FKIE_CVE-2020-21101
Vulnerability from fkie_nvd - Published: 2021-04-29 17:15 - Updated: 2026-06-17 03:03
Severity
Summary
Cross Site Scriptiong vulnerabilityin Screenly screenly-ose all versions, including v1.8.2 (2019-09-25-Screenly-OSE-lite.img), in the 'Add Asset' page via manipulation of a 'URL' field, which could let a remote malicious user execute arbitrary code.
References
| URL | Tags | ||
|---|---|---|---|
| cve@mitre.org | https://github.com/Screenly/screenly-ose/issues/1254 | Third Party Advisory | |
| af854a3a-2127-422b-91ae-364da2661108 | https://github.com/Screenly/screenly-ose/issues/1254 | Third Party Advisory |
Impacted products
| Vendor | Product | Version | |
|---|---|---|---|
| screenly | screenly | 0.9 | |
| screenly | screenly | 0.9.1 | |
| screenly | screenly | 0.10 | |
| screenly | screenly | 0.11 | |
| screenly | screenly | 0.12 | |
| screenly | screenly | 0.12.1 | |
| screenly | screenly | 0.13 | |
| screenly | screenly | 0.14 | |
| screenly | screenly | 0.15 | |
| screenly | screenly | 0.15.1 | |
| screenly | screenly | 0.16 | |
| screenly | screenly | 0.17 | |
| screenly | screenly | 0.18 | |
| screenly | screenly | 0.18.1 | |
| screenly | screenly | 0.18.2 |
{
"affected": [
{
"affectedData": [
{
"product": "n/a",
"vendor": "n/a",
"versions": [
{
"status": "affected",
"version": "n/a"
}
]
}
],
"source": "cve@mitre.org"
}
],
"configurations": [
{
"nodes": [
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"criteria": "cpe:2.3:a:screenly:screenly:0.9:*:*:*:ose:*:*:*",
"matchCriteriaId": "7CFB3738-DE0F-441B-A039-EAB2E42B3EF0",
"vulnerable": true
},
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"negate": false,
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],
"cveTags": [],
"descriptions": [
{
"lang": "en",
"value": "Cross Site Scriptiong vulnerabilityin Screenly screenly-ose all versions, including v1.8.2 (2019-09-25-Screenly-OSE-lite.img), in the \u0027Add Asset\u0027 page via manipulation of a \u0027URL\u0027 field, which could let a remote malicious user execute arbitrary code."
},
{
"lang": "es",
"value": "Una vulnerabilidad de tipo Cross Site Scripting en Screenly screenly-ose todas las versiones, incluyendo la v1.8.2 (25-09-2019-Screenly-OSE-lite.img), en la p\u00e1gina \"Add Asset\" por medio de la manipulaci\u00f3n de un campo \"URL\", lo que podr\u00eda permitir un usuario malicioso remoto ejecutar c\u00f3digo arbitrario"
}
],
"id": "CVE-2020-21101",
"lastModified": "2026-06-17T03:03:32.963",
"metrics": {
"cvssMetricV2": [
{
"acInsufInfo": false,
"baseSeverity": "LOW",
"cvssData": {
"accessComplexity": "MEDIUM",
"accessVector": "NETWORK",
"authentication": "SINGLE",
"availabilityImpact": "NONE",
"baseScore": 3.5,
"confidentialityImpact": "NONE",
"integrityImpact": "PARTIAL",
"vectorString": "AV:N/AC:M/Au:S/C:N/I:P/A:N",
"version": "2.0"
},
"exploitabilityScore": 6.8,
"impactScore": 2.9,
"obtainAllPrivilege": false,
"obtainOtherPrivilege": false,
"obtainUserPrivilege": false,
"source": "nvd@nist.gov",
"type": "Primary",
"userInteractionRequired": true
}
],
"cvssMetricV31": [
{
"cvssData": {
"attackComplexity": "LOW",
"attackVector": "NETWORK",
"availabilityImpact": "NONE",
"baseScore": 5.4,
"baseSeverity": "MEDIUM",
"confidentialityImpact": "LOW",
"integrityImpact": "LOW",
"privilegesRequired": "LOW",
"scope": "CHANGED",
"userInteraction": "REQUIRED",
"vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N",
"version": "3.1"
},
"exploitabilityScore": 2.3,
"impactScore": 2.7,
"source": "nvd@nist.gov",
"type": "Primary"
}
]
},
"published": "2021-04-29T17:15:08.877",
"references": [
{
"source": "cve@mitre.org",
"tags": [
"Third Party Advisory"
],
"url": "https://github.com/Screenly/screenly-ose/issues/1254"
},
{
"source": "af854a3a-2127-422b-91ae-364da2661108",
"tags": [
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],
"url": "https://github.com/Screenly/screenly-ose/issues/1254"
}
],
"sourceIdentifier": "cve@mitre.org",
"vulnStatus": "Modified",
"weaknesses": [
{
"description": [
{
"lang": "en",
"value": "CWE-79"
}
],
"source": "nvd@nist.gov",
"type": "Primary"
}
]
}
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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.
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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.
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