Statamic CMS vulnerable to remote code execution via form uploads

CVE-2023-48217 → View on GitHub ↗ View on CVE.org ↗ View on NVD ↗

Description

Impact

Similar to another advisory, certain additional PHP files crafted to look like images may be uploaded regardless of mime type validation rules. This affects front-end forms using the "Forms" feature, and asset upload fields in the control panel.

Patches

It has been patched in 3.4.14 and 4.34.0.

Basic information

Type
reviewed
Severity
high
Advisory on GitHub
Open advisory ↗
Repository advisory
Open repository advisory ↗
Source code
Browse source ↗
Published (advisory)
2023-11-14 22:25:41 UTC
Updated
2023-11-22 18:24:32 UTC
GitHub reviewed
2023-11-14 22:25:41 UTC
NVD published
2023-11-14

EPSS Score

Score Percentile
1.05% 77.50%

CVSS Scores

Base score Version Severity Vector
8.8 3.1 —
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H Click to expand
Attack vector (AV:N)
Could be attacked over the internet or any normal routed network—not just someone sitting at the machine.
Attack complexity (AC:L)
Once they can reach the bug, pulling it off is straightforward—no weird race conditions or rare setup.
Privileges required (PR:L)
A normal user session is enough; they don’t have to be admin.
User interaction (UI:N)
Nobody has to click “OK” or open a trap file; it can work without a victim helping.
Scope (S:U)
Damage stays in the same “trust bubble” as the broken component—no big spill into unrelated systems.
Confidentiality (C:H)
Serious risk that confidential data gets exposed in a big way.
Integrity (I:H)
They could widely tamper with or forge data—trust in the data is badly hurt.
Availability (A:H)
Could take the service down hard or make it unusable for people who depend on it.

Identifiers

Type Value
GHSA GHSA-2r53-9295-3m86 ↗
CVE CVE-2023-48217 ↗

CWEs

CWE id Name
CWE-94 Improper Control of Generation of Code ('Code Injection')
CWE-434 Unrestricted Upload of File with Dangerous Type

Credits

  • ahinkle (reporter)

Affected packages (2)

Vulnerable version ranges and first patched releases as published by GitHub.

Ecosystem Package Vulnerable range First patched Vulnerable functions
composer statamic/cms >= 4.0.0, < 4.34.0 4.34.0 —
composer statamic/cms < 3.4.14 3.4.14 —

References

cvelogic Threat Intelligence