CVE Explorer
CVE-2025-64528
Discourse is an open source discussion platform. Prior to versions 3.5.3, 2025.11.1, and 2025.12.0, an attacker who knows part of a username can find the user and their full name via UI or API, even when `enable_names` is disabled. Versions 3.5.3, 2025.11.1, and 2025.12.0 contain a fix.
Known exploited
Not asserted
Disputed
No
Stale source
No
Conflicts
0
Affected products and versions
1 source assertion{"product":"discourse","vendor":"discourse","versions":[{"status":"affected","version":"< 3.5.3"},{"status":"affected","version":">= 2025.11.0-latest, < 2025.11.1"},{"status":"affected","version":">= 2025.12.0-latest, < 2025.12.0"}]}
- cve_program_cvelist_v5affectedurn:baitaphish:normalized-source-record:v2:69988233ac1243b46270480d26e3852912fb21c230238bc7173c0021dd0d16e3 · sha256:d009f5d1d48da075… · /containers/cna/affected/0
Provider-owned CVSS observations
1 source assertion{"metric":{"attackComplexity":"LOW","attackRequirements":"PRESENT","attackVector":"NETWORK","baseScore":6.3,"baseSeverity":"MEDIUM","privilegesRequired":"NONE","subAvailabilityImpact":"NONE","subConfidentialityImpact":"LOW","subIntegrityImpact":"NONE","userInteraction":"NONE","vectorString":"CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:L/VI:N/VA:N/SC:L/SI:N/SA:N","version":"4.0","vulnAvailabilityImpact":"NONE","vulnConfidentialityImpact":"LOW","vulnIntegrityImpact":"NONE"},"metric_type":"cvssV4_0"}
- cve_program_cvelist_v5cvssurn:baitaphish:normalized-source-record:v2:69988233ac1243b46270480d26e3852912fb21c230238bc7173c0021dd0d16e3 · sha256:d009f5d1d48da075… · /containers/cna/metrics/0/cvssV4_0
CWE assertions
1 source assertion{"cweId":"CWE-202","description":"CWE-202: Exposure of Sensitive Information Through Data Queries","lang":"en","type":"CWE"}
- cve_program_cvelist_v5cweurn:baitaphish:normalized-source-record:v2:69988233ac1243b46270480d26e3852912fb21c230238bc7173c0021dd0d16e3 · sha256:d009f5d1d48da075… · /containers/cna/problemTypes/0/descriptions/0
Source references
4 source assertions{"name":"https://github.com/discourse/discourse/commit/1cb45b8b287597085e3514596ffb1d9b41938f81","tags":["x_refsource_MISC"],"url":"https://github.com/discourse/discourse/commit/1cb45b8b287597085e3514596ffb1d9b41938f81"}
- cve_program_cvelist_v5referenceurn:baitaphish:normalized-source-record:v2:69988233ac1243b46270480d26e3852912fb21c230238bc7173c0021dd0d16e3 · sha256:d009f5d1d48da075… · /containers/cna/references/1
{"name":"https://github.com/discourse/discourse/commit/6192f55629624925595dae14364fd86cac0f09df","tags":["x_refsource_MISC"],"url":"https://github.com/discourse/discourse/commit/6192f55629624925595dae14364fd86cac0f09df"}
- cve_program_cvelist_v5referenceurn:baitaphish:normalized-source-record:v2:69988233ac1243b46270480d26e3852912fb21c230238bc7173c0021dd0d16e3 · sha256:d009f5d1d48da075… · /containers/cna/references/2
{"name":"https://github.com/discourse/discourse/commit/e936a523b5900a9d866d23ea3da904ba12bb0fb2","tags":["x_refsource_MISC"],"url":"https://github.com/discourse/discourse/commit/e936a523b5900a9d866d23ea3da904ba12bb0fb2"}
- cve_program_cvelist_v5referenceurn:baitaphish:normalized-source-record:v2:69988233ac1243b46270480d26e3852912fb21c230238bc7173c0021dd0d16e3 · sha256:d009f5d1d48da075… · /containers/cna/references/3
{"name":"https://github.com/discourse/discourse/security/advisories/GHSA-c59w-jwx7-34v4","tags":["x_refsource_CONFIRM"],"url":"https://github.com/discourse/discourse/security/advisories/GHSA-c59w-jwx7-34v4"}
- cve_program_cvelist_v5referenceurn:baitaphish:normalized-source-record:v2:69988233ac1243b46270480d26e3852912fb21c230238bc7173c0021dd0d16e3 · sha256:d009f5d1d48da075… · /containers/cna/references/0
Attribution and limitations
- CVE Program CVEList V5: Reproduce the MITRE copyright designation and CVE license in copies. Source →
Provider severity values are preserved separately. Baitaphish does not convert them into a risk rating, infer affected products, or treat EPSS as observed exploitation.