CVE-2021-23899

View on CVE.org

Published Jan 13, 2021 CVSS 3.1 · 9.8 Critical EPSS 2.1% KEV · Not listed

Description

OWASP json-sanitizer before 1.2.2 may emit closing SCRIPT tags and CDATA section delimiters for crafted input. This allows an attacker to inject arbitrary HTML or XML into embedding documents.

Affected Products

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:owasp:json-sanitizer:*:*:*:*:*:*:*:*

No data.

No data available yet.

Remediation

No solution or workaround provided in the CVE record

Tracking

Sign in to view the affected projects.

Advisories

Source	ID	Title
EUVD	EUVD-2021-1360	OWASP json-sanitizer before 1.2.2 may emit closing SCRIPT tags and CDATA section delimiters for crafted input. This allows an attacker to inject arbitrary HTML or XML into embedding documents.
Github GHSA	GHSA-mm8j-9x84-m9cv	Arbitrary code injection in json-sanitizer

Metrics

No CVSS v4.0

Attack Vector Network

Attack Complexity Low

Privileges Required None

Scope Unchanged

Confidentiality Impact High

Integrity Impact High

Availability Impact High

User Interaction None

No CVSS v3.0

Access Vector Network

Access Complexity Low

Authentication None

Confidentiality Impact Partial

Integrity Impact Partial

Availability Impact Partial

This CVE is not in the KEV list.

Exploit prediction score: 2.1% (2.093% probability within 30 days)

Key SSVC decision points have not yet been added.

References

Link	Providers
https://github.com/OWASP/json-sanitizer/commit/a37f594f7378a1c76b3283e0dab9e1ab1dc0247e
https://github.com/OWASP/json-sanitizer/compare/v1.2.1...v1.2.2
https://groups.google.com/g/json-sanitizer-support/c/dAW1AeNMoA0

History

No history.

Subscriptions

Owasp Json-sanitizer

Weaknesses

CWE-611

Sources

CVE record Updated: Aug 3, 2024, 7:14 PM

Status: PUBLISHED
Assigner: mitre
Published: Jan 13, 2021, 3:49 PM
Updated: Aug 3, 2024, 7:14 PM
Reserved: Jan 12, 2021, 12:00 AM

View source JSON

Vulnrichment No data

No data.

NVD Updated: Jun 17, 2026, 3:39 AM

Status: Modified
Published: Jan 13, 2021, 4:15 PM
Modified: Jun 17, 2026, 3:39 AM

View source JSON

Red Hat No data

No data.

OpenCVE enrichment No data

No data.

{"containers": {"cna": {"affected": [{"product": "n/a", "vendor": "n/a", "versions": [{"status": "affected", "version": "n/a"}]}], "descriptions": [{"lang": "en", "value": "OWASP json-sanitizer before 1.2.2 may emit closing SCRIPT tags and CDATA section delimiters for crafted input. This allows an attacker to inject arbitrary HTML or XML into embedding documents."}], "problemTypes": [{"descriptions": [{"description": "n/a", "lang": "en", "type": "text"}]}], "providerMetadata": {"dateUpdated": "2021-01-13T15:49:56.000Z", "orgId": "8254265b-2729-46b6-b9e3-3dfca2d5bfca", "shortName": "mitre"}, "references": [{"tags": ["x_refsource_MISC"], "url": "https://github.com/OWASP/json-sanitizer/compare/v1.2.1...v1.2.2"}, {"tags": ["x_refsource_MISC"], "url": "https://groups.google.com/g/json-sanitizer-support/c/dAW1AeNMoA0"}, {"tags": ["x_refsource_MISC"], "url": "https://github.com/OWASP/json-sanitizer/commit/a37f594f7378a1c76b3283e0dab9e1ab1dc0247e"}], "x_legacyV4Record": {"CVE_data_meta": {"ASSIGNER": "cve@mitre.org", "ID": "CVE-2021-23899", "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": "OWASP json-sanitizer before 1.2.2 may emit closing SCRIPT tags and CDATA section delimiters for crafted input. This allows an attacker to inject arbitrary HTML or XML into embedding documents."}]}, "problemtype": {"problemtype_data": [{"description": [{"lang": "eng", "value": "n/a"}]}]}, "references": {"reference_data": [{"name": "https://github.com/OWASP/json-sanitizer/compare/v1.2.1...v1.2.2", "refsource": "MISC", "url": "https://github.com/OWASP/json-sanitizer/compare/v1.2.1...v1.2.2"}, {"name": "https://groups.google.com/g/json-sanitizer-support/c/dAW1AeNMoA0", "refsource": "MISC", "url": "https://groups.google.com/g/json-sanitizer-support/c/dAW1AeNMoA0"}, {"name": "https://github.com/OWASP/json-sanitizer/commit/a37f594f7378a1c76b3283e0dab9e1ab1dc0247e", "refsource": "MISC", "url": "https://github.com/OWASP/json-sanitizer/commit/a37f594f7378a1c76b3283e0dab9e1ab1dc0247e"}]}}}, "adp": [{"providerMetadata": {"orgId": "af854a3a-2127-422b-91ae-364da2661108", "shortName": "CVE", "dateUpdated": "2024-08-03T19:14:09.335Z"}, "title": "CVE Program Container", "references": [{"tags": ["x_refsource_MISC", "x_transferred"], "url": "https://github.com/OWASP/json-sanitizer/compare/v1.2.1...v1.2.2"}, {"tags": ["x_refsource_MISC", "x_transferred"], "url": "https://groups.google.com/g/json-sanitizer-support/c/dAW1AeNMoA0"}, {"tags": ["x_refsource_MISC", "x_transferred"], "url": "https://github.com/OWASP/json-sanitizer/commit/a37f594f7378a1c76b3283e0dab9e1ab1dc0247e"}]}]}, "cveMetadata": {"assignerOrgId": "8254265b-2729-46b6-b9e3-3dfca2d5bfca", "assignerShortName": "mitre", "cveId": "CVE-2021-23899", "datePublished": "2021-01-13T15:49:56.000Z", "dateReserved": "2021-01-12T00:00:00.000Z", "dateUpdated": "2024-08-03T19:14:09.335Z", "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:owasp:json-sanitizer:*:*:*:*:*:*:*:*", "matchCriteriaId": "C22C77CE-0FF1-474E-B921-438980F66C82", "versionEndExcluding": "1.2.2", "vulnerable": true}], "negate": false, "operator": "OR"}]}], "cveTags": [], "descriptions": [{"lang": "en", "value": "OWASP json-sanitizer before 1.2.2 may emit closing SCRIPT tags and CDATA section delimiters for crafted input. This allows an attacker to inject arbitrary HTML or XML into embedding documents."}, {"lang": "es", "value": "OWASP json-sanitizer versiones anteriores a 1.2.2, puede emitir etiquetas SCRIPT de cierre y delimitadores de secci\u00f3n CDATA para una entrada dise\u00f1ada. Esto permite a un atacante inyectar HTML o XML arbitrario en documentos insertados"}], "id": "CVE-2021-23899", "lastModified": "2026-06-17T03:39:00.263", "metrics": {"cvssMetricV2": [{"acInsufInfo": false, "baseSeverity": "HIGH", "cvssData": {"accessComplexity": "LOW", "accessVector": "NETWORK", "authentication": "NONE", "availabilityImpact": "PARTIAL", "baseScore": 7.5, "confidentialityImpact": "PARTIAL", "integrityImpact": "PARTIAL", "vectorString": "AV:N/AC:L/Au:N/C:P/I:P/A:P", "version": "2.0"}, "exploitabilityScore": 10.0, "impactScore": 6.4, "obtainAllPrivilege": false, "obtainOtherPrivilege": false, "obtainUserPrivilege": false, "source": "nvd@nist.gov", "type": "Primary", "userInteractionRequired": false}], "cvssMetricV31": [{"cvssData": {"attackComplexity": "LOW", "attackVector": "NETWORK", "availabilityImpact": "HIGH", "baseScore": 9.8, "baseSeverity": "CRITICAL", "confidentialityImpact": "HIGH", "integrityImpact": "HIGH", "privilegesRequired": "NONE", "scope": "UNCHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H", "version": "3.1"}, "exploitabilityScore": 3.9, "impactScore": 5.9, "source": "nvd@nist.gov", "type": "Primary"}]}, "published": "2021-01-13T16:15:14.413", "references": [{"source": "cve@mitre.org", "tags": ["Patch", "Third Party Advisory"], "url": "https://github.com/OWASP/json-sanitizer/commit/a37f594f7378a1c76b3283e0dab9e1ab1dc0247e"}, {"source": "cve@mitre.org", "tags": ["Patch", "Third Party Advisory"], "url": "https://github.com/OWASP/json-sanitizer/compare/v1.2.1...v1.2.2"}, {"source": "cve@mitre.org", "tags": ["Third Party Advisory"], "url": "https://groups.google.com/g/json-sanitizer-support/c/dAW1AeNMoA0"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "tags": ["Patch", "Third Party Advisory"], "url": "https://github.com/OWASP/json-sanitizer/commit/a37f594f7378a1c76b3283e0dab9e1ab1dc0247e"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "tags": ["Patch", "Third Party Advisory"], "url": "https://github.com/OWASP/json-sanitizer/compare/v1.2.1...v1.2.2"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "tags": ["Third Party Advisory"], "url": "https://groups.google.com/g/json-sanitizer-support/c/dAW1AeNMoA0"}], "sourceIdentifier": "cve@mitre.org", "vulnStatus": "Modified", "weaknesses": [{"description": [{"lang": "en", "value": "CWE-611"}], "source": "nvd@nist.gov", "type": "Primary"}]}