CWE-80
AllowedImproper Neutralization of Script-Related HTML Tags in a Web Page (Basic XSS)
Abstraction: Variant · Status: Incomplete
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.
975 vulnerabilities reference this CWE, most recent first.
CVE-2014-2353 (GCVE-0-2014-2353)
Vulnerability from cvelistv5 – Published: 2014-05-30 23:00 – Updated: 2025-10-03 16:30| URL | Tags |
|---|---|
| https://www.cisa.gov/news-events/ics-advisories/i… | |
| http://cogentdatahub.com/Download_Software.html | |
| http://ics-cert.us-cert.gov/advisories/ICSA-14-149-02 | x_refsource_MISCx_transferred |
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CVE-2008-10001 (GCVE-0-2008-10001)
Vulnerability from cvelistv5 – Published: 2022-03-28 20:45 – Updated: 2025-04-15 14:45 Unsupported When Assigned- CWE-80 - Basic Cross Site Scripting
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|---|---|
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| Vendor | Product | Version | |
|---|---|---|---|
| Pro2col | Stingray FTS |
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n/a
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CVE-2003-5003 (GCVE-0-2003-5003)
Vulnerability from cvelistv5 – Published: 2022-03-28 20:45 – Updated: 2024-08-08 02:35 Unsupported When Assigned- CWE-80 - Basic Cross Site Scripting
| URL | Tags |
|---|---|
| https://vuldb.com/?id.296 | x_refsource_MISC |
| Vendor | Product | Version | |
|---|---|---|---|
| ISS | BlackICE PC Protection |
Affected:
n/a
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GHSA-258W-34PG-5724
Vulnerability from github – Published: 2025-01-24 18:31 – Updated: 2026-04-01 18:33Improper Neutralization of Script-Related HTML Tags in a Web Page (Basic XSS) vulnerability in Listamester Listamester allows Stored XSS. This issue affects Listamester: from n/a through 2.3.4.
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GHSA-25PX-GJ7M-W9M3
Vulnerability from github – Published: 2026-04-02 00:31 – Updated: 2026-04-02 00:31IBM Aspera Shares 1.9.9 through 1.11.0 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.
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GHSA-26CW-37FF-MMW4
Vulnerability from github – Published: 2026-08-12 18:31 – Updated: 2026-08-12 21:31XSS vulnerability in code display in Apache Allura.
This issue affects Apache Allura: before 1.19.1.
Users are recommended to upgrade to version 1.19.1, which fixes the issue.
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{
"type": "WEB",
"url": "http://www.openwall.com/lists/oss-security/2026/08/12/17"
}
],
"schema_version": "1.4.0",
"severity": [
{
"score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N",
"type": "CVSS_V3"
}
]
}
GHSA-26FM-JH3J-2WW5
Vulnerability from github – Published: 2025-05-22 18:31 – Updated: 2025-05-22 18:31IBM Aspera Faspex 5.0.0 through 5.0.12 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.
{
"affected": [],
"aliases": [
"CVE-2025-33138"
],
"database_specific": {
"cwe_ids": [
"CWE-79",
"CWE-80"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2025-05-22T17:15:23Z",
"severity": "MODERATE"
},
"details": "IBM Aspera Faspex 5.0.0 through 5.0.12 is vulnerable to HTML injection. A remote attacker could inject malicious HTML code, which when viewed, would be executed in the victim\u0027s Web browser within the security context of the hosting site.",
"id": "GHSA-26fm-jh3j-2ww5",
"modified": "2025-05-22T18:31:15Z",
"published": "2025-05-22T18:31:15Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2025-33138"
},
{
"type": "WEB",
"url": "https://www.ibm.com/support/pages/node/7234114"
}
],
"schema_version": "1.4.0",
"severity": [
{
"score": "CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N",
"type": "CVSS_V3"
}
]
}
GHSA-26Q7-G57V-MXCP
Vulnerability from github – Published: 2018-11-07 00:28 – Updated: 2020-08-31 18:19Affected versions of shout do not escape the /topic command in messages, and are therefore vulnerable to cross-site scripting.
Recommendation
Update to version 0.50.0 or later.
{
"affected": [
{
"database_specific": {
"last_known_affected_version_range": "\u003c= 0.49.3"
},
"package": {
"ecosystem": "npm",
"name": "shout"
},
"ranges": [
{
"events": [
{
"introduced": "0.44.0"
},
{
"fixed": "0.50.0"
}
],
"type": "ECOSYSTEM"
}
]
}
],
"aliases": [
"CVE-2017-16043"
],
"database_specific": {
"cwe_ids": [
"CWE-80"
],
"github_reviewed": true,
"github_reviewed_at": "2020-06-16T20:51:31Z",
"nvd_published_at": null,
"severity": "MODERATE"
},
"details": "Affected versions of `shout` do not escape the `/topic` command in messages, and are therefore vulnerable to cross-site scripting.\n\n\n## Recommendation\n\nUpdate to version 0.50.0 or later.",
"id": "GHSA-26q7-g57v-mxcp",
"modified": "2020-08-31T18:19:13Z",
"published": "2018-11-07T00:28:11Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2017-16043"
},
{
"type": "WEB",
"url": "https://github.com/erming/shout/pull/344"
},
{
"type": "ADVISORY",
"url": "https://github.com/advisories/GHSA-26q7-g57v-mxcp"
},
{
"type": "WEB",
"url": "https://www.npmjs.com/advisories/322"
}
],
"schema_version": "1.4.0",
"severity": [],
"summary": "HTML Injection in shout"
}
GHSA-26XQ-M8XW-6373
Vulnerability from github – Published: 2025-03-11 20:31 – Updated: 2025-06-03 17:35Summary
An HTML Injection vulnerability in the customer account portal allows an attacker to inject malicious HTML payloads in the email section. This can lead to phishing attacks, credential theft, and reputational damage by redirecting users to malicious external websites. The vulnerability has a medium severity, as it can be exploited through user input without authentication.
Observation
It is observed that in the portal of the customer account, there is a functionality in the email section to create an email address that accepts user input. By intercepting the request and modifying the "domain" field with an HTML injection payload containing an anchor tag, the injected payload is reflected on an error page. When clicked, it redirects users to an external website, confirming the presence of an HTML Injection vulnerability.
PoC
-
Navigate to the Email section in the Customer Account Portal and create a new email address.
-
Enter any garbage value in the required field and intercept the request using Burp Suite.
-
Locate the "domain" field in the intercepted request and replace its value with the following HTML Injection payload:
<a href="https://www.google.com">CLiCK</a> -
Forward the modified request and observe that the injected payload is reflected on an error page.
-
Click on the displayed "CLiCK" link to verify that it redirects to
https://www.google.com, confirming the presence of HTML Injection.
Impact
An attacker can exploit this HTML Injection vulnerability to manipulate the portal’s content, conduct phishing attacks, deface the application, or trick users into clicking malicious links. This can lead to credential theft, malware distribution, reputational damage, and potential compliance violations. The users of the customer account portal are impacted by this vulnerability. Specifically, any user who interacts with the email section of the portal may be tricked into clicking malicious links, leading to potential phishing attacks, credential theft, and exposure to other malicious activities. The organization hosting the portal could also be impacted by reputational damage and compliance violations.
Recommendation
It is recommended to implement proper input validation and output encoding to prevent HTML Injection. The application should sanitize user input by stripping or escaping HTML tags before rendering it on the page.
{
"affected": [
{
"database_specific": {
"last_known_affected_version_range": "\u003c= 2.2.5"
},
"package": {
"ecosystem": "Packagist",
"name": "froxlor/froxlor"
},
"ranges": [
{
"events": [
{
"introduced": "0"
},
{
"fixed": "2.2.6"
}
],
"type": "ECOSYSTEM"
}
]
}
],
"aliases": [
"CVE-2025-48958"
],
"database_specific": {
"cwe_ids": [
"CWE-79",
"CWE-80"
],
"github_reviewed": true,
"github_reviewed_at": "2025-03-11T20:31:08Z",
"nvd_published_at": "2025-06-02T12:15:25Z",
"severity": "MODERATE"
},
"details": "### Summary\n_An HTML Injection vulnerability in the customer account portal allows an attacker to inject malicious HTML payloads in the email section. This can lead to phishing attacks, credential theft, and reputational damage by redirecting users to malicious external websites. The vulnerability has a medium severity, as it can be exploited through user input without authentication._\n\n### Observation\n_It is observed that in the portal of the customer account, there is a functionality in the email section to create an email address that accepts user input. By intercepting the request and modifying the \"domain\" field with an HTML injection payload containing an anchor tag, the injected payload is reflected on an error page. When clicked, it redirects users to an external website, confirming the presence of an HTML Injection vulnerability._\n\n### PoC\n1. Navigate to the Email section in the Customer Account Portal and create a new email address.\n\n2. Enter any garbage value in the required field and intercept the request using Burp Suite.\n\n3. Locate the \"domain\" field in the intercepted request and replace its value with the following HTML Injection payload:\n\n\t`\u003ca href=\"\u0026#x68;\u0026#x74;\u0026#x74;\u0026#x70;\u0026#x73;\u0026#x3a;\u0026#x2f;\u0026#x2f;\u0026#x77;\u0026#x77;\u0026#x77;\u0026#x2e;\u0026#x67;\u0026#x6f;\u0026#x6f;\u0026#x67;\u0026#x6c;\u0026#x65;\u0026#x2e;\u0026#x63;\u0026#x6f;\u0026#x6d;\"\u003eCLiCK\u003c/a\u003e`\n\n4. Forward the modified request and observe that the injected payload is reflected on an error page.\n\n5. Click on the displayed \"CLiCK\" link to verify that it redirects to `https://www.google.com`, confirming the presence of HTML [Injection.]([url]([froxlor_HTML-INJECTION.mp4.zip](https://github.com/user-attachments/files/18311429/froxlor_HTML-INJECTION.mp4.zip)))\n\n### Impact\n_An attacker can exploit this HTML Injection vulnerability to manipulate the portal\u2019s content, conduct phishing attacks, deface the application, or trick users into clicking malicious links. This can lead to credential theft, malware distribution, reputational damage, and potential compliance violations.\nThe users of the customer account portal are impacted by this vulnerability. Specifically, any user who interacts with the email section of the portal may be tricked into clicking malicious links, leading to potential phishing attacks, credential theft, and exposure to other malicious activities. The organization hosting the portal could also be impacted by reputational damage and compliance violations._\n\n### Recommendation\n_It is recommended to implement proper input validation and output encoding to prevent HTML Injection. The application should sanitize user input by stripping or escaping HTML tags before rendering it on the page._",
"id": "GHSA-26xq-m8xw-6373",
"modified": "2025-06-03T17:35:31Z",
"published": "2025-03-11T20:31:08Z",
"references": [
{
"type": "WEB",
"url": "https://github.com/froxlor/Froxlor/security/advisories/GHSA-26xq-m8xw-6373"
},
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2025-48958"
},
{
"type": "WEB",
"url": "https://github.com/froxlor/Froxlor/commit/fde43f80600f1035e1e3d2297411b666d805549a"
},
{
"type": "PACKAGE",
"url": "https://github.com/froxlor/Froxlor"
},
{
"type": "WEB",
"url": "https://github.com/user-attachments/assets/86947633-3e7c-4e10-86cc-92e577761e8e"
}
],
"schema_version": "1.4.0",
"severity": [
{
"score": "CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:L/I:L/A:L",
"type": "CVSS_V3"
}
],
"summary": "Froxlor has an HTML Injection Vulnerability"
}
GHSA-2726-6RMV-HF9G
Vulnerability from github – Published: 2024-04-09 21:31 – Updated: 2026-04-08 18:32The UsersWP – Front-end login form, User Registration, User Profile & Members Directory plugin for WordPress plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the plugin's shortcode(s) in all versions up to, and including, 1.2.6 due to insufficient input sanitization and output escaping on user supplied attributes. This makes it possible for authenticated attackers with contributor-level and above permissions to inject arbitrary web scripts in pages that will execute whenever a user accesses an injected page.
{
"affected": [],
"aliases": [
"CVE-2024-2423"
],
"database_specific": {
"cwe_ids": [
"CWE-79",
"CWE-80"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2024-04-09T19:15:33Z",
"severity": "MODERATE"
},
"details": "The UsersWP \u2013 Front-end login form, User Registration, User Profile \u0026 Members Directory plugin for WordPress plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the plugin\u0027s shortcode(s) in all versions up to, and including, 1.2.6 due to insufficient input sanitization and output escaping on user supplied attributes. This makes it possible for authenticated attackers with contributor-level and above permissions to inject arbitrary web scripts in pages that will execute whenever a user accesses an injected page.",
"id": "GHSA-2726-6rmv-hf9g",
"modified": "2026-04-08T18:32:56Z",
"published": "2024-04-09T21:31:59Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2024-2423"
},
{
"type": "WEB",
"url": "https://plugins.trac.wordpress.org/browser/userswp/trunk/widgets/user-title.php"
},
{
"type": "WEB",
"url": "https://plugins.trac.wordpress.org/changeset?old_path=/userswp/tags/1.2.6\u0026old=3051240\u0026new_path=/userswp/tags/1.2.7\u0026new=3051240\u0026sfp_email=\u0026sfph_mail="
},
{
"type": "WEB",
"url": "https://www.wordfence.com/threat-intel/vulnerabilities/id/2ef53c2c-01fb-41b6-b329-d952ce3424e8?source=cve"
}
],
"schema_version": "1.4.0",
"severity": [
{
"score": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:L/I:L/A:N",
"type": "CVSS_V3"
}
]
}
Mitigation
Carefully check each input parameter against a rigorous positive specification (allowlist) defining the specific characters and format allowed. All input should be neutralized, not just parameters that the user is supposed to specify, but all data in the request, including hidden fields, cookies, headers, the URL itself, and so forth. A common mistake that leads to continuing XSS vulnerabilities is to validate only fields that are expected to be redisplayed by the site. We often encounter data from the request that is reflected by the application server or the application that the development team did not anticipate. Also, a field that is not currently reflected may be used by a future developer. Therefore, validating ALL parts of the HTTP request is recommended.
Mitigation MIT-30.1
Strategy: Output Encoding
- 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.
Mitigation MIT-43
With Struts, write all data from form beans with the bean's filter attribute set to true.
Mitigation MIT-31
Strategy: Attack Surface Reduction
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.
CAPEC-18: XSS Targeting Non-Script Elements
This attack is a form of Cross-Site Scripting (XSS) where malicious scripts are embedded in elements that are not expected to host scripts such as image tags (<img>), comments in XML documents (< !-CDATA->), etc. These tags may not be subject to the same input validation, output validation, and other content filtering and checking routines, so this can create an opportunity for an adversary to tunnel through the application's elements and launch a XSS attack through other elements. As with all remote attacks, it is important to differentiate the ability to launch an attack (such as probing an internal network for unpatched servers) and the ability of the remote adversary to collect and interpret the output of said attack.
CAPEC-193: PHP Remote File Inclusion
In this pattern the adversary is able to load and execute arbitrary code remotely available from the application. This is usually accomplished through an insecurely configured PHP runtime environment and an improperly sanitized "include" or "require" call, which the user can then control to point to any web-accessible file. This allows adversaries to hijack the targeted application and force it to execute their own instructions.
CAPEC-32: XSS Through HTTP Query Strings
An adversary embeds malicious script code in the parameters of an HTTP query string and convinces a victim to submit the HTTP request that contains the query string to a vulnerable web application. The web application then procedes to use the values parameters without properly validation them first and generates the HTML code that will be executed by the victim's browser.
CAPEC-86: XSS Through HTTP Headers
An adversary exploits web applications that generate web content, such as links in a HTML page, based on unvalidated or improperly validated data submitted by other actors. XSS in HTTP Headers attacks target the HTTP headers which are hidden from most users and may not be validated by web applications.