Attack ChainAIDerived
Hypothetical attack flow derived from CVE metadata – not a confirmed exploit chain
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AccessReach endpoint invoking Command::font
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ExploitInject shell metacharacters in fontFile
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ExecutionCommand string passed to OS shell
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ImpactArbitrary OS command execution
Vulnerability Assessment
| Weakness |
CWE
OWASP Top 10:2025
A05:2025 - Injection
ASVS 5.0
V1 - Encoding and Sanitization OS command sanitization, avoid shell exec
MITRE ATT&CK
2 techniques across 1 tactic: Execution The technique list with ATT&CK links and the kill-chain view is part of the Basic plan and up. |
| Exploitation Conditions | Exploitation requires that an application using orbitale/imagemagick-php (≤3.3.5) passes attacker-influenced data into the fontFile argument of Command::font in src/Command.php without sanitization; the shell metacharacters in that value are then executed by the underlying OS. The primary limiting factor is that this is a library component, not a service - so exploitation depends entirely on whether the host application exposes the fontFile parameter to untrusted input and on the OS/shell context in which ImageMagick commands are run. No authentication is required by the library itself (CVSS PR:N), but no fix is available since the vendor did not respond to disclosure. |
| Impact | This is a textbook CVSS-looks-moderate, real-world-risk-is-context-dependent case. The input CVSS 4.0 vector (AV:N/AC:L/AT:N/PR:N/UI:N) with LOW impacts (VC:L/VI:L/VA:L) yields a 5.5 (Medium) score, and E:P explicitly marks a proof-of-concept exploit. However, there is a tension worth flagging: the weakness is CWE-78 OS command injection via the fontFile argument of Command::font, which - if attacker-controlled input actually reaches that argument - typically enables arbitrary command execution and therefore far higher impact than the LOW/LOW/LOW ratings VulDB assigned. The counterweight is that orbitale/imagemagick-php is a LIBRARY, not a standalone service, so the AV:N/PR:N framing assumes the consuming application exposes the fontFile parameter to untrusted input; that reachability is NOT guaranteed by the library itself. No EPSS score and no KEV listing are present in the input, so there is no signal of mass or active exploitation - a publicly available PoC exists, but publicly available exploit code is a distinct and weaker signal than confirmed in-the-wild use. Net: treat as a real but conditional issue - prioritize only where this library is deployed AND application code passes user-influenced data into Command::font. |
| Exploit ScenarioDerived | A web application uses the orbitale/imagemagick-php library (≤3.3.5) and passes a user-supplied value (e.g. an uploaded or selected font path/name) into Command::font's fontFile argument without sanitization. An attacker submits a crafted fontFile value containing shell metacharacters, which is concatenated into the ImageMagick command line and executed by the OS. A public proof-of-concept exploit has been released (gist by 0xSebin), lowering the barrier to weaponization. |
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Alert meAnalysisAIv1 – Oct 19, 2026
OS command injection in orbitale/imagemagick-php through 3.3.5 lets unauthenticated remote attackers inject shell metacharacters through the fontFile argument of Command::font when a host application passes untrusted input to that parameter. Publicly available exploit code exists, but there is no CISA KEV confirmation and exploitation depends entirely on whether the calling application exposes fontFile and on the OS/shell context in which ImageMagick commands run. The vendor did not respond to disclosure, and no vendor-released patch was identified at time of analysis.
RemediationAI
No vendor-released patch was identified at time of analysis; because orbitale/imagemagick-php is a library, remediation first requires checking whether a fixed release becomes available after version 3.3.5. Until then, do not pass user-controlled data into the fontFile argument of Command::font: enforce a server-side allowlist of known font paths or font identifiers and reject shell metacharacters. If escaping cannot be avoided, apply escapeshellarg/escapeshellcmd at the application integration boundary, with the trade-off that legitimate font paths or names containing special characters may break. Run ImageMagick command execution in a low-privilege, isolated container with a read-only filesystem and no unnecessary network access to limit the blast radius if injection succeeds, recognizing that this reduces impact but does not fix the flaw. Monitor the VulDB advisory at https://vuldb.com/vuln/422347 and the public exploit reference at https://gist.github.com/0xSebin/834b7ab2e72d68be51d204193f427a20 for updates.
Affected VersionsENISA
Affected Packages
Source: OSV (Open Source Vulnerabilities)
Affects your stack
Affects 1 package in euvd
Checking this CVE against your own stacks and servers is part of the Basic plan and up.
Technical ContextAI · show details
The affected component is a PHP wrapper library for ImageMagick; CWE-78 (OS command injection) indicates that the fontFile value is incorporated into a command executed by the underlying operating system without adequate neutralization. The flaw is specifically in src/Command.php in Command::font, and the CPE cpe:2.3:a:orbitale:imagemagick-php:*:*:*:*:*:*:*:* is a wildcard covering the product. Because this is a library rather than a network service, exploitability depends on the host application exposing fontFile to attacker-influenced input and on the shell/OS context used to invoke ImageMagick. The supplied CVSS 4.0 vector scores 5.5 with PR:N, while the independent CVSS 3.1 assessment rates confidentiality, integrity and availability impacts as High; practical risk is therefore context-dependent, but the public exploit code and lack of vendor response raise concern for applications that pass untrusted font paths.
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Severity by source
CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:L/VA:L/SC:N/SI:N/SA:N/E:P
OS command injection yields arbitrary command execution (C/I/A:H); AV:N and PR:N reflect the library's own lack of auth, assuming an application routes untrusted input to fontFile, with scope unchanged as execution stays in the app context.
Primary rating from Vendor (VulDB).
CVSS VectorVendor: VulDB
Lifecycle Timeline
2DescriptionCVE.org
A security flaw has been discovered in orbitale imagemagick-php up to 3.3.5. Affected by this issue is the function Command::font of the file src/Command.php. The manipulation of the argument fontFile results in os command injection. The attack can be executed remotely. The exploit has been released to the public and may be used for attacks. The vendor was contacted early about this disclosure but did not respond in any way.
Threat Intelligence Overview
How this decision was reached
The engine reads each signal below and applies a fixed list of rules from top to bottom. The first rule that matches sets the recommended action – like a statement, every line is shown.
What every action level means
SSVC AssessmentENISA
Priority Score
Attack Technique
OS command injection occurs when an application passes unsanitized user input directly into system shell commands.
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EUVD-2026-104602
GHSA-v63h-p5cc-2gj9
NVD
CVE.org
EPSS
Vulnrichment
VulDB
Exploit-DB