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openssl_encrypt CVE-2026-74884

| EUVDEUVD-2026-60103 HIGH
External Control of File Name or Path (CWE-73)
2026-08-17 VulnCheck GHSA-4hf6-j482-f379
Path Traversal Openssl Encrypt
8.7
CVSS 4.0 · Vendor: VulnCheck
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Severity by source

Vendor (VulnCheck) PRIMARY
8.7 HIGH
CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X
vuln.today AI
7.5 HIGH

Network-accessible endpoint with no authentication required; read-only traversal yields high confidentiality impact and no integrity or availability effect.

3.1 AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
4.0 AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N

Primary rating from Vendor (VulnCheck).

CVSS VectorVendor: VulnCheck

CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X
Attack Vector
Network
Attack Complexity
Low
Privileges Required
None
User Interaction
None
Scope
X

Lifecycle Timeline

3
Analysis Generated
Aug 17, 2026 - 13:11 vuln.today
Patch available
Aug 17, 2026 - 12:01 EUVD
CVE Published
Aug 17, 2026 - 11:04 cve.org
HIGH 8.7

DescriptionCVE.org

openssl_encrypt versions before 1.4.0 contain a path traversal vulnerability in the _is_safe_path method where the plugin_id parameter is not sanitized before constructing the plugin config directory path. Attackers can declare a malicious plugin_id containing path traversal sequences like '../' to access arbitrary directories outside the intended plugin directory.

AnalysisAI

Path traversal in the jahlives openssl_encrypt plugin (versions before 1.4.0) permits unauthenticated remote attackers to escape the intended plugin configuration directory by supplying crafted plugin_id values containing sequences such as '../'. The _is_safe_path method fails to sanitize the plugin_id parameter before using it to construct filesystem paths, exposing arbitrary server-side files readable by the application process. …

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Attack ChainAIDerived

Hypothetical attack flow derived from CVE metadata

Access
Send HTTP request with crafted plugin_id containing '../' sequences
Delivery
Reach _is_safe_path validation in openssl_encrypt
Exploit
Bypass path sanitization check
Execution
Construct filesystem path outside plugin directory
Persist
Read arbitrary file accessible to application process
Impact
Exfiltrate credentials or configuration data
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Vulnerability AssessmentAI

Exploitation The targeted application must expose a network-reachable code path that passes attacker-controlled input to the plugin_id parameter and subsequently invokes the _is_safe_path method in openssl_encrypt. … Additional conditions and limiting factors are described in the full assessment.
Risk Assessment The CVSS 4.0 vector (AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:N/VA:N) reflects a network-exploitable, zero-authentication, low-complexity vulnerability with high confidentiality impact - a profile that typically warrants urgent prioritization. … Full risk analysis with EPSS, KEV, and SSVC signal comparison available after sign-in.
Exploit Scenario An unauthenticated attacker sends an HTTP request to an exposed endpoint that processes the plugin_id parameter, supplying a value such as '../../etc/passwd' or '../../var/www/html/config/db.php'. The _is_safe_path method fails to reject the traversal sequence, the plugin constructs a path resolving outside the plugin config directory, and the application returns the contents of the targeted file. …
Remediation Upgrade openssl_encrypt to version 1.4.0 or later, where the _is_safe_path method has been corrected to sanitize the plugin_id parameter. … Detailed patch versions, workarounds, and compensating controls in full report.
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Recommended ActionAI

Within 24 hours, identify all systems running jahlives openssl_encrypt plugin versions prior to 1.4.0 and assess file exposure risk by reviewing access logs. …

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CVE-2026-74884 vulnerability details – vuln.today
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