CVSS 4.0
2.0 lowCVSS: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:PCVE-2025-6278
Low (2.0) in upsonic upsonic. EPSS 0.7% chance of exploitation in the next 30 days. Fixed in upsonic 0.56.0.
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.
Severity
CVSS 3.1
9.8 criticalCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H- EPSS
- 0.7% chance of exploitation in the next 30 days; higher than 53% of CVEs (scores of 2026-10-31)
- CWE
- CWE-22
- Published
- Modified
- Record from
- the NVD, synced
Affected
- upsonic:upsonic
Packages (OSV)
| Advisory | Ecosystem | Package | Affected | Fixed in |
|---|---|---|---|---|
| GHSA-8jf4-fcjr-68c2 | PyPI | upsonic | <0.56.0 | 0.56.0 |
| PYSEC-2025-67 | PyPI | upsonic | <0.56.0 | 0.56.0 |