{ "document": { "category": "csaf_base", "csaf_version": "2.0", "distribution": { "tlp": { "label": "WHITE" } }, "lang": "en", "notes": [ { "category": "legal_disclaimer", "text": "The Netherlands Cyber Security Center (henceforth: NCSC-NL) maintains this portal to enhance access to its information and vulnerabilities. The use of this information is subject to the following terms and conditions:\n\nThe vulnerabilities disclosed in this portal are gathered by NCSC-NL from a variety of open sources, which the user can retrieve from other platforms. NCSC-NL makes every reasonable effort to ensure that the content of this portal is kept up to date, and that it is accurate and complete. Nevertheless, NCSC-NL cannot entirely rule out the possibility of errors, and therefore cannot give any warranty in respect of its completeness, accuracy or real-time keeping up-to-date. NCSC-NL does not control nor guarantee the accuracy, relevance, timeliness or completeness of information obtained from these external sources. The vulnerabilities disclosed in this portal are intended solely for the convenience of professional parties to take appropriate measures to manage the risks posed to the cybersecurity. No rights can be derived from the information provided therein.\n\nNCSC-NL and the Kingdom of the Netherlands assume no legal liability or responsibility for any damage resulting from either the use or inability of use of the vulnerabilities disclosed in this portal. This includes damage resulting from the inaccuracy of incompleteness of the information contained in it.\nThe information on this page is subject to Dutch law. All disputes related to or arising from the use of this portal regarding the disclosure of vulnerabilities will be submitted to the competent court in The Hague. This choice of means also applies to the court in summary proceedings." } ], "publisher": { "category": "coordinator", "contact_details": "cert@ncsc.nl", "name": "National Cyber Security Centre", "namespace": "https://www.ncsc.nl/" }, "title": "CVE-2026-30877", "tracking": { "current_release_date": "2026-04-02T16:20:37.136553Z", "generator": { "date": "2026-02-17T15:00:00Z", "engine": { "name": "V.E.L.M.A", "version": "1.7" } }, "id": "CVE-2026-30877", "initial_release_date": "2026-03-31T01:25:32.130315Z", "revision_history": [ { "date": "2026-03-31T01:25:32.130315Z", "number": "1", "summary": "CVE created.| Source created.| CVE status created. (valid)| Description created for source.| CVSS created.| References created (3).| CWES updated (1)." }, { "date": "2026-03-31T01:25:33.933799Z", "number": "2", "summary": "NCSC Score created." }, { "date": "2026-03-31T01:38:45.662893Z", "number": "3", "summary": "Source created.| CVE status created. (valid)| Description created for source.| CVSS created.| Products connected (1).| References created (3).| CWES updated (1)." }, { "date": "2026-03-31T01:38:49.465517Z", "number": "4", "summary": "NCSC Score updated." }, { "date": "2026-03-31T07:35:09.111956Z", "number": "5", "summary": "NCSC Score updated." }, { "date": "2026-03-31T17:02:35.548043Z", "number": "6", "summary": "Source connected.| CVE status created. (valid)| EPSS created." }, { "date": "2026-03-31T17:02:40.266808Z", "number": "7", "summary": "NCSC Score updated." }, { "date": "2026-03-31T23:07:44.282292Z", "number": "8", "summary": "Source created.| CVE status created. (valid)| Description created for source.| CVSS created.| References created (5).| CWES updated (1)." }, { "date": "2026-03-31T23:07:54.662172Z", "number": "9", "summary": "NCSC Score updated." }, { "date": "2026-04-01T23:25:55.290227Z", "number": "10", "summary": "Products connected (1).| Product Identifiers created (1)." }, { "date": "2026-04-01T23:25:58.543781Z", "number": "11", "summary": "NCSC Score updated." }, { "date": "2026-04-02T15:39:45.039133Z", "number": "12", "summary": "Unknown change." }, { "date": "2026-04-02T15:39:56.655325Z", "number": "13", "summary": "NCSC Score updated." } ], "status": "interim", "version": "13" } }, "product_tree": { "branches": [ { "branches": [ { "branches": [ { "category": "product_version_range", "name": "vers:unknown/<5.2.3", "product": { "name": "vers:unknown/<5.2.3", "product_id": "CSAFPID-5982832", "product_identification_helper": { "cpe": "cpe:2.3:a:basercms:basercms:*:*:*:*:*:*:*:*" } } } ], "category": "product_name", "name": "baserCMS" } ], "category": "vendor", "name": "baserCMS" }, { "branches": [ { "branches": [ { "category": "product_version_range", "name": "vers:unknown/<5.2.3", "product": { "name": "vers:unknown/<5.2.3", "product_id": "CSAFPID-5966272" } } ], "category": "product_name", "name": "basercms" } ], "category": "vendor", "name": "baserproject" } ] }, "vulnerabilities": [ { "cve": "CVE-2026-30877", "cwe": { "id": "CWE-78", "name": "Improper Neutralization of Special Elements used in an OS Command ('OS Command Injection')" }, "notes": [ { "category": "description", "text": "baserCMS is a website development framework. Prior to version 5.2.3, there is an OS command injection vulnerability in the update functionality. Due to this issue, an authenticated user with administrator privileges in baserCMS can execute arbitrary OS commands on the server with the privileges of the user account running baserCMS. This issue has been patched in version 5.2.3.", "title": "nvd - https://services.nvd.nist.gov/rest/json/cves/2.0?cveId=CVE-2026-30877" }, { "category": "description", "text": "baserCMS is a website development framework. Prior to version 5.2.3, there is an OS command injection vulnerability in the update functionality. Due to this issue, an authenticated user with administrator privileges in baserCMS can execute arbitrary OS commands on the server with the privileges of the user account running baserCMS. This issue has been patched in version 5.2.3.", "title": "cveprojectv5 - https://raw.githubusercontent.com/CVEProject/cvelistV5/main/cves/2026/30xxx/CVE-2026-30877.json" }, { "category": "description", "text": "### Summary\nThe latest version of baserCMS (basercms-5.2.2) contains an OS command injection vulnerability (CWE-78) in its update functionality.\nDue to this issue, an authenticated user with administrator privileges in baserCMS can execute arbitrary OS commands on the server with the privileges of the user account running baserCMS.\n\n### Details\nPlease refer to the attached materials.\n[OSコマンドインジェクション（baserCMSのアップデート機能）.pdf](https://github.com/user-attachments/files/25468689/OS.baserCMS.pdf)\n\n\n\n### Impact\nAn authenticated user with administrator privileges in baserCMS can execute OS commands on the server with the privileges of the user account running baserCMS.", "title": "github - https://api.github.com/advisories/GHSA-m9g7-rgfc-jcm7" }, { "category": "other", "text": "0.00174", "title": "EPSS" }, { "category": "other", "text": "4.4", "title": "NCSC Score" }, { "category": "other", "text": "Is related to an uncommon product vendor, Is related to (a version of) an uncommon product", "title": "NCSC Score top decreasing factors" } ], "product_status": { "known_affected": [ "CSAFPID-5966272", "CSAFPID-5982832" ] }, "references": [ { "category": "external", "summary": "Source - nvd", "url": "https://services.nvd.nist.gov/rest/json/cves/2.0?cveId=CVE-2026-30877" }, { "category": "external", "summary": "Source - cveprojectv5", "url": "https://raw.githubusercontent.com/CVEProject/cvelistV5/main/cves/2026/30xxx/CVE-2026-30877.json" }, { "category": "external", "summary": "Source - first", "url": "https://api.first.org/data/v1/epss?limit=10000&offset=0" }, { "category": "external", "summary": "Source - github", "url": "https://api.github.com/advisories/GHSA-m9g7-rgfc-jcm7" }, { "category": "external", "summary": "Reference - cveprojectv5; github; nvd", "url": "https://basercms.net/security/JVN_20837860" }, { "category": "external", "summary": "Reference - cveprojectv5; github; nvd", "url": "https://github.com/baserproject/basercms/releases/tag/5.2.3" }, { "category": "external", "summary": "Reference - cveprojectv5; github; nvd", "url": "https://github.com/baserproject/basercms/security/advisories/GHSA-m9g7-rgfc-jcm7" }, { "category": "external", "summary": "Reference - github", "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-30877" }, { "category": "external", "summary": "Reference - github", "url": "https://github.com/advisories/GHSA-m9g7-rgfc-jcm7" } ], "scores": [ { "cvss_v3": { "version": "3.1", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:C/C:H/I:H/A:H", "baseScore": 9.1, "baseSeverity": "CRITICAL" }, "products": [ "CSAFPID-5966272", "CSAFPID-5982832" ] } ], "title": "CVE-2026-30877" } ] }