CVE-2026-75827High· 8.8▾ MidnightPoC availableGrav before 2.0.15 contains an arbitrary file write vulnerability in the Blueprint dynamic-data bare-function validation that uses an incomplete denylist instead of a positive allowlist. Attackers with page-edit or blueprint-config acces…
▾ Midnight zone — Critical, or high with PoC / in-the-wild
impact 48.4 · likelihood 0.2 · exploitation 12
A public proof-of-concept already exists for this vulnerability — see Exploit availability below.
Public exploit / PoC code seen in 1 source. Availability, not in-the-wild use.
Stakeholder-Specific Vulnerability Categorization from CISA's ADP record at CVE.org: whether exploitation is observed, whether an attack can be automated, and how much of the system is at stake.
Exploit-prediction probability, daily snapshots since Sep 8.
Disclosure to exploitation, from the record and what we observed since indexing it.
Disclosed via NVD
0.6%
1 GitHub repo
0.6% → 0.9%
Last analysed / modified upstream
Grav before 2.0.15 contains an arbitrary file write vulnerability in the Blueprint dynamic-data bare-function validation that uses an incomplete denylist instead of a positive allowlist. Attackers with page-edit or blueprint-config access can invoke the error_log function through a data directive to append PHP payloads to web-accessible files, achieving remote code execution.
Refer to the linked advisories for vendor-supplied fixes and affected version ranges.
Affected packages:
getgrav/grav <= 2.0.14Patched in:
getgrav/grav 2.0.15Field changes observed since this record was first indexed.
Connected by shared product, vendor, weakness, or advisory.
GHSA-fwwx-3362-3947Critical· 8.8Duplicate Advisory: Grav: Blueprint dynamic-data bare-function branch is denylist-gated and omits error_log, giving arbitrary file write
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CVE-2026-65008Critical· 9.8Grav 2.0.4 (fixed in 2.0.7) contains a remote code execution vulnerability in Blueprint::dynamicData() (system/src/Grav/Common/Data/Blueprint.php), which passes a Class::method callable string and its arguments directly to call_user_func…
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