CVE-2021-36686 - Vulnerability Details - OpenCVE

Description

Cross Site Scripting (XSS) vulnerability in yapi 1.9.1 allows attackers to execute arbitrary code via the /interface/api edit page.

Published: 2023-01-26

Score: 5.4 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:ymfe:yapi:1.9.1:*:*:*:*:*:*:*

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-2023-0328	Cross Site Scripting (XSS) vulnerability in yapi 1.9.1 allows attackers to execute arbitrary code via the /interface/api edit page.
Github GHSA	GHSA-4jqw-vfmj-9rmh	Cross-site Scripting in yapi-vendor

No CVSS v4.0

Attack Vector Network

Attack Complexity Low

Privileges Required Low

Scope Changed

Confidentiality Impact Low

Integrity Impact Low

Availability Impact None

User Interaction Required

No CVSS v3.0

No CVSS v2

This CVE is not in the KEV list.

The EPSS score is 0.00356.

Exploitation poc

Automatable no

Technical Impact partial

References

Link	Providers
https://github.com/YMFE/yapi/issues/2190
https://github.com/YMFE/yapi/issues/2240

History

Tue, 01 Apr 2025 14:15:00 +0000

Type	Values Removed	Values Added
Metrics		ssvc `{'options': {'Automatable': 'no', 'Exploitation': 'poc', 'Technical Impact': 'partial'}, 'version': '2.0.3'}`

Subscriptions

Ymfe Yapi

MITRE

Status: PUBLISHED

Assigner: mitre

Published: 2023-01-26T00:00:00.000Z

Updated: 2025-04-01T14:03:11.217Z

Reserved: 2021-07-12T00:00:00.000Z

Link: CVE-2021-36686

Vulnrichment

Updated: 2024-08-04T01:01:58.330Z

NVD

Status : Modified

Published: 2023-01-26T21:15:24.030

Modified: 2025-04-01T14:15:15.713

Link: CVE-2021-36686

Redhat

No data.

OpenCVE Enrichment

No data.

Weaknesses

CWE-79

{"dataType": "CVE_RECORD", "dataVersion": "5.1", "cveMetadata": {"state": "PUBLISHED", "cveId": "CVE-2021-36686", "assignerOrgId": "8254265b-2729-46b6-b9e3-3dfca2d5bfca", "assignerShortName": "mitre", "dateUpdated": "2025-04-01T14:03:11.217Z", "dateReserved": "2021-07-12T00:00:00.000Z", "datePublished": "2023-01-26T00:00:00.000Z"}, "containers": {"cna": {"providerMetadata": {"orgId": "8254265b-2729-46b6-b9e3-3dfca2d5bfca", "shortName": "mitre", "dateUpdated": "2023-02-21T00:00:00.000Z"}, "descriptions": [{"lang": "en", "value": "Cross Site Scripting (XSS) vulnerability in yapi 1.9.1 allows attackers to execute arbitrary code via the /interface/api edit page."}], "affected": [{"vendor": "n/a", "product": "n/a", "versions": [{"version": "n/a", "status": "affected"}]}], "references": [{"url": "https://github.com/YMFE/yapi/issues/2190"}, {"url": "https://github.com/YMFE/yapi/issues/2240"}], "problemTypes": [{"descriptions": [{"type": "text", "lang": "en", "description": "n/a"}]}]}, "adp": [{"providerMetadata": {"orgId": "af854a3a-2127-422b-91ae-364da2661108", "shortName": "CVE", "dateUpdated": "2024-08-04T01:01:58.330Z"}, "title": "CVE Program Container", "references": [{"url": "https://github.com/YMFE/yapi/issues/2190", "tags": ["x_transferred"]}, {"url": "https://github.com/YMFE/yapi/issues/2240", "tags": ["x_transferred"]}]}, {"problemTypes": [{"descriptions": [{"type": "CWE", "cweId": "CWE-79", "lang": "en", "description": "CWE-79 Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')"}]}], "metrics": [{"cvssV3_1": {"scope": "CHANGED", "version": "3.1", "baseScore": 5.4, "attackVector": "NETWORK", "baseSeverity": "MEDIUM", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N", "integrityImpact": "LOW", "userInteraction": "REQUIRED", "attackComplexity": "LOW", "availabilityImpact": "NONE", "privilegesRequired": "LOW", "confidentialityImpact": "LOW"}}, {"other": {"type": "ssvc", "content": {"timestamp": "2025-04-01T14:02:40.543781Z", "id": "CVE-2021-36686", "options": [{"Exploitation": "poc"}, {"Automatable": "no"}, {"Technical Impact": "partial"}], "role": "CISA Coordinator", "version": "2.0.3"}}}], "title": "CISA ADP Vulnrichment", "providerMetadata": {"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "shortName": "CISA-ADP", "dateUpdated": "2025-04-01T14:03:11.217Z"}}]}}

{"dataType": "CVE_RECORD", "containers": {"adp": [{"title": "CVE Program Container", "references": [{"url": "https://github.com/YMFE/yapi/issues/2190", "tags": ["x_transferred"]}, {"url": "https://github.com/YMFE/yapi/issues/2240", "tags": ["x_transferred"]}], "providerMetadata": {"orgId": "af854a3a-2127-422b-91ae-364da2661108", "shortName": "CVE", "dateUpdated": "2024-08-04T01:01:58.330Z"}}, {"title": "CISA ADP Vulnrichment", "metrics": [{"cvssV3_1": {"scope": "CHANGED", "version": "3.1", "baseScore": 5.4, "attackVector": "NETWORK", "baseSeverity": "MEDIUM", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N", "integrityImpact": "LOW", "userInteraction": "REQUIRED", "attackComplexity": "LOW", "availabilityImpact": "NONE", "privilegesRequired": "LOW", "confidentialityImpact": "LOW"}}, {"other": {"type": "ssvc", "content": {"id": "CVE-2021-36686", "role": "CISA Coordinator", "options": [{"Exploitation": "poc"}, {"Automatable": "no"}, {"Technical Impact": "partial"}], "version": "2.0.3", "timestamp": "2025-04-01T14:02:40.543781Z"}}}], "problemTypes": [{"descriptions": [{"lang": "en", "type": "CWE", "cweId": "CWE-79", "description": "CWE-79 Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')"}]}], "providerMetadata": {"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "shortName": "CISA-ADP", "dateUpdated": "2025-04-01T14:03:03.516Z"}}], "cna": {"affected": [{"vendor": "n/a", "product": "n/a", "versions": [{"status": "affected", "version": "n/a"}]}], "references": [{"url": "https://github.com/YMFE/yapi/issues/2190"}, {"url": "https://github.com/YMFE/yapi/issues/2240"}], "descriptions": [{"lang": "en", "value": "Cross Site Scripting (XSS) vulnerability in yapi 1.9.1 allows attackers to execute arbitrary code via the /interface/api edit page."}], "problemTypes": [{"descriptions": [{"lang": "en", "type": "text", "description": "n/a"}]}], "providerMetadata": {"orgId": "8254265b-2729-46b6-b9e3-3dfca2d5bfca", "shortName": "mitre", "dateUpdated": "2023-02-21T00:00:00.000Z"}}}, "cveMetadata": {"cveId": "CVE-2021-36686", "state": "PUBLISHED", "dateUpdated": "2025-04-01T14:03:11.217Z", "dateReserved": "2021-07-12T00:00:00.000Z", "assignerOrgId": "8254265b-2729-46b6-b9e3-3dfca2d5bfca", "datePublished": "2023-01-26T00:00:00.000Z", "assignerShortName": "mitre"}, "dataVersion": "5.1"}

{"configurations": [{"nodes": [{"cpeMatch": [{"criteria": "cpe:2.3:a:ymfe:yapi:1.9.1:*:*:*:*:*:*:*", "matchCriteriaId": "E63DF2FF-172A-49A4-98B4-F5EF98D8BB25", "vulnerable": true}], "negate": false, "operator": "OR"}]}], "cveTags": [], "descriptions": [{"lang": "en", "value": "Cross Site Scripting (XSS) vulnerability in yapi 1.9.1 allows attackers to execute arbitrary code via the /interface/api edit page."}, {"lang": "es", "value": "Una vulnerabilidad de Cross Site Scripting (XSS) en yapi 1.9.1 permite a los atacantes ejecutar c\u00f3digo arbitrario a trav\u00e9s de la p\u00e1gina de edici\u00f3n /interface/api."}], "id": "CVE-2021-36686", "lastModified": "2025-04-01T14:15:15.713", "metrics": {"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"}, {"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": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "type": "Secondary"}]}, "published": "2023-01-26T21:15:24.030", "references": [{"source": "cve@mitre.org", "tags": ["Exploit", "Third Party Advisory"], "url": "https://github.com/YMFE/yapi/issues/2190"}, {"source": "cve@mitre.org", "url": "https://github.com/YMFE/yapi/issues/2240"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "tags": ["Exploit", "Third Party Advisory"], "url": "https://github.com/YMFE/yapi/issues/2190"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "url": "https://github.com/YMFE/yapi/issues/2240"}], "sourceIdentifier": "cve@mitre.org", "vulnStatus": "Modified", "weaknesses": [{"description": [{"lang": "en", "value": "CWE-79"}], "source": "nvd@nist.gov", "type": "Primary"}, {"description": [{"lang": "en", "value": "CWE-79"}], "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "type": "Secondary"}]}