A vulnerability classified as critical was found in Upsonic up to 0.55.6. This vulnerability affects the function os.path.join of the file markdown/server.py. The manipulation of the argument file.filename leads to path traversal. The exploit has been disclosed to the public and may be used.

Metrics

Attack Vector Adjacent Network

Attack Complexity Low

Privileges Required Low

Attack Requirements None

User Interaction None

Vulnerable System Confidentiality Impact Low

Vulnerable System Integrity Impact Low

Vulnerable System Availability Impact Low

Subsequent System Confidentiality Impact None

Subsequent System Integrity Impact None

Subsequent System Availability Impact None

Attack Vector Adjacent Network

Attack Complexity Low

Privileges Required Low

Scope Unchanged

Confidentiality Impact Low

Integrity Impact Low

Availability Impact Low

User Interaction None

Attack Vector Adjacent Network

Attack Complexity Low

Privileges Required Low

Scope Unchanged

Confidentiality Impact Low

Integrity Impact Low

Availability Impact Low

User Interaction None

Access Vector Adjacent Network

Access Complexity Low

Authentication Single

Confidentiality Impact Partial

Integrity Impact Partial

Availability Impact Partial

This CVE is not in the KEV list.

The EPSS score is 0.0012.

Exploitation poc

Automatable no

Technical Impact partial

Affected Vendors & Products

Vendors Products
Upsonic
  • Upsonic

Configuration 1 [-]

cpe:2.3:a:upsonic:upsonic:*:*:*:*:*:*:*:*

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Advisories
Source ID Title
EUVD EUVD EUVD-2025-18698 Upsonic is vulnerable to Path Traversal attack through its os.path.join function
Github GHSA Github GHSA GHSA-8jf4-fcjr-68c2 Upsonic is vulnerable to Path Traversal attack through its os.path.join function
Fixes

Solution

No solution given by the vendor.

Workaround

No workaround given by the vendor.

References
Link Providers
https://github.com/Upsonic/Upsonic/issues/356 cve-icon cve-icon cve-icon
https://vuldb.com/?ctiid.313282 cve-icon cve-icon
https://vuldb.com/?id.313282 cve-icon cve-icon
https://vuldb.com/?submit.593096 cve-icon cve-icon
History

Tue, 08 Jul 2025 17:00:00 +0000

Type Values Removed Values Added
First Time appeared Upsonic
Upsonic upsonic
CPEs cpe:2.3:a:upsonic:upsonic:*:*:*:*:*:*:*:*
Vendors & Products Upsonic
Upsonic upsonic

Mon, 23 Jun 2025 20:15:00 +0000

Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'no', 'Exploitation': 'poc', 'Technical Impact': 'partial'}, 'version': '2.0.3'}

Thu, 19 Jun 2025 20:45:00 +0000

Type Values Removed Values Added
Description A vulnerability classified as critical was found in Upsonic up to 0.55.6. This vulnerability affects the function os.path.join of the file markdown/server.py. The manipulation of the argument file.filename leads to path traversal. The exploit has been disclosed to the public and may be used.
Title Upsonic server.py os.path.join path traversal
Weaknesses CWE-22
References
Metrics cvssV2_0

{'score': 5.2, 'vector': 'AV:A/AC:L/Au:S/C:P/I:P/A:P/E:POC/RL:ND/RC:UR'}

cvssV3_0

{'score': 5.5, 'vector': 'CVSS:3.0/AV:A/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:L/E:P/RL:X/RC:R'}

cvssV3_1

{'score': 5.5, 'vector': 'CVSS:3.1/AV:A/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:L/E:P/RL:X/RC:R'}

cvssV4_0

{'score': 5.1, 'vector': 'CVSS:4.0/AV:A/AC:L/AT:N/PR:L/UI:N/VC:L/VI:L/VA:L/SC:N/SI:N/SA:N/E:P'}
cve-icon MITRE

Status: PUBLISHED

Assigner: VulDB

Published:

Updated: 2025-06-23T19:30:11.485Z

Reserved: 2025-06-19T06:52:48.340Z

Link: CVE-2025-6278

cve-icon Vulnrichment

Updated: 2025-06-23T16:16:31.519Z

cve-icon NVD

Status : Analyzed

Published: 2025-06-19T21:15:27.017

Modified: 2025-07-08T16:38:18.260

Link: CVE-2025-6278

cve-icon Redhat

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cve-icon OpenCVE Enrichment

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