CVE-2025-6278

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.
Path Traversal
ProviderTypeBase ScoreAtk. VectorAtk. ComplexityPriv. RequiredVector
NISTNIST
5.5 MEDIUM
ADJACENT_NETWORK
LOW
LOW
CVSS:3.1/AV:A/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:L
VulDBCNA
5.5 MEDIUM
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
CISA-ADPADP
---
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Base Score
CVSS 3.x
EPSS Score
Percentile: 30%
VendorProductVersion
upsonicupsonic
𝑥
≤ 0.55.6
𝑥
= Vulnerable software versions
Common Weakness Enumeration
References
https://github.com/Upsonic/Upsonic/issues/356
https://vuldb.com/?ctiid.313282
https://vuldb.com/?id.313282
https://vuldb.com/?submit.593096
https://github.com/Upsonic/Upsonic/issues/356