{"id":"CVE-2026-68531","state":"PUBLISHED","title":"Concrete CMS below 9.5.3 is vulnerable to Authenticated Denial of Service via Unescaped SQL LIKE Wildcards in Keyword Search","description":"Concrete CMS 9 before 9.5.3 did not escape SQL LIKE wildcard characters in the keyword search filters used by the file manager, file folders, and page list, allowing an authenticated user with editor-level or higher privileges to submit a crafted search containing many single-character wildcards. Because the keyword input was placed into the LIKE clause without neutralizing its wildcard metacharacters, a short request could force the database to evaluate every row and perform a full-table scan, and repeated or wildcard-dense searches could sustain elevated database CPU and I/O, degrading responsiveness for other users on large installations. The Concrete CMS security team gave this vulnerability a CVSS v4.0 score of 2.1 with vector CVSS:4.0/AV:N/AC:L/AT:P/PR:H/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N. Thanks noivan for reporting.","publishedAt":"2026-09-15T19:03:38.816Z","updatedAt":"2026-09-15T19:38:59.236Z","severity":{"score":2.1,"label":"Low","version":"4.0","vector":"CVSS:4.0/AV:N/AC:L/AT:P/PR:H/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N","source":"ConcreteCMS"},"assigner":"ConcreteCMS","products":["Concrete CMS Concrete CMS"],"affected":[{"vendor":"Concrete CMS","product":"Concrete CMS","defaultStatus":"unaffected","versions":[{"version":"9.0.0","status":"affected","lessThanOrEqual":"9.5.2","versionType":"git"}],"collectionURL":"https://github.com/concretecms/concretecms","repo":"https://github.com/concretecms/concretecms"}],"references":["https://documentation.concretecms.org/developers/introduction/version-history/953-release-notes"],"weaknesses":["CWE-405"],"ingestedAt":"2026-10-29T20:12:49.727Z","source":{"repository":"CVEProject/cvelistV5","path":"cves/2026/68xxx/CVE-2026-68531.json","commit":"556c9d3a8cd17e218bb8e452ba7cd619a384ff47"},"raw":{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2026-68531","state":"PUBLISHED","datePublished":"2026-09-15T19:03:38.816Z","dateUpdated":"2026-09-15T19:38:59.236Z","assignerShortName":"ConcreteCMS","assignerOrgId":"ff5b8ace-8b95-4078-9743-eac1ca5451de","dateReserved":"2026-07-30T18:04:50.763Z"},"containers":{"cna":{"title":"Concrete CMS below 9.5.3 is vulnerable to Authenticated Denial of Service via Unescaped SQL LIKE Wildcards in Keyword Search","descriptions":[{"lang":"en","value":"Concrete CMS 9 before 9.5.3 did not escape SQL LIKE wildcard characters in the keyword search filters used by the file manager, file folders, and page list, allowing an authenticated user with editor-level or higher privileges to submit a crafted search containing many single-character wildcards. Because the keyword input was placed into the LIKE clause without neutralizing its wildcard metacharacters, a short request could force the database to evaluate every row and perform a full-table scan, and repeated or wildcard-dense searches could sustain elevated database CPU and I/O, degrading responsiveness for other users on large installations. The Concrete CMS security team gave this vulnerability a CVSS v4.0 score of 2.1 with vector CVSS:4.0/AV:N/AC:L/AT:P/PR:H/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N. Thanks noivan for reporting."}],"affected":[{"vendor":"Concrete CMS","product":"Concrete CMS","defaultStatus":"unaffected","versions":[{"version":"9.0.0","status":"affected","lessThanOrEqual":"9.5.2","versionType":"git"}],"collectionURL":"https://github.com/concretecms/concretecms","repo":"https://github.com/concretecms/concretecms"}],"references":[{"url":"https://documentation.concretecms.org/developers/introduction/version-history/953-release-notes","tags":["release-notes"]}],"metrics":[{"format":"CVSS","scenarios":[{"lang":"en","value":"GENERAL"}],"cvssV4_0":{"attackVector":"NETWORK","attackComplexity":"LOW","attackRequirements":"PRESENT","privilegesRequired":"HIGH","userInteraction":"NONE","vulnConfidentialityImpact":"NONE","subConfidentialityImpact":"NONE","vulnIntegrityImpact":"NONE","subIntegrityImpact":"NONE","vulnAvailabilityImpact":"LOW","subAvailabilityImpact":"NONE","exploitMaturity":"NOT_DEFINED","Safety":"NOT_DEFINED","Automatable":"NOT_DEFINED","Recovery":"NOT_DEFINED","valueDensity":"NOT_DEFINED","vulnerabilityResponseEffort":"NOT_DEFINED","providerUrgency":"NOT_DEFINED","version":"4.0","baseSeverity":"LOW","baseScore":2.1,"vectorString":"CVSS:4.0/AV:N/AC:L/AT:P/PR:H/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N"}}],"problemTypes":[{"descriptions":[{"cweId":"CWE-405","lang":"en","description":"CWE-405 Asymmetric Resource Consumption (Amplification)","type":"CWE"}]}],"providerMetadata":{"shortName":"ConcreteCMS","orgId":"ff5b8ace-8b95-4078-9743-eac1ca5451de","dateUpdated":"2026-09-15T19:03:38.816Z"},"impacts":[{"capecId":"CAPEC-277","descriptions":[{"lang":"en","value":"CAPEC-277 Data Interchange Protocol Manipulation"}]}],"credits":[{"lang":"en","value":"noivan","type":"finder"}],"source":{"defect":["HackerOne"],"advisory":"3734049","discovery":"EXTERNAL"},"x_generator":{"engine":"Vulnogram 1.0.5"}},"adp":[{"title":"CISA ADP Vulnrichment","metrics":[{"other":{"type":"ssvc","content":{"timestamp":"2026-09-15T19:38:43.046452Z","id":"CVE-2026-68531","options":[{"Exploitation":"none"},{"Automatable":"no"},{"Technical Impact":"partial"}],"role":"CISA Coordinator","version":"2.0.3"}}}],"providerMetadata":{"shortName":"CISA-ADP","orgId":"134c704f-9b21-4f2e-91b3-4a467353bcc0","dateUpdated":"2026-09-15T19:38:59.236Z"}}]}}}