{"id":"CVE-2025-10493","state":"PUBLISHED","title":"Chained Quiz <= 1.3.5 - Unauthenticated Insecure Direct Object Reference via Cookie","description":"The Chained Quiz plugin for WordPress is vulnerable to Insecure Direct Object Reference in version 1.3.4 and below via the quiz submission and completion mechanisms due to missing validation on a user controlled key. This makes it possible for unauthenticated attackers to hijack and modify other users' quiz attempts by manipulating the chained_completion_id cookie value, allowing them to alter quiz answers, scores, and results of any user. The vulnerability was partially patched in versions 1.3.4 and 1.3.5.","publishedAt":"2025-09-18T06:49:45.112Z","updatedAt":"2026-04-08T16:40:38.202Z","severity":{"score":5.3,"label":"Medium","version":"3.1","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N","source":"Wordfence"},"assigner":"Wordfence","products":["prasunsen Chained Quiz"],"affected":[{"vendor":"prasunsen","product":"Chained Quiz","defaultStatus":"unaffected","versions":[{"version":"0","status":"affected","lessThanOrEqual":"1.3.5","versionType":"semver"}]}],"references":["https://www.wordfence.com/threat-intel/vulnerabilities/id/1d8f6965-1fe3-4f24-bd6b-9026e91bc5db?source=cve","https://plugins.trac.wordpress.org/browser/chained-quiz/tags/1.3.3/controllers/quizzes.php","https://plugins.trac.wordpress.org/browser/chained-quiz/tags/1.3.3/models/quiz.php","https://plugins.trac.wordpress.org/changeset/3362561/","https://plugins.trac.wordpress.org/changeset/3362701/","https://plugins.trac.wordpress.org/changeset/3362966/"],"weaknesses":["CWE-639"],"ingestedAt":"2026-10-29T20:08:20.985Z","source":{"repository":"CVEProject/cvelistV5","path":"cves/2025/10xxx/CVE-2025-10493.json","commit":"556c9d3a8cd17e218bb8e452ba7cd619a384ff47"},"raw":{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2025-10493","state":"PUBLISHED","datePublished":"2025-09-18T06:49:45.112Z","dateUpdated":"2026-04-08T16:40:38.202Z","assignerShortName":"Wordfence","assignerOrgId":"b15e7b5b-3da4-40ae-a43c-f7aa60e62599","dateReserved":"2025-09-15T17:13:39.985Z"},"containers":{"cna":{"title":"Chained Quiz <= 1.3.5 - Unauthenticated Insecure Direct Object Reference via Cookie","descriptions":[{"lang":"en","value":"The Chained Quiz plugin for WordPress is vulnerable to Insecure Direct Object Reference in version 1.3.4 and below via the quiz submission and completion mechanisms due to missing validation on a user controlled key. This makes it possible for unauthenticated attackers to hijack and modify other users' quiz attempts by manipulating the chained_completion_id cookie value, allowing them to alter quiz answers, scores, and results of any user. The vulnerability was partially patched in versions 1.3.4 and 1.3.5."}],"affected":[{"vendor":"prasunsen","product":"Chained Quiz","defaultStatus":"unaffected","versions":[{"version":"0","status":"affected","lessThanOrEqual":"1.3.5","versionType":"semver"}]}],"references":[{"url":"https://www.wordfence.com/threat-intel/vulnerabilities/id/1d8f6965-1fe3-4f24-bd6b-9026e91bc5db?source=cve"},{"url":"https://plugins.trac.wordpress.org/browser/chained-quiz/tags/1.3.3/controllers/quizzes.php"},{"url":"https://plugins.trac.wordpress.org/browser/chained-quiz/tags/1.3.3/models/quiz.php"},{"url":"https://plugins.trac.wordpress.org/changeset/3362561/"},{"url":"https://plugins.trac.wordpress.org/changeset/3362701/"},{"url":"https://plugins.trac.wordpress.org/changeset/3362966/"}],"metrics":[{"cvssV3_1":{"version":"3.1","vectorString":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N","baseScore":5.3,"baseSeverity":"MEDIUM"}}],"problemTypes":[{"descriptions":[{"cweId":"CWE-639","lang":"en","description":"CWE-639 Authorization Bypass Through User-Controlled Key","type":"CWE"}]}],"providerMetadata":{"shortName":"Wordfence","orgId":"b15e7b5b-3da4-40ae-a43c-f7aa60e62599","dateUpdated":"2026-04-08T16:40:38.202Z"},"credits":[{"lang":"en","type":"finder","value":"Karuppiah Sabari Kumar"}],"timeline":[{"time":"2025-09-16T12:25:33.000Z","lang":"en","value":"Vendor Notified"},{"time":"2025-09-17T00:00:00.000Z","lang":"en","value":"Disclosed"}]},"adp":[{"title":"CISA ADP Vulnrichment","metrics":[{"other":{"type":"ssvc","content":{"timestamp":"2025-09-18T13:54:56.121510Z","id":"CVE-2025-10493","options":[{"Exploitation":"none"},{"Automatable":"yes"},{"Technical Impact":"partial"}],"role":"CISA Coordinator","version":"2.0.3"}}}],"providerMetadata":{"shortName":"CISA-ADP","orgId":"134c704f-9b21-4f2e-91b3-4a467353bcc0","dateUpdated":"2025-09-18T14:03:36.463Z"}}]}}}