What is the CVSS score of CVE-2021-33211?

CVE-2021-33211 has a CVSS 3.1 base score of 6.5 (Medium). CVSS vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:N. EPSS exploitation probability: 1.7%.

Is there a public PoC exploit available for CVE-2021-33211?

Yes, a public proof-of-concept exploit is available for CVE-2021-33211. Prioritise patching immediately. EPSS: 1.7%.

Http Commander CVE-2021-33211

MEDIUM

Path Traversal (CWE-22)

2021-07-14 cve@mitre.org

Path Traversal Http Commander

6.5

CVSS 3.1 · NVD

Severity by source

NVD PRIMARY

6.5 MEDIUM

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

Primary rating from NVD · only source for this CVE.

CVSS VectorNVD

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

Attack Vector

Network

Attack Complexity

Low

Privileges Required

Low

User Interaction

None

Scope

Unchanged

Confidentiality

None

Integrity

High

Availability

None

Lifecycle Timeline

CVE Published

Jul 14, 2021 - 14:15 nvd

MEDIUM 6.5

DescriptionNVD

AnalysisAI

A Directory Traversal vulnerability in the Unzip feature in Elements-IT HTTP Commander 5.3.3 allows remote authenticated users to write files to arbitrary directories via relative paths in ZIP. Rated medium severity (CVSS 6.5), this vulnerability is remotely exploitable, 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. A Directory Traversal vulnerability in the Unzip feature in Elements-IT HTTP Commander 5.3.3 allows remote authenticated users to write files to arbitrary directories via relative paths in ZIP archives. Affected products include: Element-It Http Commander.

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.