CVE Explorer
CVE-2026-10721
Concrete CMS below 9.5.2 is vulnerable to PHP Object Injection via unserialize() calls in the in Permission, Cache, and Search components. An unauthenticated attacker may trigger arbitrary PHP object instantiation if a malicious serialized payload has been placed in the database. Thanks XananasX7 for reporting.
Known exploited
Not asserted
Disputed
No
Stale source
No
Conflicts
0
Affected products and versions
1 source assertion{"collectionURL":"https://github.com/concretecms/concretecms","defaultStatus":"unaffected","product":"Concrete CMS","repo":"https://github.com/concretecms/concretecms","vendor":"Concrete CMS","versions":[{"lessThanOrEqual":"9.5.1","status":"affected","version":"5","versionType":"git"}]}
- cve_program_cvelist_v5affectedurn:baitaphish:normalized-source-record:v2:078d49f688b8648be46b7da16e005c4de78d212b2812fea2ae070f43bae37eb6 · sha256:6ce275ce9590d499… · /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":"LOCAL","baseScore":8.4,"baseSeverity":"HIGH","exploitMaturity":"NOT_DEFINED","privilegesRequired":"HIGH","providerUrgency":"NOT_DEFINED","subAvailabilityImpact":"NONE","subConfidentialityImpact":"NONE","subIntegrityImpact":"NONE","userInteraction":"NONE","valueDensity":"NOT_DEFINED","vectorString":"CVSS:4.0/AV:L/AC:L/AT:N/PR:H/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N","version":"4.0","vulnAvailabilityImpact":"HIGH","vulnConfidentialityImpact":"HI…
- cve_program_cvelist_v5cvssurn:baitaphish:normalized-source-record:v2:078d49f688b8648be46b7da16e005c4de78d212b2812fea2ae070f43bae37eb6 · sha256:6ce275ce9590d499… · /containers/cna/metrics/0/cvssV4_0
CWE assertions
1 source assertion{"cweId":"CWE-502","description":"CWE-502 Deserialization of untrusted data","lang":"en","type":"CWE"}
- cve_program_cvelist_v5cweurn:baitaphish:normalized-source-record:v2:078d49f688b8648be46b7da16e005c4de78d212b2812fea2ae070f43bae37eb6 · sha256:6ce275ce9590d499… · /containers/cna/problemTypes/0/descriptions/0
Source references
1 source assertion{"tags":["release-notes"],"url":"https://documentation.concretecms.org/9-x/developers/introduction/version-history/952-release-notes"}
- cve_program_cvelist_v5referenceurn:baitaphish:normalized-source-record:v2:078d49f688b8648be46b7da16e005c4de78d212b2812fea2ae070f43bae37eb6 · sha256:6ce275ce9590d499… · /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.