CVE-2020-21496 - Vulnerability Details - OpenCVE

Description

A cross-site scripting (XSS) vulnerability in the component /admin/?setting-base.htm of Xiuno BBS 4.0.4 allows attackers to execute arbitrary web scripts or HTML via the sitebrief parameter.

Published: 2021-10-04

Score: 6.1 Medium

EPSS: < 1% Very Low

KEV: No

Impact:

Action:

Analysis

Analysis and contextual insights are available on OpenCVE Cloud.

Default status is the baseline for the product, each version can override it (e.g. patched versions marked unaffected).

Vendor Product Default status Versions

n/a

n/a

affected

Version	Status	Constraints
`n/a`	affected	—

Configuration 1 [-]

cpe:2.3:a:xiuno:xiunobbs:4.0.4:*:*:*:*:*:*:*

No data.

No data available yet.

Remediation

No vendor fix or workaround currently provided.

Additional remediation guidance may be available on OpenCVE Cloud.

Tracking

Sign in to view the affected projects.

Advisories

Source	ID	Title
EUVD	EUVD-2020-14266	A cross-site scripting (XSS) vulnerability in the component /admin/?setting-base.htm of Xiuno BBS 4.0.4 allows attackers to execute arbitrary web scripts or HTML via the sitebrief parameter.

No CVSS v4.0

Attack Vector Network

Attack Complexity Low

Privileges Required None

Scope Changed

Confidentiality Impact Low

Integrity Impact Low

Availability Impact None

User Interaction Required

No CVSS v3.0

Access Vector Network

Access Complexity Medium

Authentication None

Confidentiality Impact None

Integrity Impact Partial

Availability Impact None

This CVE is not in the KEV list.

The EPSS score is 0.00694.

Key SSVC decision points have not yet been added.

References

Link	Providers
https://gitee.com/xiuno/xiunobbs/issues/I16BI3
https://github.com/wanghaiwei/xiuno-docker/issues/5

History

No history.

Subscriptions

Xiuno Xiunobbs

MITRE

Status: PUBLISHED

Assigner: mitre

Published: 2021-10-04T21:00:37.000Z

Updated: 2024-08-04T14:30:32.512Z

Reserved: 2020-08-13T00:00:00.000Z

Link: CVE-2020-21496

Vulnrichment

No data.

NVD

Status : Modified

Published: 2021-10-04T21:15:12.470

Modified: 2026-06-17T03:03:43.813

Link: CVE-2020-21496

Redhat

No data.

OpenCVE Enrichment

No data.

Weaknesses

CWE-79
Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')

{"containers": {"cna": {"affected": [{"product": "n/a", "vendor": "n/a", "versions": [{"status": "affected", "version": "n/a"}]}], "descriptions": [{"lang": "en", "value": "A cross-site scripting (XSS) vulnerability in the component /admin/?setting-base.htm of Xiuno BBS 4.0.4 allows attackers to execute arbitrary web scripts or HTML via the sitebrief parameter."}], "problemTypes": [{"descriptions": [{"description": "n/a", "lang": "en", "type": "text"}]}], "providerMetadata": {"dateUpdated": "2021-10-04T21:00:37.000Z", "orgId": "8254265b-2729-46b6-b9e3-3dfca2d5bfca", "shortName": "mitre"}, "references": [{"tags": ["x_refsource_MISC"], "url": "https://github.com/wanghaiwei/xiuno-docker/issues/5"}, {"tags": ["x_refsource_MISC"], "url": "https://gitee.com/xiuno/xiunobbs/issues/I16BI3"}], "x_legacyV4Record": {"CVE_data_meta": {"ASSIGNER": "cve@mitre.org", "ID": "CVE-2020-21496", "STATE": "PUBLIC"}, "affects": {"vendor": {"vendor_data": [{"product": {"product_data": [{"product_name": "n/a", "version": {"version_data": [{"version_value": "n/a"}]}}]}, "vendor_name": "n/a"}]}}, "data_format": "MITRE", "data_type": "CVE", "data_version": "4.0", "description": {"description_data": [{"lang": "eng", "value": "A cross-site scripting (XSS) vulnerability in the component /admin/?setting-base.htm of Xiuno BBS 4.0.4 allows attackers to execute arbitrary web scripts or HTML via the sitebrief parameter."}]}, "problemtype": {"problemtype_data": [{"description": [{"lang": "eng", "value": "n/a"}]}]}, "references": {"reference_data": [{"name": "https://github.com/wanghaiwei/xiuno-docker/issues/5", "refsource": "MISC", "url": "https://github.com/wanghaiwei/xiuno-docker/issues/5"}, {"name": "https://gitee.com/xiuno/xiunobbs/issues/I16BI3", "refsource": "MISC", "url": "https://gitee.com/xiuno/xiunobbs/issues/I16BI3"}]}}}, "adp": [{"providerMetadata": {"orgId": "af854a3a-2127-422b-91ae-364da2661108", "shortName": "CVE", "dateUpdated": "2024-08-04T14:30:32.512Z"}, "title": "CVE Program Container", "references": [{"tags": ["x_refsource_MISC", "x_transferred"], "url": "https://github.com/wanghaiwei/xiuno-docker/issues/5"}, {"tags": ["x_refsource_MISC", "x_transferred"], "url": "https://gitee.com/xiuno/xiunobbs/issues/I16BI3"}]}]}, "cveMetadata": {"assignerOrgId": "8254265b-2729-46b6-b9e3-3dfca2d5bfca", "assignerShortName": "mitre", "cveId": "CVE-2020-21496", "datePublished": "2021-10-04T21:00:37.000Z", "dateReserved": "2020-08-13T00:00:00.000Z", "dateUpdated": "2024-08-04T14:30:32.512Z", "state": "PUBLISHED"}, "dataType": "CVE_RECORD", "dataVersion": "5.1"}

{"affected": [{"affectedData": [{"product": "n/a", "vendor": "n/a", "versions": [{"status": "affected", "version": "n/a"}]}], "source": "cve@mitre.org"}], "configurations": [{"nodes": [{"cpeMatch": [{"criteria": "cpe:2.3:a:xiuno:xiunobbs:4.0.4:*:*:*:*:*:*:*", "matchCriteriaId": "EA2DCB39-3365-46B2-8A31-CE8CC69E911F", "vulnerable": true}], "negate": false, "operator": "OR"}]}], "cveTags": [], "descriptions": [{"lang": "en", "value": "A cross-site scripting (XSS) vulnerability in the component /admin/?setting-base.htm of Xiuno BBS 4.0.4 allows attackers to execute arbitrary web scripts or HTML via the sitebrief parameter."}, {"lang": "es", "value": "Una vulnerabilidad de tipo cross-site scripting (XSS) en el componente /admin/?setting-base.htm de Xiuno BBS versi\u00f3n 4.0.4, permite a atacantes ejecutar scripts web o HTML arbitrarios por medio del par\u00e1metro sitebrief"}], "id": "CVE-2020-21496", "lastModified": "2026-06-17T03:03:43.813", "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}], "cvssMetricV31": [{"cvssData": {"attackComplexity": "LOW", "attackVector": "NETWORK", "availabilityImpact": "NONE", "baseScore": 6.1, "baseSeverity": "MEDIUM", "confidentialityImpact": "LOW", "integrityImpact": "LOW", "privilegesRequired": "NONE", "scope": "CHANGED", "userInteraction": "REQUIRED", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N", "version": "3.1"}, "exploitabilityScore": 2.8, "impactScore": 2.7, "source": "nvd@nist.gov", "type": "Primary"}]}, "published": "2021-10-04T21:15:12.470", "references": [{"source": "cve@mitre.org", "tags": ["Issue Tracking", "Third Party Advisory"], "url": "https://gitee.com/xiuno/xiunobbs/issues/I16BI3"}, {"source": "cve@mitre.org", "tags": ["Exploit", "Issue Tracking", "Third Party Advisory"], "url": "https://github.com/wanghaiwei/xiuno-docker/issues/5"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "tags": ["Issue Tracking", "Third Party Advisory"], "url": "https://gitee.com/xiuno/xiunobbs/issues/I16BI3"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "tags": ["Exploit", "Issue Tracking", "Third Party Advisory"], "url": "https://github.com/wanghaiwei/xiuno-docker/issues/5"}], "sourceIdentifier": "cve@mitre.org", "vulnStatus": "Modified", "weaknesses": [{"description": [{"lang": "en", "value": "CWE-79"}], "source": "nvd@nist.gov", "type": "Primary"}]}