CVE-2011-2931 (GCVE-0-2011-2931)
Vulnerability from cvelistv5 – Published: 2011-08-29 18:00 – Updated: 2024-08-06 23:15
VLAI
EPSS
VEX
Summary
Cross-site scripting (XSS) vulnerability in the strip_tags helper in actionpack/lib/action_controller/vendor/html-scanner/html/node.rb in Ruby on Rails before 2.3.13, 3.0.x before 3.0.10, and 3.1.x before 3.1.0.rc5 allows remote attackers to inject arbitrary web script or HTML via a tag with an invalid name.
Severity
No CVSS data available.
CWE
- n/a
Assigner
References
15 references
Date Public
2011-08-16 00:00
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"value": "Cross-site scripting (XSS) vulnerability in the strip_tags helper in actionpack/lib/action_controller/vendor/html-scanner/html/node.rb in Ruby on Rails before 2.3.13, 3.0.x before 3.0.10, and 3.1.x before 3.1.0.rc5 allows remote attackers to inject arbitrary web script or HTML via a tag with an invalid name."
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{
"lang": "es",
"value": "Vulnerabilidad de ejecuci\u00f3n de secuencias comandos en sitios cruzados (XSS) en strip_tags de actionpack/lib/action_controller/vendor/html-scanner/html/node.rb en Ruby on Rails v2.x antes de v2.3.13, v3.0.x antes de v3.0.10, y v3.1.x antes de v3.1.0.rc5 permite a atacantes remotos ejecutar secuencias de comandos web o HTML a trav\u00e9s una etiqueta con un nombre no v\u00e1lido."
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],
"negate": false,
"operator": "OR"
}
]
}
],
"cveTags": [],
"descriptions": [
{
"lang": "en",
"value": "Cross-site scripting (XSS) vulnerability in the strip_tags helper in actionpack/lib/action_controller/vendor/html-scanner/html/node.rb in Ruby on Rails before 2.3.13, 3.0.x before 3.0.10, and 3.1.x before 3.1.0.rc5 allows remote attackers to inject arbitrary web script or HTML via a tag with an invalid name."
},
{
"lang": "es",
"value": "Vulnerabilidad de ejecuci\u00f3n de secuencias comandos en sitios cruzados (XSS) en strip_tags de actionpack/lib/action_controller/vendor/html-scanner/html/node.rb en Ruby on Rails v2.x antes de v2.3.13, v3.0.x antes de v3.0.10, y v3.1.x antes de v3.1.0.rc5 permite a atacantes remotos ejecutar secuencias de comandos web o HTML a trav\u00e9s una etiqueta con un nombre no v\u00e1lido."
}
],
"id": "CVE-2011-2931",
"lastModified": "2026-04-29T01:13:23.040",
"metrics": {
"cvssMetricV2": [
{
"acInsufInfo": false,
"baseSeverity": "MEDIUM",
"cvssData": {
"accessComplexity": "MEDIUM",
"accessVector": "NETWORK",
"authentication": "NONE",
"availabilityImpact": "NONE",
"baseScore": 4.3,
"confidentialityImpact": "NONE",
"integrityImpact": "PARTIAL",
"vectorString": "AV:N/AC:M/Au:N/C:N/I:P/A:N",
"version": "2.0"
},
"exploitabilityScore": 8.6,
"impactScore": 2.9,
"obtainAllPrivilege": false,
"obtainOtherPrivilege": false,
"obtainUserPrivilege": false,
"source": "nvd@nist.gov",
"type": "Primary",
"userInteractionRequired": true
}
]
},
"published": "2011-08-29T18:55:01.503",
"references": [
{
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"tags": [
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],
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"weaknesses": [
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{
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"value": "CWE-79"
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"type": "Primary"
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},
"redhat_vex": {
"current_release_date": "2025-11-21T12:56:04+00:00",
"cve": "CVE-2011-2931",
"id": "CVE-2011-2931",
"initial_release_date": "2011-08-16T00:00:00+00:00",
"product_status:known_not_affected": "1",
"source": "Red Hat CSAF VEX",
"status": "final",
"title": "rubygem-actionpack: XSS vulnerability in strip_tags helper (Ruby on Rails)",
"url": "https://security.access.redhat.com/data/csaf/v2/vex/2011/cve-2011-2931.json",
"version": "3"
},
"suse_vex": {
"aggregate_severity": "important",
"current_release_date": "2025-04-25T13:47:05Z",
"cve": "CVE-2011-2931",
"id": "CVE-2011-2931",
"initial_release_date": "2023-02-15T05:51:51Z",
"product_status:recommended": "7",
"source": "SUSE CSAF VEX",
"status": "interim",
"title": "SUSE CVE CVE-2011-2931",
"url": "https://ftp.suse.com/pub/projects/security/csaf-vex/cve-2011-2931.json",
"version": "5"
}
}
}
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Drag nodes to arrange them. Double-click a related vulnerability to open it, or a source to visit its link. The Physics button on the left tunes the layout and the simulation; the legend at the bottom left hides or shows nodes by kind and by sighting type.
Experimental. This forecast is provided for visualization only and may change without notice. Do not use it for operational decisions.
Forecast uses a logistic model when the trend is rising, or an exponential decay model when the trend is falling. Fitted via linearized least squares.
Sightings
| Author | Source | Type | Date | Other |
|---|
Nomenclature
- Seen: The vulnerability was mentioned, discussed, or observed by the user.
- Confirmed: The vulnerability has been validated from an analyst's perspective.
- Published Proof of Concept: A public proof of concept is available for this vulnerability.
- Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
- Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
- Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
- Not confirmed: The user expressed doubt about the validity of the vulnerability.
- Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.
Vulnerability timeline
Sightings and recorded dates, grouped by day · UTC
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The MITRE ATT&CK techniques below are AI-generated suggestions, inferred from the description of the
vulnerability by the CIRCL/vulnerability-attack-technique-classification-roberta-base
model, served locally by ML-Gateway.
They have not been verified by an analyst and are provided for guidance only.
The approach is described in our paper Mapping CVEs to MITRE ATT&CK Techniques: A Curated Gold-Set Classifier and the Limits of LLM-Assisted Label Expansion.
Browse all ATT&CK techniques and the vulnerabilities related to each.
The approach is described in our paper Mapping CVEs to MITRE ATT&CK Techniques: A Curated Gold-Set Classifier and the Limits of LLM-Assisted Label Expansion.
Browse all ATT&CK techniques and the vulnerabilities related to each.
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Related by attack behaviour
Vulnerabilities whose description is nearest to this one in the vector space of the CIRCL/vulnerability-attack-technique-biencoder model. This is a similarity search over the bi-encoder space (plain cosine), not a classification, and it has no measured accuracy.