD block by JSON.stringify-ing video metadata without escaping less-than, greater-than, or slash characters, allowing a value containing the byte sequence that closes a script element to inject arbitrary HTML or JavaScript that executes in the instance origin for visitors to the attacker's videos. This issue is fixed in version 8.2.2.Show less
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Jul 14, 2026
Jul 9, 2026
8.6 HIGH· v4
N/A· v3
N/A· v2
SiYuan is an open-source personal knowledge management system. Prior to 3.7.1, Asset.render in app/src/asset/index.ts interpolates the unsanitized this.path value into HTML assigned to innerHTML, allowing a crafted asset...Show more
SiYuan is an open-source personal knowledge management system. Prior to 3.7.1, Asset.render in app/src/asset/index.ts interpolates the unsanitized this.path value into HTML assigned to innerHTML, allowing a crafted asset link containing a double quote to break out of the src attribute, inject an event handler, and execute JavaScript that can run OS commands in the Electron renderer. This issue is fixed in versions 3.7.1-alpha.2 and 3.7.1.Show less
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Jul 7, 2026
Jul 7, 2026
N/A· v4
6.1 MEDIUM· v3
N/A· v2
Improper neutralization of Script-Related HTML tags in a web page (basic XSS) vulnerability in Armiya Information Technologies Ltd. Co. Access Control System (GKS) allows XSS Targeting HTML Attributes. This issue affect...Show more
Improper neutralization of Script-Related HTML tags in a web page (basic XSS) vulnerability in Armiya Information Technologies Ltd. Co. Access Control System (GKS) allows XSS Targeting HTML Attributes. This issue affects Access Control System (GKS): before Version 2.Show less
1Ibm
1Watsonx.data Intelligence
Sep 29, 2026
Jun 30, 2026
N/A· v4
5.7 MEDIUM· v3
N/A· v2
IBM watsonx.data intelligence 5.2.0, 5.2.1, 5.2.2, 5.3.0 is vulnerable to HTML injection. A remote attacker could inject malicious HTML code, which when viewed, would be executed in the victim's Web browser within the se...Show more
IBM watsonx.data intelligence 5.2.0, 5.2.1, 5.2.2, 5.3.0 is vulnerable to HTML injection. A remote attacker could inject malicious HTML code, which when viewed, would be executed in the victim's Web browser within the security context of the hosting site.Show less
1Apache
1Tomcat
Jul 2, 2026
Jun 29, 2026
N/A· v4
6.1 MEDIUM· v3
N/A· v2
Improper Neutralization of Script-Related HTML Tags in a Web Page (Basic XSS) vulnerability in the number guess example for Apache Tomcat. This issue affects Apache Tomcat: from 11.0.0-M1 through 11.0.22, from 10.1.0-M1...Show more
Improper Neutralization of Script-Related HTML Tags in a Web Page (Basic XSS) vulnerability in the number guess example for Apache Tomcat. This issue affects Apache Tomcat: from 11.0.0-M1 through 11.0.22, from 10.1.0-M1 through 10.1.55, from 9.0.0.M1 through 9.0.118, from 8.5.0 through 8.5.100, from 7.0.0 through 7.0.109. Other versions that have reached end of support may also be affected. Users are recommended to upgrade to version 11.0.23, 10.1.56 or 9.0.119, which fix the issue.Show less
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Oct 5, 2026
Jun 26, 2026
N/A· v4
5.3 MEDIUM· v3
N/A· v2
Unauthenticated Content Injection in Auros Core <= 5.3.1 versions.
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Jun 25, 2026
Jun 25, 2026
2.1 LOW· v4
N/A· v3
N/A· v2
Content injected to PDF rendering contexts could, in many places, include HTML content including <img> tags. If the src attribute of these images pointed to an URL, the PDF rendering engine would download the image fro...Show more
Content injected to PDF rendering contexts could, in many places, include HTML content including <img> tags. If the src attribute of these images pointed to an URL, the PDF rendering engine would download the image from that place and display it, thereby leaking information about the rendering server and possibly creating an SSRF vector in the local network.Show less
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Jun 25, 2026
Jun 25, 2026
2.1 LOW· v4
N/A· v3
N/A· v2
Malicious HTML content could be injected into the content of a page in the pretix-pages plugin.
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Jun 25, 2026
Jun 25, 2026
2.1 LOW· v4
N/A· v3
N/A· v2
Malicious HTML content could be injected into the page pretix shows when redirection to an untrusted page occurs. Since this page has a Content-Security-Policy, this can mainly be used for phishing purposes.
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Jun 25, 2026
Jun 25, 2026
8.8 HIGH· v4
N/A· v3
N/A· v2
Malicious HTML content contained in the layout specification of a PDF ticket or badge layout was executed when the PDF editor is opened in the browser. This could allow one backend user to inject JavaScript into the b...Show more
Malicious HTML content contained in the layout specification of a PDF ticket or badge layout was executed when the PDF editor is opened in the browser. This could allow one backend user to inject JavaScript into the browser context of another backend user. Due to requirements of the PDF rendering and editing libraries used, this is one of the few pages in our backend that do not have a strong Content-Security-Policy that would render this capability useless for most scenarios.Show less
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Jun 25, 2026
Jun 25, 2026
2.0 LOW· v4
N/A· v3
N/A· v2
Malicious HTML content could be injected into the content rendered by the pretix-digital plugin.
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Jun 25, 2026
Jun 25, 2026
5.3 MEDIUM· v4
N/A· v3
N/A· v2
Malicious HTML content could be injected into the email address of an order, which pretix showed without sanitization on the confirmation page for individual tickets in that order.
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Jun 25, 2026
Jun 24, 2026
5.4 MEDIUM· v4
N/A· v3
N/A· v2
Gogs is an open source self-hosted Git service. Prior to 0.14.3, the Jupyter Notebook (ipynb) sanitizer endpoint at POST /-/api/sanitize_ipynb allows arbitrary data: URIs without proper restrictions, potentially leading...Show more
Gogs is an open source self-hosted Git service. Prior to 0.14.3, the Jupyter Notebook (ipynb) sanitizer endpoint at POST /-/api/sanitize_ipynb allows arbitrary data: URIs without proper restrictions, potentially leading to Cross-Site Scripting (XSS). The endpoint uses bluemonday.UGCPolicy() with p.AllowURLSchemes("data") which permits all data URI schemes including data:text/html, enabling attackers to inject malicious HTML/JavaScript. Additionally, the endpoint has no authentication middleware, allowing any registered user to exploit this vulnerability. This vulnerability is fixed in 0.14.3.Show less
1Astro
1Astro
Jun 23, 2026
Jun 22, 2026
N/A· v4
6.1 MEDIUM· v3
N/A· v2
Astro is a web framework. Prior to 6.3.3, when a component uses a client:* directive, Astro inserts named slot content into a data-astro-template attribute without HTML escaping the slot name allowing an attacker to brea...Show more
Astro is a web framework. Prior to 6.3.3, when a component uses a client:* directive, Astro inserts named slot content into a data-astro-template attribute without HTML escaping the slot name allowing an attacker to break out of the attribute context and inject arbitrary HTML, resulting in reflected XSS during SSR. This vulnerability is fixed in 6.3.3.Show less
1Apache
1Atlas
Oct 6, 2026
Jun 22, 2026
N/A· v4
5.4 MEDIUM· v3
N/A· v2
An authenticated user can perform XSS. This issue affects Apache Atlas versions 2.4.0 and earlier. Users are recommended to upgrade to version 2.5.0, which fixes the issue.
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Jun 23, 2026
Jun 21, 2026
2.0 LOW· v4
3.5 LOW· v3
4.0 MEDIUM· v2
A security vulnerability has been detected in Radware Cyber Controller up to 10.11.0. This affects an unknown part of the component HTML Report Generation. The manipulation leads to HTML injection. Remote exploitation of...Show more
A security vulnerability has been detected in Radware Cyber Controller up to 10.11.0. This affects an unknown part of the component HTML Report Generation. The manipulation leads to HTML injection. Remote exploitation of the attack is possible. The exploit has been disclosed publicly and may be used. The vendor was contacted early about this disclosure but did not respond in any way.Show less
1Flowiseai
1Flowise
Oct 19, 2026
Jun 20, 2026
5.1 MEDIUM· v4
6.1 MEDIUM· v3
N/A· v2
Flowise before 3.0.8 contains a cross-site scripting (XSS) vulnerability caused by insufficient input filtering in chat messages and custom agent functions. An attacker can inject malicious JavaScript by sending an ifram...Show more
Flowise before 3.0.8 contains a cross-site scripting (XSS) vulnerability caused by insufficient input filtering in chat messages and custom agent functions. An attacker can inject malicious JavaScript by sending an iframe payload (e.g., <iframe src="javascript:alert(document.cookie)">) in a chat box, or by having a custom agent function return an XSS payload from an external website. The injected script executes in the victim's browser, enabling theft of cookies and session data.Show less
1Commenthol
1Md Fileserver
Aug 12, 2026
Jun 9, 2026
N/A· v4
6.1 MEDIUM· v3
N/A· v2
md-fileserver allows for local viewing of markdown files in a browser. Prior to version 1.10.3, a cross-site scripting (XSS) vulnerability exists in the application’s Markdown rendering logic. When user-supplied Markdown...Show more
md-fileserver allows for local viewing of markdown files in a browser. Prior to version 1.10.3, a cross-site scripting (XSS) vulnerability exists in the application’s Markdown rendering logic. When user-supplied Markdown content is rendered, embedded raw HTML—including <script> tags—is processed and injected into the resulting page without sanitization, allowing arbitrary JavaScript execution in the context of the affected domain. This issue has been patched in version 1.10.3.Show less
1Apache
1Answer
Jun 17, 2026
Jun 9, 2026
N/A· v4
5.4 MEDIUM· v3
N/A· v2
Improper Neutralization of Script-Related HTML Tags in a Web Page (Basic XSS) vulnerability in Apache Answer. This issue affects Apache Answer: through 2.0.0. User-supplied content was included in notification emails w...Show more
Improper Neutralization of Script-Related HTML Tags in a Web Page (Basic XSS) vulnerability in Apache Answer. This issue affects Apache Answer: through 2.0.0. User-supplied content was included in notification emails without proper escaping, allowing authenticated users to inject arbitrary HTML into emails sent to other users. Users are recommended to upgrade to version 2.0.1, which fixes the issue.Show less
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Jul 23, 2026
Jun 8, 2026
2.0 LOW· v4
3.5 LOW· v3
4.0 MEDIUM· v2
A weakness has been identified in Bolt CMS up to 3.7.5. This vulnerability affects unknown code of the file src/Storage/Field/Type/TextType.php of the component HTML Attribute Handler. Executing a manipulation of the arg...Show more
A weakness has been identified in Bolt CMS up to 3.7.5. This vulnerability affects unknown code of the file src/Storage/Field/Type/TextType.php of the component HTML Attribute Handler. Executing a manipulation of the argument style can lead to HTML injection. It is possible to launch the attack remotely. The exploit has been made available to the public and could be used for attacks. The GitHub repository was archived by the owner and is now read-only. This vulnerability only affects products that are no longer supported by the maintainer.Show less