CVE Explorer
CVE-2025-8571
Concrete CMS 9 to 9.4.2 and versions below 8.5.21 are vulnerable to Reflected Cross-Site Scripting (XSS) in the Conversation Messages Dashboard Page. Unsanitized input could cause theft of session cookies or tokens, defacement of web content, redirection to malicious sites, and (if victim is an admin), the execution of unauthorized actions. The Concrete CMS security team gave this vulnerability a CVSS v.4.0 score of 4.8 with vector CVSS:4.0/AV:N/AC:L/AT:N/PR:H/UI:P/VC:L/VI:L/VA:N/SC:N/SI:N/SA:N.
Known exploited
Not asserted
Disputed
No
Stale source
No
Conflicts
0
Affected products and versions
1 source assertion{"defaultStatus":"unaffected","product":"Concrete CMS","repo":"https://github.com/concretecms/concretecms","vendor":"Concrete CMS","versions":[{"lessThan":"9.4.3","status":"affected","version":"9.0.0","versionType":"patch"},{"lessThan":"8.5.21","status":"affected","version":"5.6","versionType":"patch"}]}
- cve_program_cvelist_v5affectedurn:baitaphish:normalized-source-record:v2:b685f58beadf19d550ae8f37cd6538524074d8597ad29cf641c077ec47e9c9d9 · sha256:7d75664ee2ead7f2… · /containers/cna/affected/0
Provider-owned CVSS observations
1 source assertion{"metric":{"Automatable":"NOT_DEFINED","Recovery":"NOT_DEFINED","Safety":"NOT_DEFINED","attackComplexity":"LOW","attackRequirements":"NONE","attackVector":"NETWORK","baseScore":4.8,"baseSeverity":"MEDIUM","privilegesRequired":"HIGH","providerUrgency":"NOT_DEFINED","subAvailabilityImpact":"NONE","subConfidentialityImpact":"NONE","subIntegrityImpact":"NONE","userInteraction":"PASSIVE","valueDensity":"NOT_DEFINED","vectorString":"CVSS:4.0/AV:N/AC:L/AT:N/PR:H/UI:P/VC:L/VI:L/VA:N/SC:N/SI:N/SA:N","version":"4.0","vulnAvailabilityImpact":"NONE","vulnConfidentialityImpact":"LOW","vulnIntegrityImpact":…
- cve_program_cvelist_v5cvssurn:baitaphish:normalized-source-record:v2:b685f58beadf19d550ae8f37cd6538524074d8597ad29cf641c077ec47e9c9d9 · sha256:7d75664ee2ead7f2… · /containers/cna/metrics/0/cvssV4_0
CWE assertions
1 source assertion{"cweId":"CWE-20","description":"CWE-20 Improper Input Validation","lang":"en","type":"CWE"}
- cve_program_cvelist_v5cweurn:baitaphish:normalized-source-record:v2:b685f58beadf19d550ae8f37cd6538524074d8597ad29cf641c077ec47e9c9d9 · sha256:7d75664ee2ead7f2… · /containers/cna/problemTypes/0/descriptions/0
Source references
3 source assertions{"url":"https://documentation.concretecms.org/9-x/developers/introduction/version-history/943-release-notes"}
- cve_program_cvelist_v5referenceurn:baitaphish:normalized-source-record:v2:b685f58beadf19d550ae8f37cd6538524074d8597ad29cf641c077ec47e9c9d9 · sha256:7d75664ee2ead7f2… · /containers/cna/references/1
{"url":"https://documentation.concretecms.org/developers/introduction/version-history/8521-release-notes"}
- cve_program_cvelist_v5referenceurn:baitaphish:normalized-source-record:v2:b685f58beadf19d550ae8f37cd6538524074d8597ad29cf641c077ec47e9c9d9 · sha256:7d75664ee2ead7f2… · /containers/cna/references/0
{"url":"https://www.concretecms.org/download"}
- cve_program_cvelist_v5referenceurn:baitaphish:normalized-source-record:v2:b685f58beadf19d550ae8f37cd6538524074d8597ad29cf641c077ec47e9c9d9 · sha256:7d75664ee2ead7f2… · /containers/cna/references/2
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.