{"vulnerability": "CVE-2021-2142", "sightings": [{"uuid": "ce7d7aa4-dbf5-41dc-9258-7b10856b9d75", "vulnerability_lookup_origin": "1a89b78e-f703-45f3-bb86-59eb712668bd", "author": "9f56dd64-161d-43a6-b9c3-555944290a09", "vulnerability": "CVE-2021-21425", "type": "exploited", "source": "https://www.exploit-db.com/exploits/49788", "content": "", "creation_timestamp": "2021-04-21T00:00:00.000000Z"}, {"uuid": "8dda1977-ae62-4ae4-996e-b2afddeff934", "vulnerability_lookup_origin": "1a89b78e-f703-45f3-bb86-59eb712668bd", "author": "9f56dd64-161d-43a6-b9c3-555944290a09", "vulnerability": "cve-2021-21425", "type": "seen", "source": "https://schleuss.online/users/vulnbot/statuses/113482191342450640", "content": "", "creation_timestamp": "2024-11-14T16:13:43.861232Z"}, {"uuid": "b2904559-1549-4370-887e-e1804c82285a", "vulnerability_lookup_origin": "1a89b78e-f703-45f3-bb86-59eb712668bd", "author": "9f56dd64-161d-43a6-b9c3-555944290a09", "vulnerability": "CVE-2021-21425", "type": "seen", "source": "MISP/a1e796df-2ad8-4c8d-8b69-737a004e72dd", "content": "", "creation_timestamp": "2025-02-06T03:13:44.000000Z"}, {"uuid": "b889b6c8-ee80-4a98-bc2e-d013df12b298", "vulnerability_lookup_origin": "1a89b78e-f703-45f3-bb86-59eb712668bd", "author": "9f56dd64-161d-43a6-b9c3-555944290a09", "vulnerability": "CVE-2021-21425", "type": "seen", "source": "MISP/a1e796df-2ad8-4c8d-8b69-737a004e72dd", "content": "", "creation_timestamp": "2025-02-23T04:10:33.000000Z"}, {"uuid": "56758bc7-43ec-44b3-aff8-f42382fd0164", "vulnerability_lookup_origin": "1a89b78e-f703-45f3-bb86-59eb712668bd", "author": "9f56dd64-161d-43a6-b9c3-555944290a09", "vulnerability": "CVE-2021-21424", "type": "seen", "source": "https://bsky.app/profile/beikokucyber.bsky.social/post/3ln6ztjbf6j2e", "content": "", "creation_timestamp": "2025-04-19T21:02:14.606220Z"}, {"uuid": "57d85de4-f78b-455e-8de4-537f9f758112", "vulnerability_lookup_origin": "1a89b78e-f703-45f3-bb86-59eb712668bd", "author": "9f56dd64-161d-43a6-b9c3-555944290a09", "vulnerability": "CVE-2021-21425", "type": "seen", "source": "https://github.com/rapid7/metasploit-framework/blob/master/modules/exploits/linux/http/gravcms_exec.rb", "content": "", "creation_timestamp": "2021-05-04T12:34:06.000000Z"}, {"uuid": "b259e746-8039-469f-82ec-7465a483d596", "vulnerability_lookup_origin": "1a89b78e-f703-45f3-bb86-59eb712668bd", "author": "9f56dd64-161d-43a6-b9c3-555944290a09", "vulnerability": "CVE-2021-21425", "type": "published-proof-of-concept", "source": "https://t.me/GithubRedTeam/1365", "content": "GitHub\u76d1\u63a7\u6d88\u606f\u63d0\u9192\uff01\uff01\uff01\n\n\u66f4\u65b0\u4e86\uff1aCVE-2021\n\u63cf\u8ff0\uff1aIt is a nmap script for GravCMS vulnerability (CVE-2021-21425)\nURL\uff1ahttps://github.com/frknktlca/GravCMS_Nmap_Script", "creation_timestamp": "2022-01-19T17:58:11.000000Z"}, {"uuid": "17da3e6c-532b-4118-97e4-16853fc05f4c", "vulnerability_lookup_origin": "1a89b78e-f703-45f3-bb86-59eb712668bd", "author": "9f56dd64-161d-43a6-b9c3-555944290a09", "vulnerability": "CVE-2021-21424", "type": "published-proof-of-concept", "source": "Telegram/ZJp_VCEhaga9OM9NBvz45K3ssC6nL69JeV_dGqoHwNSpsGU", "content": "", "creation_timestamp": "2025-04-15T05:00:08.000000Z"}, {"uuid": "9a0dbbb6-0087-4cd5-894e-75777b615566", "vulnerability_lookup_origin": "1a89b78e-f703-45f3-bb86-59eb712668bd", "author": "9f56dd64-161d-43a6-b9c3-555944290a09", "vulnerability": "CVE-2021-21425", "type": "published-proof-of-concept", "source": "https://t.me/pwnwiki_zhchannel/234", "content": "CVE-2021-21425 GravCMS 1.10.7 \u672a\u7d93\u8eab\u4efd\u9a57\u8b49\u4efb\u610fYAML\u5beb\u5165/\u66f4\u65b0\u6f0f\u6d1e\nhttps://www.pwnwiki.org/index.php?title=CVE-2021-21425_GravCMS_1.10.7_%E6%9C%AA%E7%B6%93%E8%BA%AB%E4%BB%BD%E9%A9%97%E8%AD%89%E4%BB%BB%E6%84%8FYAML%E5%AF%AB%E5%85%A5/%E6%9B%B4%E6%96%B0%E6%BC%8F%E6%B4%9E", "creation_timestamp": "2021-04-22T04:03:09.000000Z"}, {"uuid": "977ce772-85b5-4983-bc54-6e73eae3f996", "vulnerability_lookup_origin": "1a89b78e-f703-45f3-bb86-59eb712668bd", "author": "9f56dd64-161d-43a6-b9c3-555944290a09", "vulnerability": "CVE-2021-21423", "type": "seen", "source": "Telegram/I58s2uZmAQqrY0Sc2S_LCSg9yo3yGDFMC-JsGWGbcm0eZ9o", "content": "", "creation_timestamp": "2026-09-02T01:00:13.191531Z"}, {"uuid": "5334db94-6726-4ea3-a892-6cdbe74706a4", "vulnerability_lookup_origin": "1a89b78e-f703-45f3-bb86-59eb712668bd", "author": "9f56dd64-161d-43a6-b9c3-555944290a09", "vulnerability": "CVE-2021-21425", "type": "published-proof-of-concept", "source": "https://t.me/BlueRedTeam/1643", "content": "#CVE-2021\n\nIt is a nmap script for GravCMS vulnerability (CVE-2021-21425)\n\nhttps://github.com/frknktlca/GravCMS_Nmap_Script\n\n@BlueRedTeam", "creation_timestamp": "2022-01-19T19:24:17.000000Z"}, {"uuid": "5fb52284-99da-422a-a6e5-e3023cbe36eb", "vulnerability_lookup_origin": "1a89b78e-f703-45f3-bb86-59eb712668bd", "author": "9f56dd64-161d-43a6-b9c3-555944290a09", "vulnerability": "CVE-2021-21425", "type": "published-proof-of-concept", "source": "Telegram/bDRsekGT6KsUOKSAQI-KSXDhypQzzgL-gjqbTcCXe2h_h6A", "content": "", "creation_timestamp": "2026-05-15T21:00:05.000000Z"}, {"uuid": "0c3e43b9-7740-4fc5-b00c-59a45cb8c9f0", "vulnerability_lookup_origin": "1a89b78e-f703-45f3-bb86-59eb712668bd", "author": "9f56dd64-161d-43a6-b9c3-555944290a09", "vulnerability": "CVE-2021-21425", "type": "published-proof-of-concept", "source": "Telegram/rpU8_0BAIqup9jbze7w25ozrvXdkaGKGrrCImb0BnEmBLEk", "content": "", "creation_timestamp": "2026-06-13T15:00:07.000000Z"}, {"uuid": "954a21fa-7042-41f1-a4e6-48c29030ee92", "vulnerability_lookup_origin": "1a89b78e-f703-45f3-bb86-59eb712668bd", "author": "9f56dd64-161d-43a6-b9c3-555944290a09", "vulnerability": "CVE-2021-21425", "type": "seen", "source": "https://t.me/GithubRedTeam/90322", "content": "\ud83d\udea8 GitHub \u76d1\u63a7\u6d88\u606f\u63d0\u9192\n\n\ud83d\udea8 \u53d1\u73b0\u5173\u952e\u8bcd\uff1a #RCE #CVE\n\n\ud83d\udce6 \u9879\u76ee\u540d\u79f0\uff1a CVE-2021-21425-RCE\n\ud83d\udc64 \u9879\u76ee\u4f5c\u8005\uff1a s1lentf00thold\n\ud83d\udee0 \u5f00\u53d1\u8bed\u8a00\uff1a Python\n\u2b50 Star\u6570\u91cf\uff1a 0  |  \ud83c\udf74 Fork\u6570\u91cf\uff1a 0\n\ud83d\udcc5 \u66f4\u65b0\u65f6\u95f4\uff1a 2026-06-23 21:30:40\n\n\ud83d\udcdd \u9879\u76ee\u63cf\u8ff0\uff1a\n\u65e0\u63cf\u8ff0\n\n\ud83d\udd17 \u70b9\u51fb\u8bbf\u95ee\u9879\u76ee\u5730\u5740", "creation_timestamp": "2026-07-13T22:00:20.568935Z"}, {"uuid": "fd614534-b7b6-4298-901e-abc02a640081", "vulnerability_lookup_origin": "1a89b78e-f703-45f3-bb86-59eb712668bd", "author": "9f56dd64-161d-43a6-b9c3-555944290a09", "vulnerability": "CVE-2021-21425", "type": "seen", "source": "https://t.me/GithubRedTeam/88623", "content": "\ud83d\udea8 GitHub \u76d1\u63a7\u6d88\u606f\u63d0\u9192\n\n\ud83d\udea8 \u53d1\u73b0\u5173\u952e\u8bcd\uff1a #RCE #CVE\n\n\ud83d\udce6 \u9879\u76ee\u540d\u79f0\uff1a CVE-2021-21425\n\ud83d\udc64 \u9879\u76ee\u4f5c\u8005\uff1a d4ytox\n\ud83d\udee0 \u5f00\u53d1\u8bed\u8a00\uff1a Python\n\u2b50 Star\u6570\u91cf\uff1a 0  |  \ud83c\udf74 Fork\u6570\u91cf\uff1a 0\n\ud83d\udcc5 \u66f4\u65b0\u65f6\u95f4\uff1a 2026-06-13 11:18:58\n\n\ud83d\udcdd \u9879\u76ee\u63cf\u8ff0\uff1a\nCVE-2021-21425 - GravCMS 1.10.7 Unauthenticated RCE via Scheduler. Improved exploit with CLI args and auto base64 encoding.\n\n\ud83d\udd17 \u70b9\u51fb\u8bbf\u95ee\u9879\u76ee\u5730\u5740", "creation_timestamp": "2026-07-13T22:00:43.644753Z"}, {"uuid": "3e803a68-5874-40b8-93da-3a2486e226c5", "vulnerability_lookup_origin": "1a89b78e-f703-45f3-bb86-59eb712668bd", "author": "9f56dd64-161d-43a6-b9c3-555944290a09", "vulnerability": "CVE-2021-21425", "type": "seen", "source": "https://t.me/GithubRedTeam/88623", "content": "\ud83d\udea8 GitHub \u76d1\u63a7\u6d88\u606f\u63d0\u9192\n\n\ud83d\udea8 \u53d1\u73b0\u5173\u952e\u8bcd\uff1a #RCE #CVE\n\n\ud83d\udce6 \u9879\u76ee\u540d\u79f0\uff1a CVE-2021-21425\n\ud83d\udc64 \u9879\u76ee\u4f5c\u8005\uff1a d4ytox\n\ud83d\udee0 \u5f00\u53d1\u8bed\u8a00\uff1a Python\n\u2b50 Star\u6570\u91cf\uff1a 0  |  \ud83c\udf74 Fork\u6570\u91cf\uff1a 0\n\ud83d\udcc5 \u66f4\u65b0\u65f6\u95f4\uff1a 2026-06-13 11:18:58\n\n\ud83d\udcdd \u9879\u76ee\u63cf\u8ff0\uff1a\nCVE-2021-21425 - GravCMS 1.10.7 Unauthenticated RCE via Scheduler. Improved exploit with CLI args and auto base64 encoding.\n\n\ud83d\udd17 \u70b9\u51fb\u8bbf\u95ee\u9879\u76ee\u5730\u5740", "creation_timestamp": "2026-07-14T00:00:42.812145Z"}, {"uuid": "c10890c2-584a-4bb4-a252-f7058d5b8fcb", "vulnerability_lookup_origin": "1a89b78e-f703-45f3-bb86-59eb712668bd", "author": "9f56dd64-161d-43a6-b9c3-555944290a09", "vulnerability": "CVE-2021-21425", "type": "seen", "source": "https://t.me/GithubRedTeam/90322", "content": "\ud83d\udea8 GitHub \u76d1\u63a7\u6d88\u606f\u63d0\u9192\n\n\ud83d\udea8 \u53d1\u73b0\u5173\u952e\u8bcd\uff1a #RCE #CVE\n\n\ud83d\udce6 \u9879\u76ee\u540d\u79f0\uff1a CVE-2021-21425-RCE\n\ud83d\udc64 \u9879\u76ee\u4f5c\u8005\uff1a s1lentf00thold\n\ud83d\udee0 \u5f00\u53d1\u8bed\u8a00\uff1a Python\n\u2b50 Star\u6570\u91cf\uff1a 0  |  \ud83c\udf74 Fork\u6570\u91cf\uff1a 0\n\ud83d\udcc5 \u66f4\u65b0\u65f6\u95f4\uff1a 2026-06-23 21:30:40\n\n\ud83d\udcdd \u9879\u76ee\u63cf\u8ff0\uff1a\n\u65e0\u63cf\u8ff0\n\n\ud83d\udd17 \u70b9\u51fb\u8bbf\u95ee\u9879\u76ee\u5730\u5740", "creation_timestamp": "2026-07-14T00:00:36.572764Z"}, {"uuid": "cd2d9cd4-5ccf-41b4-9ea1-8cf362f763de", "vulnerability_lookup_origin": "1a89b78e-f703-45f3-bb86-59eb712668bd", "author": "9f56dd64-161d-43a6-b9c3-555944290a09", "vulnerability": "CVE-2021-21425", "type": "published-proof-of-concept", "source": "https://t.me/GithubRedTeam/88623", "content": "\ud83d\udea8 GitHub \u76d1\u63a7\u6d88\u606f\u63d0\u9192\n\n\ud83d\udea8 \u53d1\u73b0\u5173\u952e\u8bcd\uff1a #RCE #CVE\n\n\ud83d\udce6 \u9879\u76ee\u540d\u79f0\uff1a CVE-2021-21425\n\ud83d\udc64 \u9879\u76ee\u4f5c\u8005\uff1a d4ytox\n\ud83d\udee0 \u5f00\u53d1\u8bed\u8a00\uff1a Python\n\u2b50 Star\u6570\u91cf\uff1a 0  |  \ud83c\udf74 Fork\u6570\u91cf\uff1a 0\n\ud83d\udcc5 \u66f4\u65b0\u65f6\u95f4\uff1a 2026-06-13 11:18:58\n\n\ud83d\udcdd \u9879\u76ee\u63cf\u8ff0\uff1a\nCVE-2021-21425 - GravCMS 1.10.7 Unauthenticated RCE via Scheduler. Improved exploit with CLI args and auto base64 encoding.\n\n\ud83d\udd17 \u70b9\u51fb\u8bbf\u95ee\u9879\u76ee\u5730\u5740", "creation_timestamp": "2026-07-15T00:00:05.586323Z"}, {"uuid": "8190d8b3-8e75-455c-83ad-30efbbbf902b", "vulnerability_lookup_origin": "1a89b78e-f703-45f3-bb86-59eb712668bd", "author": "9f56dd64-161d-43a6-b9c3-555944290a09", "vulnerability": "CVE-2021-21425", "type": "published-proof-of-concept", "source": "https://t.me/GithubRedTeam/90322", "content": "\ud83d\udea8 GitHub \u76d1\u63a7\u6d88\u606f\u63d0\u9192\n\n\ud83d\udea8 \u53d1\u73b0\u5173\u952e\u8bcd\uff1a #RCE #CVE\n\n\ud83d\udce6 \u9879\u76ee\u540d\u79f0\uff1a CVE-2021-21425-RCE\n\ud83d\udc64 \u9879\u76ee\u4f5c\u8005\uff1a s1lentf00thold\n\ud83d\udee0 \u5f00\u53d1\u8bed\u8a00\uff1a Python\n\u2b50 Star\u6570\u91cf\uff1a 0  |  \ud83c\udf74 Fork\u6570\u91cf\uff1a 0\n\ud83d\udcc5 \u66f4\u65b0\u65f6\u95f4\uff1a 2026-06-23 21:30:40\n\n\ud83d\udcdd \u9879\u76ee\u63cf\u8ff0\uff1a\n\u65e0\u63cf\u8ff0\n\n\ud83d\udd17 \u70b9\u51fb\u8bbf\u95ee\u9879\u76ee\u5730\u5740", "creation_timestamp": "2026-07-15T00:00:20.007357Z"}, {"uuid": "b85bebb9-ca3f-4e3f-8c02-634072865f0a", "vulnerability_lookup_origin": "1a89b78e-f703-45f3-bb86-59eb712668bd", "author": "9f56dd64-161d-43a6-b9c3-555944290a09", "vulnerability": "CVE-2021-21423", "type": "published-proof-of-concept", "source": "Telegram/I58s2uZmAQqrY0Sc2S_LCSg9yo3yGDFMC-JsGWGbcm0eZ9o", "content": "", "creation_timestamp": "2026-09-03T00:00:43.252221Z"}, {"uuid": "844720df-2030-4f3d-a9c9-fd5b49627133", "vulnerability_lookup_origin": "1a89b78e-f703-45f3-bb86-59eb712668bd", "author": "9f56dd64-161d-43a6-b9c3-555944290a09", "vulnerability": "CVE-2021-21425", "type": "seen", "source": "https://github.com/rapid7/metasploit-framework/blob/master/modules/exploits/linux/http/gravcms_exec.rb", "content": "{\"aliases\": [], \"arch\": \"php\", \"author\": [\"Mehmet Ince \"], \"autofilter_ports\": [80, 8080, 443, 8000, 8888, 8880, 8008, 3000, 8443], \"autofilter_services\": [\"http\", \"https\"], \"check\": true, \"default_credential\": false, \"description\": \"This module exploits arbitrary config write/update vulnerability to achieve remote code execution.\\n          Unauthenticated users can execute a terminal command under the context of the web server user.\\n\\n          Grav Admin Plugin is an HTML user interface that provides a way to configure Grav and create and modify pages.\\n          In versions 1.10.7 and earlier, an unauthenticated user can execute some methods of administrator controller without\\n          needing any credentials. Particular method execution will result in arbitrary YAML file creation or content change of\\n          existing YAML files on the system. Successfully exploitation of that vulnerability results in configuration changes,\\n          such as general site information change, custom scheduler job definition, etc. Due to the nature of the vulnerability,\\n          an adversary can change some part of the webpage, or hijack an administrator account, or execute operating system command\\n          under the context of the web-server user.\", \"disclosure_date\": \"2021-03-29\", \"fullname\": \"exploit/linux/http/gravcms_exec\", \"is_install_path\": true, \"mod_time\": \"2026-04-22 11:54:55 +0000\", \"name\": \"GravCMS Remote Command Execution\", \"needs_cleanup\": null, \"notes\": {\"Reliability\": [\"repeatable-session\"], \"SideEffects\": [\"config-changes\"], \"Stability\": [\"crash-safe\"]}, \"path\": \"/modules/exploits/linux/http/gravcms_exec.rb\", \"platform\": \"PHP\", \"post_auth\": false, \"rank\": 300, \"ref_name\": \"linux/http/gravcms_exec\", \"references\": [\"CVE-2021-21425\", \"URL-https://pentest.blog/unexpected-journey-7-gravcms-unauthenticated-arbitrary-yaml-write-update-leads-to-code-execution/\"], \"rport\": 80, \"session_types\": false, \"targets\": [\"Automatic\"], \"type\": \"exploit\"}", "creation_timestamp": "2026-09-08T06:48:37.164432Z"}]}