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01 Record

CVE-2025-27145

copyparty renders unsanitized filenames as HTML when user uploads empty files

LowPUBLISHEDCNA: GitHub_M
CNA base score3.6 CVSS v3.xCVSS:3.1/AV:L/AC:H/PR:N/UI:R/S:U/C:L/I:L/A:N

02 Description

copyparty renders unsanitized filenames as HTML when user uploads empty files

03 Exploitation and scoring

Exploitation
Public exploit code exists. CISA's assessment records a public proof of concept. That is not a report of exploitation in the wild.
SSVC decision
  • ExploitationpocPublic proof-of-concept exploit code exists. Not a report of exploitation in the wild.
  • AutomatablenoAt least one step from reconnaissance to exploitation cannot be reliably automated.
  • Technical ImpactpartialSuccessful exploitation gives limited control of the vulnerable component.
CISA publishes the decision points, not a final SSVC decision. The decision also depends on mission and well-being impact, which is a property of your deployment rather than of the vulnerability.
EPSS probability
0.46% probability of exploitation activity in the next 30 days.
EPSS percentile
Equal to or higher than the score of 40.2% of scored records. A rank, not a probability.
NVD base score
6.1 (CVSS v3.x), scored by the NVD independently of the CNA.
NVD CVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N
NVD analysis status
Analyzed. NVD last modified this record on 2026-06-17.
Red Hat severity
No Red Hat rating. Red Hat rates the CVEs that affect its products.

Exploit-prediction scores from FIRST. Independent scoring and analysis status from the NVD. Vendor severity from Red Hat. Exploitation assessment and catalog membership from CISA.

04 Metadata

Published
2025-02-25 01:36Z1 YR AGO
Last updated
2025-02-25 13:59Z1 YR AGO
Reserved
2025-02-19
Assigning CNA
GitHub_M
Record state
PUBLISHED
Severity
Low (CVSS 3.6)
CNA CVSS vector
CVSS:3.1/AV:L/AC:H/PR:N/UI:R/S:U/C:L/I:L/A:N
Weaknesses
  • CWE-79Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')Base
  • CWE-83Improper Neutralization of Script in Attributes in a Web PageVariant
Data version
5.1
Document digest
b23d92560b74b88d2565d032cdba501305f1980d1f379bb4314a60e5a8b51f5e

05 Affected products

VendorProductVersionsPlatforms
9001copyparty< 1.16.15—

06 References