{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2026-53674","assignerOrgId":"83251b91-4cc7-4094-a5c7-464a1b83ea10","state":"PUBLISHED","assignerShortName":"VulnCheck","dateReserved":"2026-06-09T23:14:36.036Z","datePublished":"2026-06-09T23:44:21.471Z","dateUpdated":"2026-06-10T16:32:21.733Z"},"containers":{"cna":{"providerMetadata":{"orgId":"83251b91-4cc7-4094-a5c7-464a1b83ea10","shortName":"VulnCheck","dateUpdated":"2026-06-09T23:44:21.471Z"},"datePublic":"2026-06-09T00:00:00.000Z","title":"BuddyPress 14.4.0 REGEXP Injection via @Mention Username Resolution","descriptions":[{"lang":"en","value":"BuddyPress 14.4.0 contains a regular expression injection vulnerability in the activity mention resolver that, when username compatibility mode is enabled, allows attackers to manipulate a REGEXP database clause by crafting mention names containing regex metacharacters. Attackers can submit @mentions whose metacharacters pass through esc_sql unescaped and are inserted into an unprepared REGEXP query against the users table, enabling boolean-based inference of usernames and denial of service through catastrophic backtracking."}],"problemTypes":[{"descriptions":[{"lang":"en","description":"Improper Neutralization of Special Elements in Data Query Logic","cweId":"CWE-943","type":"CWE"}]}],"affected":[{"vendor":"BuddyPress","product":"BuddyPress","versions":[{"version":"0","status":"affected","versionType":"semver","lessThanOrEqual":"14.4.0"}]}],"cpeApplicability":[{"nodes":[{"operator":"OR","negate":false,"cpeMatch":[{"vulnerable":true,"criteria":"cpe:2.3:a:buddypress:buddypress:*:*:*:*:*:wordpress:*:*","versionEndIncluding":"14.4.0"}]}]}],"metrics":[{"cvssV4_0":{"Automatable":"NOT_DEFINED","Recovery":"NOT_DEFINED","Safety":"NOT_DEFINED","attackComplexity":"LOW","attackRequirements":"NONE","attackVector":"NETWORK","baseScore":7.1,"baseSeverity":"HIGH","exploitMaturity":"NOT_DEFINED","privilegesRequired":"LOW","providerUrgency":"NOT_DEFINED","subAvailabilityImpact":"NONE","subConfidentialityImpact":"NONE","subIntegrityImpact":"NONE","userInteraction":"NONE","valueDensity":"NOT_DEFINED","vectorString":"CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:L/VI:N/VA:H/SC:N/SI:N/SA:N","version":"4.0","vulnAvailabilityImpact":"HIGH","vulnConfidentialityImpact":"LOW","vulnIntegrityImpact":"NONE","vulnerabilityResponseEffort":"NOT_DEFINED"},"format":"CVSS"},{"cvssV3_1":{"attackComplexity":"LOW","attackVector":"NETWORK","availabilityImpact":"HIGH","baseScore":7.1,"baseSeverity":"HIGH","confidentialityImpact":"LOW","integrityImpact":"NONE","privilegesRequired":"LOW","scope":"UNCHANGED","userInteraction":"NONE","vectorString":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:H","version":"3.1"},"format":"CVSS"}],"references":[{"url":"https://buddypress.org/","tags":["product"]},{"url":"https://wordpress.org/plugins/buddypress/","tags":["product"]},{"name":"VulnCheck Advisory: BuddyPress 14.4.0 REGEXP Injection via @Mention Username Resolution","tags":["third-party-advisory"],"url":"https://www.vulncheck.com/advisories/buddypress-regexp-injection-via-mention-username-resolution"}],"credits":[{"lang":"en","value":"Scott Moore - VulnCheck","type":"finder"}],"x_generator":{"engine":"scooter"}},"adp":[{"metrics":[{"other":{"type":"ssvc","content":{"timestamp":"2026-06-10T16:03:04.734924Z","id":"CVE-2026-53674","options":[{"Exploitation":"none"},{"Automatable":"no"},{"Technical Impact":"partial"}],"role":"CISA Coordinator","version":"2.0.3"}}}],"title":"CISA ADP Vulnrichment","providerMetadata":{"orgId":"134c704f-9b21-4f2e-91b3-4a467353bcc0","shortName":"CISA-ADP","dateUpdated":"2026-06-10T16:32:21.733Z"}}]}}