CVE-2021-24155 - Vulnerability Details - OpenCVE

The WordPress Backup and Migrate Plugin – Backup Guard WordPress plugin before 1.6.0 did not ensure that the imported files are of the SGBP format and extension, allowing high privilege users (admin+) to upload arbitrary files, including PHP ones, leading to RCE.

No CVSS v4.0

Attack Vector Network

Attack Complexity Low

Privileges Required High

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 Single

Confidentiality Impact Partial

Integrity Impact Partial

Availability Impact Partial

This CVE is not in the KEV list.

The EPSS score is 0.93119.

Key SSVC decision points have not yet been added.

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

Vendor Product Default status Versions

Unknown

WordPress Backup and Migrate Plugin – Backup Guard

affected

Version	Status	Constraints
`1.6.0`	affected	< 1.6.0

Configuration 1 [-]

cpe:2.3:a:backup-guard:backup_guard:*:*:*:*:*:wordpress:*:*

No data.

No data.

Project Subscriptions

Vendors	Products
Backup-guard Subscribe	Backup Guard Subscribe

Advisories

No advisories yet.

Fixes

Solution

No solution given by the vendor.

Workaround

No workaround given by the vendor.

References

Link	Providers
http://packetstormsecurity.com/files/163382/WordPress-Backup-Guard-1.5.8-Shell-Upload.html
http://packetstormsecurity.com/files/163623/WordPress-Backup-Guard-Authenticated-Remote-Code-Execution.html
https://wpscan.com/vulnerability/d442acac-4394-45e4-b6bb-adf4a40960fb

History

Mon, 14 Jul 2025 13:45:00 +0000

Type	Values Removed	Values Added
Metrics	epss `{'score': 0.92659}`	epss `{'score': 0.923}`

Projects

Sign in to view the affected projects.

MITRE

Status: PUBLISHED

Assigner: WPScan

Published: 2021-04-05T18:27:42

Updated: 2024-08-03T19:21:18.269Z

Reserved: 2021-01-14T00:00:00

Link: CVE-2021-24155

Vulnrichment

No data.

NVD

Status : Modified

Published: 2021-04-05T19:15:14.700

Modified: 2024-11-21T05:52:29.027

Link: CVE-2021-24155

Redhat

No data.

OpenCVE Enrichment

No data.

Weaknesses

CWE-434

{"containers": {"cna": {"affected": [{"product": "WordPress Backup and Migrate Plugin \u2013 Backup Guard", "vendor": "Unknown", "versions": [{"lessThan": "1.6.0", "status": "affected", "version": "1.6.0", "versionType": "custom"}]}], "credits": [{"lang": "en", "value": "Nguyen Van Khanh - SunCSR (Sun* Cyber Security Research) "}], "descriptions": [{"lang": "en", "value": "The WordPress Backup and Migrate Plugin \u2013 Backup Guard WordPress plugin before 1.6.0 did not ensure that the imported files are of the SGBP format and extension, allowing high privilege users (admin+) to upload arbitrary files, including PHP ones, leading to RCE."}], "problemTypes": [{"descriptions": [{"cweId": "CWE-434", "description": "CWE-434 Unrestricted Upload of File with Dangerous Type", "lang": "en", "type": "CWE"}]}], "providerMetadata": {"dateUpdated": "2021-07-21T17:06:14", "orgId": "1bfdd5d7-9bf6-4a53-96ea-42e2716d7a81", "shortName": "WPScan"}, "references": [{"tags": ["x_refsource_CONFIRM"], "url": "https://wpscan.com/vulnerability/d442acac-4394-45e4-b6bb-adf4a40960fb"}, {"tags": ["x_refsource_MISC"], "url": "http://packetstormsecurity.com/files/163382/WordPress-Backup-Guard-1.5.8-Shell-Upload.html"}, {"tags": ["x_refsource_MISC"], "url": "http://packetstormsecurity.com/files/163623/WordPress-Backup-Guard-Authenticated-Remote-Code-Execution.html"}], "source": {"discovery": "UNKNOWN"}, "title": "Backup Guard < 1.6.0 - Authenticated Arbitrary File Upload", "x_generator": "WPScan CVE Generator", "x_legacyV4Record": {"CVE_data_meta": {"ASSIGNER": "contact@wpscan.com", "ID": "CVE-2021-24155", "STATE": "PUBLIC", "TITLE": "Backup Guard < 1.6.0 - Authenticated Arbitrary File Upload"}, "affects": {"vendor": {"vendor_data": [{"product": {"product_data": [{"product_name": "WordPress Backup and Migrate Plugin \u2013 Backup Guard", "version": {"version_data": [{"version_affected": "<", "version_name": "1.6.0", "version_value": "1.6.0"}]}}]}, "vendor_name": "Unknown"}]}}, "credit": [{"lang": "eng", "value": "Nguyen Van Khanh - SunCSR (Sun* Cyber Security Research) "}], "data_format": "MITRE", "data_type": "CVE", "data_version": "4.0", "description": {"description_data": [{"lang": "eng", "value": "The WordPress Backup and Migrate Plugin \u2013 Backup Guard WordPress plugin before 1.6.0 did not ensure that the imported files are of the SGBP format and extension, allowing high privilege users (admin+) to upload arbitrary files, including PHP ones, leading to RCE."}]}, "generator": "WPScan CVE Generator", "problemtype": {"problemtype_data": [{"description": [{"lang": "eng", "value": "CWE-434 Unrestricted Upload of File with Dangerous Type"}]}]}, "references": {"reference_data": [{"name": "https://wpscan.com/vulnerability/d442acac-4394-45e4-b6bb-adf4a40960fb", "refsource": "CONFIRM", "url": "https://wpscan.com/vulnerability/d442acac-4394-45e4-b6bb-adf4a40960fb"}, {"name": "http://packetstormsecurity.com/files/163382/WordPress-Backup-Guard-1.5.8-Shell-Upload.html", "refsource": "MISC", "url": "http://packetstormsecurity.com/files/163382/WordPress-Backup-Guard-1.5.8-Shell-Upload.html"}, {"name": "http://packetstormsecurity.com/files/163623/WordPress-Backup-Guard-Authenticated-Remote-Code-Execution.html", "refsource": "MISC", "url": "http://packetstormsecurity.com/files/163623/WordPress-Backup-Guard-Authenticated-Remote-Code-Execution.html"}]}, "source": {"discovery": "UNKNOWN"}}}, "adp": [{"providerMetadata": {"orgId": "af854a3a-2127-422b-91ae-364da2661108", "shortName": "CVE", "dateUpdated": "2024-08-03T19:21:18.269Z"}, "title": "CVE Program Container", "references": [{"tags": ["x_refsource_CONFIRM", "x_transferred"], "url": "https://wpscan.com/vulnerability/d442acac-4394-45e4-b6bb-adf4a40960fb"}, {"tags": ["x_refsource_MISC", "x_transferred"], "url": "http://packetstormsecurity.com/files/163382/WordPress-Backup-Guard-1.5.8-Shell-Upload.html"}, {"tags": ["x_refsource_MISC", "x_transferred"], "url": "http://packetstormsecurity.com/files/163623/WordPress-Backup-Guard-Authenticated-Remote-Code-Execution.html"}]}]}, "cveMetadata": {"assignerOrgId": "1bfdd5d7-9bf6-4a53-96ea-42e2716d7a81", "assignerShortName": "WPScan", "cveId": "CVE-2021-24155", "datePublished": "2021-04-05T18:27:42", "dateReserved": "2021-01-14T00:00:00", "dateUpdated": "2024-08-03T19:21:18.269Z", "state": "PUBLISHED"}, "dataType": "CVE_RECORD", "dataVersion": "5.1"}

{"configurations": [{"nodes": [{"cpeMatch": [{"criteria": "cpe:2.3:a:backup-guard:backup_guard:*:*:*:*:*:wordpress:*:*", "matchCriteriaId": "75678C98-2584-4870-9CE6-F8529BC491EE", "versionEndExcluding": "1.6.0", "vulnerable": true}], "negate": false, "operator": "OR"}]}], "descriptions": [{"lang": "en", "value": "The WordPress Backup and Migrate Plugin \u2013 Backup Guard WordPress plugin before 1.6.0 did not ensure that the imported files are of the SGBP format and extension, allowing high privilege users (admin+) to upload arbitrary files, including PHP ones, leading to RCE."}, {"lang": "es", "value": "El plugin WordPress Backup and Migrate - Backup Guard WordPress antes de la versi\u00f3n 1.6.0 no garantizaba que los archivos importados tuvieran el formato y la extensi\u00f3n SGBP, lo que permit\u00eda a los usuarios con altos privilegios (admin+) subir archivos arbitrarios, incluidos los de PHP, lo que provocaba un RCE"}], "id": "CVE-2021-24155", "lastModified": "2024-11-21T05:52:29.027", "metrics": {"cvssMetricV2": [{"acInsufInfo": false, "baseSeverity": "MEDIUM", "cvssData": {"accessComplexity": "LOW", "accessVector": "NETWORK", "authentication": "SINGLE", "availabilityImpact": "PARTIAL", "baseScore": 6.5, "confidentialityImpact": "PARTIAL", "integrityImpact": "PARTIAL", "vectorString": "AV:N/AC:L/Au:S/C:P/I:P/A:P", "version": "2.0"}, "exploitabilityScore": 8.0, "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": 7.2, "baseSeverity": "HIGH", "confidentialityImpact": "HIGH", "integrityImpact": "HIGH", "privilegesRequired": "HIGH", "scope": "UNCHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H", "version": "3.1"}, "exploitabilityScore": 1.2, "impactScore": 5.9, "source": "nvd@nist.gov", "type": "Primary"}]}, "published": "2021-04-05T19:15:14.700", "references": [{"source": "contact@wpscan.com", "tags": ["Exploit", "Third Party Advisory", "VDB Entry"], "url": "http://packetstormsecurity.com/files/163382/WordPress-Backup-Guard-1.5.8-Shell-Upload.html"}, {"source": "contact@wpscan.com", "tags": ["Exploit", "Third Party Advisory", "VDB Entry"], "url": "http://packetstormsecurity.com/files/163623/WordPress-Backup-Guard-Authenticated-Remote-Code-Execution.html"}, {"source": "contact@wpscan.com", "tags": ["Exploit", "Third Party Advisory"], "url": "https://wpscan.com/vulnerability/d442acac-4394-45e4-b6bb-adf4a40960fb"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "tags": ["Exploit", "Third Party Advisory", "VDB Entry"], "url": "http://packetstormsecurity.com/files/163382/WordPress-Backup-Guard-1.5.8-Shell-Upload.html"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "tags": ["Exploit", "Third Party Advisory", "VDB Entry"], "url": "http://packetstormsecurity.com/files/163623/WordPress-Backup-Guard-Authenticated-Remote-Code-Execution.html"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "tags": ["Exploit", "Third Party Advisory"], "url": "https://wpscan.com/vulnerability/d442acac-4394-45e4-b6bb-adf4a40960fb"}], "sourceIdentifier": "contact@wpscan.com", "vulnStatus": "Modified", "weaknesses": [{"description": [{"lang": "en", "value": "CWE-434"}], "source": "contact@wpscan.com", "type": "Secondary"}, {"description": [{"lang": "en", "value": "CWE-434"}], "source": "nvd@nist.gov", "type": "Secondary"}]}