CVE-2020-15148

Unsafe deserialization in Yii 2

View on CVE.org

Published Sep 15, 2020 CVSS 3.1 · 8.9 High EPSS 77.5% KEV · Not listed

Description

Yii 2 (yiisoft/yii2) before version 2.0.38 is vulnerable to remote code execution if the application calls `unserialize()` on arbitrary user input. This is fixed in version 2.0.38. A possible workaround without upgrading is available in the linked advisory.

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

yiisoft

yii2

affected

Version	Status	Constraints
`< 2.0.38`	affected	—

Configuration 1 [-]

cpe:2.3:a:yiiframework:yii:*:*:*:*:*:*:*:*

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
Github GHSA	GHSA-699q-wcff-g9mj	Unsafe deserialization in Yii 2

Metrics

No CVSS v4.0

Attack Vector Network

Attack Complexity High

Privileges Required None

Scope Changed

Confidentiality Impact Low

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: 77.5% (77.538% probability within 30 days)

Key SSVC decision points have not yet been added.

References

Link	Providers
https://github.com/yiisoft/yii2/commit/9abccb96d7c5ddb569f92d1a748f50ee9b3e2b99
https://github.com/yiisoft/yii2/security/advisories/GHSA-699q-wcff-g9mj

History

No history.

Subscriptions

Yiiframework Yii

Weaknesses

CWE-502

Sources

CVE record Updated: Aug 4, 2024, 1:08 PM

Status: PUBLISHED
Assigner: GitHub_M
Published: Sep 15, 2020, 6:25 PM
Updated: Aug 4, 2024, 1:08 PM
Reserved: Jun 25, 2020, 12:00 AM

View source JSON

Vulnrichment No data

No data.

NVD Updated: Jun 17, 2026, 2:56 AM

Status: Modified
Published: Sep 15, 2020, 7:15 PM
Modified: Jun 17, 2026, 2:56 AM

View source JSON

Red Hat No data

No data.

OpenCVE enrichment No data

No data.

{"containers": {"cna": {"affected": [{"product": "yii2", "vendor": "yiisoft", "versions": [{"status": "affected", "version": "< 2.0.38"}]}], "descriptions": [{"lang": "en", "value": "Yii 2 (yiisoft/yii2) before version 2.0.38 is vulnerable to remote code execution if the application calls `unserialize()` on arbitrary user input. This is fixed in version 2.0.38. A possible workaround without upgrading is available in the linked advisory."}], "metrics": [{"cvssV3_1": {"attackComplexity": "HIGH", "attackVector": "NETWORK", "availabilityImpact": "HIGH", "baseScore": 8.9, "baseSeverity": "HIGH", "confidentialityImpact": "LOW", "integrityImpact": "HIGH", "privilegesRequired": "NONE", "scope": "CHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:C/C:L/I:H/A:H", "version": "3.1"}}], "problemTypes": [{"descriptions": [{"cweId": "CWE-502", "description": "{\"CWE-502\":\"Deserialization of Untrusted Data\"}", "lang": "en", "type": "CWE"}]}], "providerMetadata": {"dateUpdated": "2020-09-15T18:25:12.000Z", "orgId": "a0819718-46f1-4df5-94e2-005712e83aaa", "shortName": "GitHub_M"}, "references": [{"tags": ["x_refsource_CONFIRM"], "url": "https://github.com/yiisoft/yii2/security/advisories/GHSA-699q-wcff-g9mj"}, {"tags": ["x_refsource_MISC"], "url": "https://github.com/yiisoft/yii2/commit/9abccb96d7c5ddb569f92d1a748f50ee9b3e2b99"}], "source": {"advisory": "GHSA-699q-wcff-g9mj", "discovery": "UNKNOWN"}, "title": "Unsafe deserialization in Yii 2", "x_legacyV4Record": {"CVE_data_meta": {"ASSIGNER": "security-advisories@github.com", "ID": "CVE-2020-15148", "STATE": "PUBLIC", "TITLE": "Unsafe deserialization in Yii 2"}, "affects": {"vendor": {"vendor_data": [{"product": {"product_data": [{"product_name": "yii2", "version": {"version_data": [{"version_value": "< 2.0.38"}]}}]}, "vendor_name": "yiisoft"}]}}, "data_format": "MITRE", "data_type": "CVE", "data_version": "4.0", "description": {"description_data": [{"lang": "eng", "value": "Yii 2 (yiisoft/yii2) before version 2.0.38 is vulnerable to remote code execution if the application calls `unserialize()` on arbitrary user input. This is fixed in version 2.0.38. A possible workaround without upgrading is available in the linked advisory."}]}, "impact": {"cvss": {"attackComplexity": "HIGH", "attackVector": "NETWORK", "availabilityImpact": "HIGH", "baseScore": 8.9, "baseSeverity": "HIGH", "confidentialityImpact": "LOW", "integrityImpact": "HIGH", "privilegesRequired": "NONE", "scope": "CHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:C/C:L/I:H/A:H", "version": "3.1"}}, "problemtype": {"problemtype_data": [{"description": [{"lang": "eng", "value": "{\"CWE-502\":\"Deserialization of Untrusted Data\"}"}]}]}, "references": {"reference_data": [{"name": "https://github.com/yiisoft/yii2/security/advisories/GHSA-699q-wcff-g9mj", "refsource": "CONFIRM", "url": "https://github.com/yiisoft/yii2/security/advisories/GHSA-699q-wcff-g9mj"}, {"name": "https://github.com/yiisoft/yii2/commit/9abccb96d7c5ddb569f92d1a748f50ee9b3e2b99", "refsource": "MISC", "url": "https://github.com/yiisoft/yii2/commit/9abccb96d7c5ddb569f92d1a748f50ee9b3e2b99"}]}, "source": {"advisory": "GHSA-699q-wcff-g9mj", "discovery": "UNKNOWN"}}}, "adp": [{"providerMetadata": {"orgId": "af854a3a-2127-422b-91ae-364da2661108", "shortName": "CVE", "dateUpdated": "2024-08-04T13:08:21.907Z"}, "title": "CVE Program Container", "references": [{"tags": ["x_refsource_CONFIRM", "x_transferred"], "url": "https://github.com/yiisoft/yii2/security/advisories/GHSA-699q-wcff-g9mj"}, {"tags": ["x_refsource_MISC", "x_transferred"], "url": "https://github.com/yiisoft/yii2/commit/9abccb96d7c5ddb569f92d1a748f50ee9b3e2b99"}]}]}, "cveMetadata": {"assignerOrgId": "a0819718-46f1-4df5-94e2-005712e83aaa", "assignerShortName": "GitHub_M", "cveId": "CVE-2020-15148", "datePublished": "2020-09-15T18:25:12.000Z", "dateReserved": "2020-06-25T00:00:00.000Z", "dateUpdated": "2024-08-04T13:08:21.907Z", "state": "PUBLISHED"}, "dataType": "CVE_RECORD", "dataVersion": "5.1"}

{"affected": [{"affectedData": [{"product": "yii2", "vendor": "yiisoft", "versions": [{"status": "affected", "version": "< 2.0.38"}]}], "source": "security-advisories@github.com"}], "configurations": [{"nodes": [{"cpeMatch": [{"criteria": "cpe:2.3:a:yiiframework:yii:*:*:*:*:*:*:*:*", "matchCriteriaId": "30ABEF22-556B-4E14-BA98-93215655A62D", "versionEndExcluding": "2.0.38", "vulnerable": true}], "negate": false, "operator": "OR"}]}], "cveTags": [], "descriptions": [{"lang": "en", "value": "Yii 2 (yiisoft/yii2) before version 2.0.38 is vulnerable to remote code execution if the application calls `unserialize()` on arbitrary user input. This is fixed in version 2.0.38. A possible workaround without upgrading is available in the linked advisory."}, {"lang": "es", "value": "Yii 2 (yiisoft/yii2) versiones anteriores a 2.0.38 es vulnerable a una Ejecuci\u00f3n de C\u00f3digo Remota si la aplicaci\u00f3n llama a \"unserialize()\" en una entrada arbitraria de usuario. Esto es corregido en la versi\u00f3n 2.0.38. Una posible soluci\u00f3n alternativa sin actualizaci\u00f3n est\u00e1 disponible en el aviso vinculado"}], "id": "CVE-2020-15148", "lastModified": "2026-06-17T02:56:08.787", "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": "HIGH", "attackVector": "NETWORK", "availabilityImpact": "HIGH", "baseScore": 8.9, "baseSeverity": "HIGH", "confidentialityImpact": "LOW", "integrityImpact": "HIGH", "privilegesRequired": "NONE", "scope": "CHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:C/C:L/I:H/A:H", "version": "3.1"}, "exploitabilityScore": 2.2, "impactScore": 6.0, "source": "security-advisories@github.com", "type": "Secondary"}, {"cvssData": {"attackComplexity": "LOW", "attackVector": "NETWORK", "availabilityImpact": "HIGH", "baseScore": 10.0, "baseSeverity": "CRITICAL", "confidentialityImpact": "HIGH", "integrityImpact": "HIGH", "privilegesRequired": "NONE", "scope": "CHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H", "version": "3.1"}, "exploitabilityScore": 3.9, "impactScore": 6.0, "source": "nvd@nist.gov", "type": "Primary"}]}, "published": "2020-09-15T19:15:12.963", "references": [{"source": "security-advisories@github.com", "tags": ["Patch", "Third Party Advisory"], "url": "https://github.com/yiisoft/yii2/commit/9abccb96d7c5ddb569f92d1a748f50ee9b3e2b99"}, {"source": "security-advisories@github.com", "tags": ["Mitigation", "Third Party Advisory"], "url": "https://github.com/yiisoft/yii2/security/advisories/GHSA-699q-wcff-g9mj"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "tags": ["Patch", "Third Party Advisory"], "url": "https://github.com/yiisoft/yii2/commit/9abccb96d7c5ddb569f92d1a748f50ee9b3e2b99"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "tags": ["Mitigation", "Third Party Advisory"], "url": "https://github.com/yiisoft/yii2/security/advisories/GHSA-699q-wcff-g9mj"}], "sourceIdentifier": "security-advisories@github.com", "vulnStatus": "Modified", "weaknesses": [{"description": [{"lang": "en", "value": "CWE-502"}], "source": "security-advisories@github.com", "type": "Secondary"}]}