Skip to content
Fencer Vulns
medium 6.3

CVE-2025-1818 json

zj1983 zz ZfileAction.upload unrestricted upload

published 2025-03-02 20 mo ago modified 2026-06-17 4 mo ago also EUVD-2025-5552

cvss
6.3
version 3.1, CNA
cisa kev
Not listed
not in CISA's catalog
epss
0.7%
EPSS 0.7% chance of exploitation in 30 days, percentile 52%
public exploits
0
none known

Summary

A vulnerability, which was classified as critical, has been found in zj1983 zz up to 2024-8. This issue affects some unknown processing of the file src/main/java/com/futvan/z/system/zfile/ZfileAction.upload. The manipulation of the argument file leads to unrestricted upload. The attack may be initiated remotely. The exploit has been disclosed to the public and may be used. The vendor was contacted early about this disclosure but did not respond in any way.

CISA SSVC

Exploitation
Proof of concept is public
Automatable
no
Technical impact
partial
Assessed
20 mo ago

Exploit prediction

0.66% chance of exploitation in the next 30 days, higher than 52% of all scored CVEs (FIRST EPSS, 2026-11-08).

Exploits and checks

  • yuque.com https://www.yuque.com/u123456789-6sobi/cdgcbq/bg2g3eit41o4cpd4 referenced PoC, tagged "exploit" by a source, unverified
  • yuque.com https://www.yuque.com/u123456789-6sobi/cdgcbq/bg2g3eit41o4cpd4# referenced PoC, tagged "exploit" by a source, unverified
  • vuldb.com https://vuldb.com/?ctiid.298091 referenced PoC, tagged "exploit" by a source, unverified

CVSS scores

assigned by version score vector
CNA 4.0 5.3 CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:L/VI:L/VA:L/SC:N/SI:N/SA:N
CNA 3.1 6.3 CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:L
CNA 3.0 6.3 CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:L
CNA 2.0 6.5 AV:N/AC:L/Au:S/C:P/I:P/A:P
CNA 4.0 5.3 CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:L/VI:L/VA:L/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X
NVD 3.1 9.8 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Affected products

  • zj1983 zz

Classification

Weakness
  • CWE-434 Unrestricted Upload of File with Dangerous Type
  • CWE-284 Improper Access Control

References

Sources

Fencer Vulns keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.