What is the CVSS score of CVE-2021-23430?

CVE-2021-23430 has a CVSS 3.1 base score of 7.5 (High). CVSS vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N. EPSS exploitation probability: 1.8%.

Is there a public PoC exploit available for CVE-2021-23430?

Yes, a public proof-of-concept exploit is available for CVE-2021-23430. Prioritise patching immediately. EPSS: 1.8%.

Startserver CVE-2021-23430

HIGH

Path Traversal (CWE-22)

2021-08-24 report@snyk.io

Path Traversal Startserver

7.5

CVSS 3.1 · NVD

Severity by source

NVD PRIMARY

7.5 HIGH

AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N

Primary rating from NVD · only source for this CVE.

CVSS VectorNVD

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N

Attack Vector

Network

Attack Complexity

Low

Privileges Required

None

User Interaction

None

Scope

Unchanged

Confidentiality

High

Integrity

None

Availability

None

Lifecycle Timeline

CVE Published

Aug 24, 2021 - 08:15 nvd

HIGH 7.5

DescriptionNVD

All versions of package startserver are vulnerable to Directory Traversal due to missing sanitization.

AnalysisAI

All versions of package startserver are vulnerable to Directory Traversal due to missing sanitization. Rated high severity (CVSS 7.5), this vulnerability is remotely exploitable, no authentication required, low attack complexity. Public exploit code available and no vendor patch available.

Technical ContextAI

This vulnerability is classified as Path Traversal (CWE-22), which allows attackers to access files and directories outside the intended path. All versions of package startserver are vulnerable to Directory Traversal due to missing sanitization. Affected products include: Startserver Project Startserver.

RemediationAI

No vendor patch is available at time of analysis. Monitor vendor advisories for updates. Validate and canonicalize file paths. Use chroot or sandboxing. Reject input containing path separators or '../' sequences.