CVE-2021-31721 - Vulnerability Details - OpenCVE

Description

Chevereto before 3.17.1 allows Cross Site Scripting (XSS) via an image title at the image upload stage.

Published: 2021-06-30

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:chevereto:chevereto:*:*:*:*:*:*:*:*

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-2021-18605	Chevereto before 3.17.1 allows Cross Site Scripting (XSS) via an image title at the image upload stage.

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 0.00405.

Key SSVC decision points have not yet been added.

References

Link	Providers
http://chevereto.com
http://packetstormsecurity.com/files/164183/Cloudron-6.2-Cross-Site-Scripting.html
https://www.exploit-db.com/exploits/49859

History

Fri, 11 Jul 2025 13:45:00 +0000

Type	Values Removed	Values Added
Metrics	epss `{'score': 0.00672}`	epss `{'score': 0.00405}`

Subscriptions

Chevereto Chevereto

MITRE

Status: PUBLISHED

Assigner: mitre

Published: 2021-06-30T10:55:15.000Z

Updated: 2024-08-03T23:03:33.753Z

Reserved: 2021-04-23T00:00:00.000Z

Link: CVE-2021-31721

Vulnrichment

No data.

NVD

Status : Modified

Published: 2021-06-30T11:15:08.173

Modified: 2024-11-21T06:06:09.180

Link: CVE-2021-31721

Redhat

No data.

OpenCVE Enrichment

No data.

Weaknesses

CWE-79

{"containers": {"cna": {"affected": [{"product": "n/a", "vendor": "n/a", "versions": [{"status": "affected", "version": "n/a"}]}], "descriptions": [{"lang": "en", "value": "Chevereto before 3.17.1 allows Cross Site Scripting (XSS) via an image title at the image upload stage."}], "problemTypes": [{"descriptions": [{"description": "n/a", "lang": "en", "type": "text"}]}], "providerMetadata": {"dateUpdated": "2021-09-17T21:06:36.000Z", "orgId": "8254265b-2729-46b6-b9e3-3dfca2d5bfca", "shortName": "mitre"}, "references": [{"tags": ["x_refsource_MISC"], "url": "http://chevereto.com"}, {"tags": ["x_refsource_MISC"], "url": "https://www.exploit-db.com/exploits/49859"}, {"tags": ["x_refsource_MISC"], "url": "http://packetstormsecurity.com/files/164183/Cloudron-6.2-Cross-Site-Scripting.html"}], "x_legacyV4Record": {"CVE_data_meta": {"ASSIGNER": "cve@mitre.org", "ID": "CVE-2021-31721", "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": "Chevereto before 3.17.1 allows Cross Site Scripting (XSS) via an image title at the image upload stage."}]}, "problemtype": {"problemtype_data": [{"description": [{"lang": "eng", "value": "n/a"}]}]}, "references": {"reference_data": [{"name": "http://chevereto.com", "refsource": "MISC", "url": "http://chevereto.com"}, {"name": "https://www.exploit-db.com/exploits/49859", "refsource": "MISC", "url": "https://www.exploit-db.com/exploits/49859"}, {"name": "http://packetstormsecurity.com/files/164183/Cloudron-6.2-Cross-Site-Scripting.html", "refsource": "MISC", "url": "http://packetstormsecurity.com/files/164183/Cloudron-6.2-Cross-Site-Scripting.html"}]}}}, "adp": [{"providerMetadata": {"orgId": "af854a3a-2127-422b-91ae-364da2661108", "shortName": "CVE", "dateUpdated": "2024-08-03T23:03:33.753Z"}, "title": "CVE Program Container", "references": [{"tags": ["x_refsource_MISC", "x_transferred"], "url": "http://chevereto.com"}, {"tags": ["x_refsource_MISC", "x_transferred"], "url": "https://www.exploit-db.com/exploits/49859"}, {"tags": ["x_refsource_MISC", "x_transferred"], "url": "http://packetstormsecurity.com/files/164183/Cloudron-6.2-Cross-Site-Scripting.html"}]}]}, "cveMetadata": {"assignerOrgId": "8254265b-2729-46b6-b9e3-3dfca2d5bfca", "assignerShortName": "mitre", "cveId": "CVE-2021-31721", "datePublished": "2021-06-30T10:55:15.000Z", "dateReserved": "2021-04-23T00:00:00.000Z", "dateUpdated": "2024-08-03T23:03:33.753Z", "state": "PUBLISHED"}, "dataType": "CVE_RECORD", "dataVersion": "5.1"}

{"configurations": [{"nodes": [{"cpeMatch": [{"criteria": "cpe:2.3:a:chevereto:chevereto:*:*:*:*:*:*:*:*", "matchCriteriaId": "F5EEB3B1-A4E5-4476-8BCB-474A12CD19CD", "versionEndExcluding": "3.17.1", "vulnerable": true}], "negate": false, "operator": "OR"}]}], "descriptions": [{"lang": "en", "value": "Chevereto before 3.17.1 allows Cross Site Scripting (XSS) via an image title at the image upload stage."}, {"lang": "es", "value": "Chevereto versiones anteriores a 3.17.1, permite un ataque de tipo Cross Site Scripting (XSS) por medio de un t\u00edtulo de imagen en la etapa de carga de im\u00e1genes"}], "id": "CVE-2021-31721", "lastModified": "2024-11-21T06:06:09.180", "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": "2021-06-30T11:15:08.173", "references": [{"source": "cve@mitre.org", "tags": ["Vendor Advisory"], "url": "http://chevereto.com"}, {"source": "cve@mitre.org", "tags": ["Exploit", "Third Party Advisory", "VDB Entry"], "url": "http://packetstormsecurity.com/files/164183/Cloudron-6.2-Cross-Site-Scripting.html"}, {"source": "cve@mitre.org", "tags": ["Exploit", "Third Party Advisory", "VDB Entry"], "url": "https://www.exploit-db.com/exploits/49859"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "tags": ["Vendor Advisory"], "url": "http://chevereto.com"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "tags": ["Exploit", "Third Party Advisory", "VDB Entry"], "url": "http://packetstormsecurity.com/files/164183/Cloudron-6.2-Cross-Site-Scripting.html"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "tags": ["Exploit", "Third Party Advisory", "VDB Entry"], "url": "https://www.exploit-db.com/exploits/49859"}], "sourceIdentifier": "cve@mitre.org", "vulnStatus": "Modified", "weaknesses": [{"description": [{"lang": "en", "value": "CWE-79"}], "source": "nvd@nist.gov", "type": "Primary"}]}