CVE Explorer
CVE-2026-34735
The Hytale Modding Wiki is a free service for Hytale mods to host their documentation & wikis. In version 1.2.0 and prior, the quickUpload() endpoint validates uploaded files by checking their MIME type (via PHP's finfo, which inspects file contents) but constructs the stored filename using the client-supplied file extension from getClientOriginalExtension(). These two checks are independent: an attacker can upload a file whose content passes the MIME allowlist while using a .php extension. The
Known exploited
Not asserted
Disputed
No
Stale source
No
Conflicts
0
Affected products and versions
1 source assertion{"product":"wiki","vendor":"HytaleModding","versions":[{"status":"affected","version":"<= 1.2.0"}]}
- cve_program_cvelist_v5affectedurn:baitaphish:normalized-source-record:v2:f3f9e753aa15c89c709a6fb5310f22f53b067638510c552c0cf51319c81f1fb9 · sha256:af10189f8e74b23c… · /containers/cna/affected/0
Provider-owned CVSS observations
1 source assertion{"metric":{"attackComplexity":"LOW","attackRequirements":"NONE","attackVector":"NETWORK","baseScore":8.7,"baseSeverity":"HIGH","privilegesRequired":"LOW","subAvailabilityImpact":"NONE","subConfidentialityImpact":"NONE","subIntegrityImpact":"NONE","userInteraction":"NONE","vectorString":"CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N","version":"4.0","vulnAvailabilityImpact":"HIGH","vulnConfidentialityImpact":"HIGH","vulnIntegrityImpact":"HIGH"},"metric_type":"cvssV4_0"}
- cve_program_cvelist_v5cvssurn:baitaphish:normalized-source-record:v2:f3f9e753aa15c89c709a6fb5310f22f53b067638510c552c0cf51319c81f1fb9 · sha256:af10189f8e74b23c… · /containers/cna/metrics/0/cvssV4_0
CWE assertions
1 source assertion{"cweId":"CWE-434","description":"CWE-434: Unrestricted Upload of File with Dangerous Type","lang":"en","type":"CWE"}
- cve_program_cvelist_v5cweurn:baitaphish:normalized-source-record:v2:f3f9e753aa15c89c709a6fb5310f22f53b067638510c552c0cf51319c81f1fb9 · sha256:af10189f8e74b23c… · /containers/cna/problemTypes/0/descriptions/0
Source references
1 source assertion{"name":"https://github.com/HytaleModding/wiki/security/advisories/GHSA-2xqq-6778-h4j9","tags":["x_refsource_CONFIRM"],"url":"https://github.com/HytaleModding/wiki/security/advisories/GHSA-2xqq-6778-h4j9"}
- cve_program_cvelist_v5referenceurn:baitaphish:normalized-source-record:v2:f3f9e753aa15c89c709a6fb5310f22f53b067638510c552c0cf51319c81f1fb9 · sha256:af10189f8e74b23c… · /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.