{"id":"CVE-2018-25309","state":"PUBLISHED","title":"MyBB Recent threads 17.0 Persistent Cross-Site Scripting","description":"MyBB Recent threads 17.0 contains a persistent cross-site scripting vulnerability that allows attackers to inject malicious scripts by creating threads with crafted subject lines. Attackers can create threads with script tags in the subject parameter to execute arbitrary JavaScript in the browsers of all users viewing the index page.","publishedAt":"2026-04-29T19:24:39.993Z","updatedAt":"2026-05-24T01:36:17.351Z","severity":{"score":5.1,"label":"Medium","version":"4.0","vector":"CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:P/VC:N/VI:N/VA:N/SC:L/SI:L/SA:N","source":"VulnCheck"},"assigner":"VulnCheck","products":["mybb MyBB Recent threads"],"affected":[{"vendor":"mybb","product":"MyBB Recent threads","versions":[{"version":"17.0","status":"affected"}]}],"references":["https://www.exploit-db.com/exploits/44420","https://community.mybb.com/mods.php?action=view&pid=191","https://www.vulncheck.com/advisories/mybb-recent-threads-persistent-cross-site-scripting"],"weaknesses":["CWE-79"],"ingestedAt":"2026-10-29T19:44:44.295Z","source":{"repository":"CVEProject/cvelistV5","path":"cves/2018/25xxx/CVE-2018-25309.json","commit":"556c9d3a8cd17e218bb8e452ba7cd619a384ff47"},"raw":{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2018-25309","state":"PUBLISHED","datePublished":"2026-04-29T19:24:39.993Z","dateUpdated":"2026-05-24T01:36:17.351Z","assignerShortName":"VulnCheck","assignerOrgId":"83251b91-4cc7-4094-a5c7-464a1b83ea10","dateReserved":"2026-04-29T12:18:35.172Z"},"containers":{"cna":{"title":"MyBB Recent threads 17.0 Persistent Cross-Site Scripting","descriptions":[{"lang":"en","value":"MyBB Recent threads 17.0 contains a persistent cross-site scripting vulnerability that allows attackers to inject malicious scripts by creating threads with crafted subject lines. Attackers can create threads with script tags in the subject parameter to execute arbitrary JavaScript in the browsers of all users viewing the index page."}],"affected":[{"vendor":"mybb","product":"MyBB Recent threads","versions":[{"version":"17.0","status":"affected"}]}],"references":[{"url":"https://www.exploit-db.com/exploits/44420","name":"ExploitDB-44420","tags":["exploit"]},{"url":"https://community.mybb.com/mods.php?action=view&pid=191","name":"Product Reference","tags":["product"]},{"url":"https://www.vulncheck.com/advisories/mybb-recent-threads-persistent-cross-site-scripting","name":"VulnCheck Advisory: MyBB Recent threads 17.0 Persistent Cross-Site Scripting","tags":["third-party-advisory"]}],"metrics":[{"cvssV4_0":{"Automatable":"NOT_DEFINED","Recovery":"NOT_DEFINED","Safety":"NOT_DEFINED","attackComplexity":"LOW","attackRequirements":"NONE","attackVector":"NETWORK","baseScore":5.1,"baseSeverity":"MEDIUM","exploitMaturity":"NOT_DEFINED","privilegesRequired":"LOW","providerUrgency":"NOT_DEFINED","subAvailabilityImpact":"NONE","subConfidentialityImpact":"LOW","subIntegrityImpact":"LOW","userInteraction":"PASSIVE","valueDensity":"NOT_DEFINED","vectorString":"CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:P/VC:N/VI:N/VA:N/SC:L/SI:L/SA:N","version":"4.0","vulnAvailabilityImpact":"NONE","vulnConfidentialityImpact":"NONE","vulnIntegrityImpact":"NONE","vulnerabilityResponseEffort":"NOT_DEFINED"},"format":"CVSS"},{"cvssV3_1":{"attackComplexity":"LOW","attackVector":"NETWORK","availabilityImpact":"NONE","baseScore":7.2,"baseSeverity":"HIGH","confidentialityImpact":"LOW","integrityImpact":"LOW","privilegesRequired":"NONE","scope":"CHANGED","userInteraction":"NONE","vectorString":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:L/I:L/A:N","version":"3.1"},"format":"CVSS"}],"problemTypes":[{"descriptions":[{"cweId":"CWE-79","lang":"en","description":"Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')","type":"CWE"}]}],"providerMetadata":{"shortName":"VulnCheck","orgId":"83251b91-4cc7-4094-a5c7-464a1b83ea10","dateUpdated":"2026-05-24T01:36:17.351Z"},"cpeApplicability":[{"nodes":[{"operator":"OR","negate":false,"cpeMatch":[{"vulnerable":true,"criteria":"cpe:2.3:a:mybb:mybb:17.0:*:*:*:*:*:*:*"}]}]}],"credits":[{"lang":"en","value":"Perileos","type":"finder"}],"x_generator":{"engine":"vulncheck"},"datePublic":"2018-04-09T00:00:00.000Z"},"adp":[{"title":"CISA ADP Vulnrichment","metrics":[{"other":{"type":"ssvc","content":{"timestamp":"2026-04-30T13:07:48.549485Z","id":"CVE-2018-25309","options":[{"Exploitation":"poc"},{"Automatable":"yes"},{"Technical Impact":"partial"}],"role":"CISA Coordinator","version":"2.0.3"}}}],"providerMetadata":{"shortName":"CISA-ADP","orgId":"134c704f-9b21-4f2e-91b3-4a467353bcc0","dateUpdated":"2026-04-30T13:07:56.870Z"}}]}}}