{"id":"CVE-2018-17128","url":"https://www.cyber-defence.io/tools/cve/CVE-2018-17128","generatedAt":"2026-10-28T19:05:48.219Z","title":"A Persistent XSS issue was discovered in the Visual Editor in MyBB before 1.8.19 via a Video MyCode.","description":"A Persistent XSS issue was discovered in the Visual Editor in MyBB before 1.8.19 via a Video MyCode.","published":"2018-09-17T04:29:01.000Z","lastModified":"2026-06-17T01:45:24.000Z","status":"Modified","sourceIdentifier":"cve@mitre.org","cvss":{"version":"3.0","score":5.4,"severity":"MEDIUM","vector":"CVSS:3.0/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N"},"cwe":["CWE-79"],"affected":["mybb/mybb"],"epss":{"score":0.74752,"percentile":0.99501,"date":"2026-10-27","history":[{"date":"2026-09-21","score":0.48817,"percentile":0.98856},{"date":"2026-09-22","score":0.74752,"percentile":0.9948}]},"kev":{"listed":false},"exploits":{"count":1,"verified":false,"firstPublished":"2018-09-24","source":"Exploit-DB (https://gitlab.com/exploit-database/exploitdb)","entries":[{"edbId":45449,"kind":"exploit","title":"MyBB Visual Editor 1.8.18 - Cross-Site Scripting","url":"https://www.exploit-db.com/exploits/45449","sourceUrl":"https://gitlab.com/exploit-database/exploitdb/-/blob/main/exploits/php/webapps/45449.txt","file":"exploits/php/webapps/45449.txt","published":"2018-09-24","added":"2018-09-24","updated":"2018-09-24","author":"Numan OZDEMIR","type":"webapps","platform":"php","port":80,"verified":false,"codes":["CVE-2018-17128"],"tags":"Cross-Site Scripting (XSS)","aliases":null,"applicationUrl":null,"screenshotUrl":null,"referenceUrl":null}]},"verdict":{"level":"urgent","text":"EPSS puts the probability of exploitation in the next 30 days at 74.8%, higher than 100% of all known CVEs. Patch or mitigate before the next change window."},"changes":[{"kind":"epss","label":"EPSS jump","at":"2026-09-22T00:00:00.000Z","detail":{"to":0.74752,"from":0.48817,"percentile":0.9948},"summary":"EPSS moved from 48.8% to 74.8% probability of exploitation in the next thirty days."},{"kind":"epss","label":"EPSS jump","at":"2026-09-21T00:00:00.000Z","detail":{"to":0.48817,"from":0.74752,"percentile":0.98856},"summary":"EPSS moved from 74.8% to 48.8% probability of exploitation in the next thirty days."}],"references":[{"url":"https://blog.mybb.com/2018/09/11/mybb-1-8-19-released-security-maintenance-release/","tags":["Release Notes","Vendor Advisory"],"source":"cve@mitre.org"},{"url":"https://www.exploit-db.com/exploits/45449/","tags":["Exploit","Third Party Advisory","VDB Entry"],"source":"cve@mitre.org"},{"url":"https://blog.mybb.com/2018/09/11/mybb-1-8-19-released-security-maintenance-release/","tags":["Release Notes","Vendor Advisory"],"source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"https://www.exploit-db.com/exploits/45449/","tags":["Exploit","Third Party Advisory","VDB Entry"],"source":"af854a3a-2127-422b-91ae-364da2661108"}],"sources":{"nvd":"https://nvd.nist.gov/vuln/detail/CVE-2018-17128","epss":"https://www.first.org/epss/","kev":"https://www.cisa.gov/known-exploited-vulnerabilities-catalog","exploitdb":"https://www.exploit-db.com/"},"licence":"CC BY 4.0 — link back to the CVE Explorer if you publish the results; upstream data remains subject to its own terms."}