CWE-83
AllowedImproper Neutralization of Script in Attributes in a Web Page
Abstraction: Variant · Status: Draft
The product does not neutralize or incorrectly neutralizes "javascript:" or other URIs from dangerous attributes within tags, such as onmouseover, onload, onerror, or style.
40 vulnerabilities reference this CWE, most recent first.
CVE-2022-39262 (GCVE-0-2022-39262)
Vulnerability from cvelistv5 – Published: 2022-11-03 00:00 – Updated: 2025-04-22 16:08- CWE-83 - Improper Neutralization of Script in Attributes in a Web Page
| Vendor | Product | Version | |
|---|---|---|---|
| glpi-project | glpi |
Affected:
< 10.0.4
|
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CVE-2020-14525 (GCVE-0-2020-14525)
Vulnerability from cvelistv5 – Published: 2020-09-18 17:48 – Updated: 2025-06-04 21:12| URL | Tags |
|---|---|
| https://us-cert.cisa.gov/ics/advisories/icsma-20-261-01 | x_refsource_MISC |
| https://www.philips.com/a-w/security/security-adv… |
| Vendor | Product | Version | |
|---|---|---|---|
| Philips | Clinical Collaboration Platform |
Affected:
0 , < 12.2.1
(custom)
|
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GHSA-229F-X33G-7VX4
Vulnerability from github – Published: 2025-03-24 18:31 – Updated: 2025-03-24 18:31Improper Neutralization of Script in Attributes in a Web Page vulnerability in Forcepoint Email Security (Blocked Messages module) allows Stored XSS. This issue affects Email Security through 8.5.5.
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"aliases": [
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],
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"github_reviewed_at": null,
"nvd_published_at": "2025-03-24T16:15:32Z",
"severity": "MODERATE"
},
"details": "Improper Neutralization of Script in Attributes in a Web Page vulnerability in Forcepoint Email Security (Blocked Messages module) allows Stored XSS.\nThis issue affects Email Security through 8.5.5.",
"id": "GHSA-229f-x33g-7vx4",
"modified": "2025-03-24T18:31:02Z",
"published": "2025-03-24T18:31:02Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2024-9103"
},
{
"type": "WEB",
"url": "https://support.forcepoint.com/s/article/Security-Advisory-Email-Security-Gateway-Persistent-XSS-in-Blocked-Messages"
}
],
"schema_version": "1.4.0",
"severity": [
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"score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N",
"type": "CVSS_V3"
}
]
}
GHSA-37WM-H7XG-Q6W9
Vulnerability from github – Published: 2024-02-22 15:30 – Updated: 2024-08-29 21:31An attacker could have executed unauthorized scripts on top origin sites using a JavaScript URI when opening an external URL with a custom Firefox scheme. This vulnerability affects Firefox for iOS < 123.
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"nvd_published_at": "2024-02-22T15:15:08Z",
"severity": "HIGH"
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"details": "An attacker could have executed unauthorized scripts on top origin sites using a JavaScript URI when opening an external URL with a custom Firefox scheme. This vulnerability affects Firefox for iOS \u003c 123.",
"id": "GHSA-37wm-h7xg-q6w9",
"modified": "2024-08-29T21:31:01Z",
"published": "2024-02-22T15:30:39Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2024-26283"
},
{
"type": "WEB",
"url": "https://bugzilla.mozilla.org/show_bug.cgi?id=1850158"
},
{
"type": "WEB",
"url": "https://www.mozilla.org/security/advisories/mfsa2024-08"
}
],
"schema_version": "1.4.0",
"severity": [
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"score": "CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H",
"type": "CVSS_V3"
}
]
}
GHSA-52MM-H59V-F3C7
Vulnerability from github – Published: 2026-06-17 18:35 – Updated: 2026-06-18 14:47Improper Neutralization of Script in Attributes in a Web Page vulnerability in pragdave earmark allows stored cross-site scripting via unescaped HTML attribute values.
'Elixir.Earmark.Transform':_make_att1/2 in lib/earmark/transform.ex splices attribute values verbatim between two literal " bytes: [" ", name, "=\"", value, "\""]. Text nodes are routed through the existing escape function which encodes " as ", but attribute values never visit that path. A markdown link whose URL or title contains a bare " closes the attribute early and lets the trailing bytes be parsed by the browser as fresh HTML attributes. For example, click.
The earmark library is no longer maintained and has been retired on Hex. No patched version will be released. All releases from 1.4.1 onward are affected, and users should migrate to a maintained Markdown library such as MDEx.
This issue affects earmark from 1.4.1 onward.
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"details": "Improper Neutralization of Script in Attributes in a Web Page vulnerability in pragdave earmark allows stored cross-site scripting via unescaped HTML attribute values.\n\n\u0027Elixir.Earmark.Transform\u0027:_make_att1/2 in lib/earmark/transform.ex splices attribute values verbatim between two literal \" bytes: [\" \", name, \"=\\\"\", value, \"\\\"\"]. Text nodes are routed through the existing escape function which encodes \" as \u0026quot;, but attribute values never visit that path. A markdown link whose URL or title contains a bare \" closes the attribute early and lets the trailing bytes be parsed by the browser as fresh HTML attributes. For example, [click](http://example.com/?a=x\" onerror=\"alert(1)) renders as \u003ca href=\"http://example.com/?a=x\" onerror=\"alert(1)\"\u003eclick\u003c/a\u003e, executing arbitrary JavaScript in the victim\u0027s browser.\n\nThe earmark library is no longer maintained and has been retired on Hex. No patched version will be released. All releases from 1.4.1 onward are affected, and users should migrate to a maintained Markdown library such as MDEx.\n\nThis issue affects earmark from 1.4.1 onward.",
"id": "GHSA-52mm-h59v-f3c7",
"modified": "2026-06-18T14:47:16Z",
"published": "2026-06-17T18:35:58Z",
"references": [
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"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2026-48591"
},
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"type": "WEB",
"url": "https://cna.erlef.org/cves/CVE-2026-48591.html"
},
{
"type": "PACKAGE",
"url": "https://github.com/pragdave/earmark"
},
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"type": "WEB",
"url": "https://osv.dev/vulnerability/EEF-CVE-2026-48591"
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],
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"score": "CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:P/VC:L/VI:L/VA:N/SC:L/SI:L/SA:N",
"type": "CVSS_V4"
}
],
"summary": "earmark: Stored XSS via unescaped HTML attribute values"
}
GHSA-5JFW-GQ64-Q45F
Vulnerability from github – Published: 2024-11-19 21:07 – Updated: 2025-01-14 16:37Impact
The HTML Parser in lxml does not properly handle context-switching for special HTML tags such as <svg>, <math> and <noscript>. This behavior deviates from how web browsers parse and interpret such tags. Specifically, content in CSS comments is ignored by lxml_html_clean but may be interpreted differently by web browsers, enabling malicious scripts to bypass the cleaning process. This vulnerability could lead to Cross-Site Scripting (XSS) attacks, compromising the security of users relying on lxml_html_clean in default configuration for sanitizing untrusted HTML content.
Patches
Users employing the HTML cleaner in a security-sensitive context should upgrade to lxml 0.4.0, which addresses this issue.
Workarounds
As a temporary mitigation, users can configure lxml_html_clean with the following settings to prevent the exploitation of this vulnerability:
* remove_tags: Specify tags to remove - their content is moved to their parents' tags.
* kill_tags: Specify tags to be removed completely.
* allow_tags: Restrict the set of permissible tags, excluding context-switching tags like <svg>, <math> and <noscript>.
References
- https://github.com/fedora-python/lxml_html_clean/pull/19
- https://github.com/fedora-python/lxml_html_clean/pull/19/commits/c5d816f86eb3707d72a8ecf5f3823e0daa1b3808
{
"affected": [
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"package": {
"ecosystem": "PyPI",
"name": "lxml-html-clean"
},
"ranges": [
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"events": [
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"introduced": "0"
},
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"fixed": "0.4.0"
}
],
"type": "ECOSYSTEM"
}
]
}
],
"aliases": [
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],
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"cwe_ids": [
"CWE-184",
"CWE-79",
"CWE-83"
],
"github_reviewed": true,
"github_reviewed_at": "2024-11-19T21:07:59Z",
"nvd_published_at": "2024-11-19T22:15:21Z",
"severity": "HIGH"
},
"details": "### Impact\n\nThe HTML Parser in lxml does not properly handle context-switching for special HTML tags such as `\u003csvg\u003e`, `\u003cmath\u003e` and `\u003cnoscript\u003e`. This behavior deviates from how web browsers parse and interpret such tags. Specifically, content in CSS comments is ignored by lxml_html_clean but may be interpreted differently by web browsers, enabling malicious scripts to bypass the cleaning process. This vulnerability could lead to Cross-Site Scripting (XSS) attacks, compromising the security of users relying on lxml_html_clean in default configuration for sanitizing untrusted HTML content.\n\n### Patches\n\nUsers employing the HTML cleaner in a security-sensitive context should upgrade to lxml 0.4.0, which addresses this issue.\n\n### Workarounds\n\nAs a temporary mitigation, users can configure lxml_html_clean with the following settings to prevent the exploitation of this vulnerability:\n* `remove_tags`: Specify tags to remove - their content is moved to their parents\u0027 tags.\n* `kill_tags`: Specify tags to be removed completely.\n* `allow_tags`: Restrict the set of permissible tags, excluding context-switching tags like `\u003csvg\u003e`, `\u003cmath\u003e` and `\u003cnoscript\u003e`.\n\n### References\n\n* https://github.com/fedora-python/lxml_html_clean/pull/19\n* https://github.com/fedora-python/lxml_html_clean/pull/19/commits/c5d816f86eb3707d72a8ecf5f3823e0daa1b3808\n",
"id": "GHSA-5jfw-gq64-q45f",
"modified": "2025-01-14T16:37:30Z",
"published": "2024-11-19T21:07:59Z",
"references": [
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"type": "WEB",
"url": "https://github.com/fedora-python/lxml_html_clean/security/advisories/GHSA-5jfw-gq64-q45f"
},
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2024-52595"
},
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"type": "WEB",
"url": "https://github.com/fedora-python/lxml_html_clean/pull/19"
},
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"url": "https://github.com/fedora-python/lxml_html_clean/commit/c5d816f86eb3707d72a8ecf5f3823e0daa1b3808"
},
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"url": "https://github.com/fedora-python/lxml_html_clean"
},
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"type": "WEB",
"url": "https://github.com/pypa/advisory-database/tree/main/vulns/lxml-html-clean/PYSEC-2024-160.yaml"
}
],
"schema_version": "1.4.0",
"severity": [
{
"score": "CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:L/A:H",
"type": "CVSS_V3"
}
],
"summary": "HTML Cleaner allows crafted scripts in special contexts like svg or math to pass through"
}
GHSA-663W-2XP3-5739
Vulnerability from github – Published: 2023-10-25 21:02 – Updated: 2023-11-01 06:06Impact
The cleaning of attributes during XHTML rendering, introduced in version 14.6-rc-1, allowed the injection of arbitrary HTML code and thus cross-site scripting via invalid attribute names. This can be exploited, e.g., via the link syntax in any content that supports XWiki syntax like comments in XWiki:
[[Link1>>https://XWiki.example.com||/onmouseover="alert('XSS1')"]]
When a user moves the mouse over this link, the malicious JavaScript code is executed in the context of the user session. When this user is a privileged user who has programming rights, this allows server-side code execution with programming rights, impacting the confidentiality, integrity and availability of the XWiki instance.
While this attribute was correctly recognized as not allowed, the attribute was still printed with a prefix data-xwiki-translated-attribute- without further cleaning or validation.
Note that while versions below 14.6 are not vulnerable to this particular vulnerability, they are still vulnerable to XSS through attributes in XWiki syntax, see the corresponding advisory.
Patches
This problem has been patched in XWiki 14.10.4 and 15.0 RC1 by removing characters not allowed in data attributes and then validating the cleaned attribute again.
Workarounds
There are no known workarounds apart from upgrading to a version including the fix.
References
- https://jira.xwiki.org/browse/XRENDERING-697
- https://github.com/xwiki/xwiki-rendering/commit/f4d5acac451dccaf276e69f0b49b72221eef5d2f
For more information
If you have any questions or comments about this advisory: * Open an issue in Jira XWiki * Email us at XWiki Security mailing-list
{
"affected": [
{
"package": {
"ecosystem": "Maven",
"name": "org.xwiki.rendering:xwiki-rendering-xml"
},
"ranges": [
{
"events": [
{
"introduced": "14.6-rc-1"
},
{
"fixed": "14.10.4"
}
],
"type": "ECOSYSTEM"
}
]
}
],
"aliases": [
"CVE-2023-37908"
],
"database_specific": {
"cwe_ids": [
"CWE-79",
"CWE-83",
"CWE-86"
],
"github_reviewed": true,
"github_reviewed_at": "2023-10-25T21:02:49Z",
"nvd_published_at": "2023-10-25T18:17:28Z",
"severity": "CRITICAL"
},
"details": "### Impact\nThe cleaning of attributes during XHTML rendering, introduced in version 14.6-rc-1, allowed the injection of arbitrary HTML code and thus cross-site scripting via invalid attribute names. This can be exploited, e.g., via the link syntax in any content that supports XWiki syntax like comments in XWiki: \n\n```\n[[Link1\u003e\u003ehttps://XWiki.example.com||/onmouseover=\"alert(\u0027XSS1\u0027)\"]]\n```\n\nWhen a user moves the mouse over this link, the malicious JavaScript code is executed in the context of the user session. When this user is a privileged user who has programming rights, this allows server-side code execution with programming rights, impacting the confidentiality, integrity and availability of the XWiki instance.\n\nWhile this attribute was correctly recognized as not allowed, the attribute was still printed with a prefix `data-xwiki-translated-attribute-` without further cleaning or validation.\n\nNote that while versions below 14.6 are not vulnerable to this particular vulnerability, they are still vulnerable to XSS through attributes in XWiki syntax, see [the corresponding advisory](https://github.com/xwiki/xwiki-rendering/security/advisories/GHSA-6gf5-c898-7rxp).\n\n### Patches\nThis problem has been patched in XWiki 14.10.4 and 15.0 RC1 by removing characters not allowed in data attributes and then validating the cleaned attribute again.\n\n### Workarounds\nThere are no known workarounds apart from upgrading to a version including the fix.\n\n### References\n* https://jira.xwiki.org/browse/XRENDERING-697\n* https://github.com/xwiki/xwiki-rendering/commit/f4d5acac451dccaf276e69f0b49b72221eef5d2f\n\n### For more information\nIf you have any questions or comments about this advisory:\n* Open an issue in [Jira XWiki](https://jira.xwiki.org/)\n* Email us at [XWiki Security mailing-list](mailto:security@xwiki.org)\n",
"id": "GHSA-663w-2xp3-5739",
"modified": "2023-11-01T06:06:17Z",
"published": "2023-10-25T21:02:49Z",
"references": [
{
"type": "WEB",
"url": "https://github.com/xwiki/xwiki-rendering/security/advisories/GHSA-663w-2xp3-5739"
},
{
"type": "WEB",
"url": "https://github.com/xwiki/xwiki-rendering/security/advisories/GHSA-6gf5-c898-7rxp"
},
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2023-37908"
},
{
"type": "WEB",
"url": "https://github.com/xwiki/xwiki-rendering/commit/f4d5acac451dccaf276e69f0b49b72221eef5d2f"
},
{
"type": "PACKAGE",
"url": "https://github.com/xwiki/xwiki-rendering"
},
{
"type": "WEB",
"url": "https://jira.xwiki.org/browse/XRENDERING-697"
}
],
"schema_version": "1.4.0",
"severity": [
{
"score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:H/I:H/A:H",
"type": "CVSS_V3"
}
],
"summary": "org.xwiki.rendering:xwiki-rendering-xml Improper Neutralization of Invalid Characters in Identifiers in Web Pages vulnerability"
}
GHSA-6GF5-C898-7RXP
Vulnerability from github – Published: 2023-05-11 20:37 – Updated: 2023-05-11 20:37Impact
HTML rendering didn't check for dangerous attributes/attribute values. This allowed cross-site scripting (XSS) attacks via attributes and link URLs, e.g., supported in XWiki syntax.
Patches
This has been patched in XWiki 14.6 RC1.
Workarounds
There are no known workarounds apart from upgrading to a fixed version.
References
- https://github.com/xwiki/xwiki-rendering/commit/c40e2f5f9482ec6c3e71dbf1fff5ba8a5e44cdc1
- https://jira.xwiki.org/browse/XRENDERING-663
For more information
If you have any questions or comments about this advisory: * Open an issue in Jira XWiki.org * Email us at Security Mailing List
{
"affected": [
{
"package": {
"ecosystem": "Maven",
"name": "org.xwiki.rendering:xwiki-rendering-syntax-xhtml"
},
"ranges": [
{
"events": [
{
"introduced": "0"
},
{
"fixed": "14.6-rc-1"
}
],
"type": "ECOSYSTEM"
}
]
},
{
"package": {
"ecosystem": "Maven",
"name": "org.xwiki.platform:xwiki-core-rendering-api"
},
"ranges": [
{
"events": [
{
"introduced": "0"
},
{
"last_affected": "3.0-milestone-2"
}
],
"type": "ECOSYSTEM"
}
]
},
{
"package": {
"ecosystem": "Maven",
"name": "org.xwiki.rendering:xwiki-rendering-syntax-html"
},
"ranges": [
{
"events": [
{
"introduced": "0"
},
{
"fixed": "14.6-rc-1"
}
],
"type": "ECOSYSTEM"
}
]
},
{
"package": {
"ecosystem": "Maven",
"name": "org.xwiki.rendering:xwiki-rendering-syntax-html5"
},
"ranges": [
{
"events": [
{
"introduced": "0"
},
{
"fixed": "14.6-rc-1"
}
],
"type": "ECOSYSTEM"
}
]
},
{
"package": {
"ecosystem": "Maven",
"name": "org.xwiki.rendering:xwiki-rendering-syntax-annotatedxhtml"
},
"ranges": [
{
"events": [
{
"introduced": "0"
},
{
"fixed": "14.6-rc-1"
}
],
"type": "ECOSYSTEM"
}
]
},
{
"package": {
"ecosystem": "Maven",
"name": "org.xwiki.rendering:xwiki-rendering-syntax-annotatedhtml5"
},
"ranges": [
{
"events": [
{
"introduced": "0"
},
{
"fixed": "14.6-rc-1"
}
],
"type": "ECOSYSTEM"
}
]
},
{
"package": {
"ecosystem": "Maven",
"name": "org.xwiki.platform:xwiki-platform-annotation-core"
},
"ranges": [
{
"events": [
{
"introduced": "0"
},
{
"fixed": "14.6-rc-1"
}
],
"type": "ECOSYSTEM"
}
]
}
],
"aliases": [
"CVE-2023-32070"
],
"database_specific": {
"cwe_ids": [
"CWE-79",
"CWE-83"
],
"github_reviewed": true,
"github_reviewed_at": "2023-05-11T20:37:30Z",
"nvd_published_at": "2023-05-10T18:15:10Z",
"severity": "CRITICAL"
},
"details": "### Impact\n\nHTML rendering didn\u0027t check for dangerous attributes/attribute values. This allowed cross-site scripting (XSS) attacks via attributes and link URLs, e.g., supported in XWiki syntax.\n\n### Patches\nThis has been patched in XWiki 14.6 RC1.\n\n### Workarounds\nThere are no known workarounds apart from upgrading to a fixed version.\n\n### References\n* https://github.com/xwiki/xwiki-rendering/commit/c40e2f5f9482ec6c3e71dbf1fff5ba8a5e44cdc1\n* https://jira.xwiki.org/browse/XRENDERING-663\n\n### For more information\nIf you have any questions or comments about this advisory:\n* Open an issue in [Jira XWiki.org](https://jira.xwiki.org/)\n* Email us at [Security Mailing List](mailto:security@xwiki.org)\n",
"id": "GHSA-6gf5-c898-7rxp",
"modified": "2023-05-11T20:37:30Z",
"published": "2023-05-11T20:37:30Z",
"references": [
{
"type": "WEB",
"url": "https://github.com/xwiki/xwiki-rendering/security/advisories/GHSA-6gf5-c898-7rxp"
},
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2023-32070"
},
{
"type": "WEB",
"url": "https://github.com/xwiki/xwiki-rendering/commit/c40e2f5f9482ec6c3e71dbf1fff5ba8a5e44cdc1"
},
{
"type": "PACKAGE",
"url": "https://github.com/xwiki/xwiki-rendering"
},
{
"type": "WEB",
"url": "https://jira.xwiki.org/browse/XRENDERING-663"
}
],
"schema_version": "1.4.0",
"severity": [
{
"score": "CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:H/I:H/A:H",
"type": "CVSS_V3"
}
],
"summary": "Improper Neutralization of Script in Attributes in XWiki (X)HTML renderers"
}
GHSA-6XCG-6Q43-RJ2V
Vulnerability from github – Published: 2026-06-16 21:31 – Updated: 2026-06-18 20:13Duplicate Advisory
This advisory has been withdrawn because it is a duplicate of GHSA-w9hf-3pp7-pvxv. This link is maintained to preserve external references.
Original Description
OpenClaw before 2026.5.12 contains a cross-site scripting vulnerability in exported session HTML that preserves unsafe javascript: and data: links in generated content. Attackers can execute browser-side scripts if a trusted operator opens the exported file and activates a malicious link.
{
"affected": [
{
"package": {
"ecosystem": "npm",
"name": "openclaw"
},
"ranges": [
{
"events": [
{
"introduced": "0"
},
{
"last_affected": "2026.5.7"
}
],
"type": "ECOSYSTEM"
}
]
}
],
"aliases": [],
"database_specific": {
"cwe_ids": [
"CWE-83"
],
"github_reviewed": true,
"github_reviewed_at": "2026-06-18T20:13:59Z",
"nvd_published_at": "2026-06-16T19:17:00Z",
"severity": "LOW"
},
"details": "## Duplicate Advisory\n\nThis advisory has been withdrawn because it is a duplicate of\u00a0GHSA-w9hf-3pp7-pvxv. This link is maintained to preserve external references.\n\n## Original Description\nOpenClaw before 2026.5.12 contains a cross-site scripting vulnerability in exported session HTML that preserves unsafe javascript: and data: links in generated content. Attackers can execute browser-side scripts if a trusted operator opens the exported file and activates a malicious link.",
"id": "GHSA-6xcg-6q43-rj2v",
"modified": "2026-06-18T20:13:59Z",
"published": "2026-06-16T21:31:57Z",
"references": [
{
"type": "WEB",
"url": "https://github.com/openclaw/openclaw/security/advisories/GHSA-w9hf-3pp7-pvxv"
},
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2026-53841"
},
{
"type": "WEB",
"url": "https://www.vulncheck.com/advisories/openclaw-cross-site-scripting-via-unsafe-markdown-links-in-exported-session-html"
}
],
"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"
},
{
"score": "CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:A/VC:N/VI:N/VA:N/SC:L/SI:L/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X",
"type": "CVSS_V4"
}
],
"summary": "Duplicate Advisory: Exported session HTML could keep unsafe markdown links",
"withdrawn": "2026-06-18T20:13:59Z"
}
GHSA-779W-7MCF-PVXF
Vulnerability from github – Published: 2022-05-24 17:28 – Updated: 2025-06-05 00:31Philips Clinical Collaboration Platform, Versions 12.2.1 and prior. The software does not neutralize or incorrectly neutralizes user-controllable input before it is placed in output used as a webpage that is served to other users.
{
"affected": [],
"aliases": [
"CVE-2020-14525"
],
"database_specific": {
"cwe_ids": [
"CWE-83"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2020-09-18T18:15:00Z",
"severity": "LOW"
},
"details": "Philips Clinical Collaboration Platform, Versions 12.2.1 and prior. The software does not neutralize or incorrectly neutralizes user-controllable input before it is placed in output used as a webpage that is served to other users.",
"id": "GHSA-779w-7mcf-pvxf",
"modified": "2025-06-05T00:31:18Z",
"published": "2022-05-24T17:28:54Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2020-14525"
},
{
"type": "WEB",
"url": "https://us-cert.cisa.gov/ics/advisories/icsma-20-261-01"
},
{
"type": "WEB",
"url": "https://www.philips.com/a-w/security/security-advisories/product-security-2020.html#2020_archive"
}
],
"schema_version": "1.4.0",
"severity": [
{
"score": "CVSS:3.1/AV:A/AC:L/PR:L/UI:N/S:U/C:L/I:N/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 tag attributes, 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-243: XSS Targeting HTML Attributes
An adversary inserts commands to perform cross-site scripting (XSS) actions in HTML attributes. Many filters do not adequately sanitize attributes against the presence of potentially dangerous commands even if they adequately sanitize tags. For example, dangerous expressions could be inserted into a style attribute in an anchor tag, resulting in the execution of malicious code when the resulting page is rendered. If a victim is tricked into viewing the rendered page the attack proceeds like a normal XSS attack, possibly resulting in the loss of sensitive cookies or other malicious activities.
CAPEC-244: XSS Targeting URI Placeholders
An attack of this type exploits the ability of most browsers to interpret "data", "javascript" or other URI schemes as client-side executable content placeholders. This attack consists of passing a malicious URI in an anchor tag HREF attribute or any other similar attributes in other HTML tags. Such malicious URI contains, for example, a base64 encoded HTML content with an embedded cross-site scripting payload. The attack is executed when the browser interprets the malicious content i.e., for example, when the victim clicks on the malicious link.
CAPEC-588: DOM-Based XSS
This type of attack is a form of Cross-Site Scripting (XSS) where a malicious script is inserted into the client-side HTML being parsed by a web browser. Content served by a vulnerable web application includes script code used to manipulate the Document Object Model (DOM). This script code either does not properly validate input, or does not perform proper output encoding, thus creating an opportunity for an adversary to inject a malicious script launch a XSS attack. A key distinction between other XSS attacks and DOM-based attacks is that in other XSS attacks, the malicious script runs when the vulnerable web page is initially loaded, while a DOM-based attack executes sometime after the page loads. Another distinction of DOM-based attacks is that in some cases, the malicious script is never sent to the vulnerable web server at all. An attack like this is guaranteed to bypass any server-side filtering attempts to protect users.