Arbitrary file upload in Jhumanj Opnform
CVE-2025-11436
A vulnerability was detected in JhumanJ OpnForm up to 1.9.3. Affected by this issue is some unknown functionality of the file /answer. The manipulation results in unrestricted upload. The attack can be launched remotely. The exploit is now public and may be used. The patch is identified as 95c3e23856465d202e6aec10bdb6ee0688b5305a. It is advisable to implement a patch to correct this issue.
Published · last modified .
CVSS v3 metric
CVSS v3 base score 6.3 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:L.
EPSS exploit prediction
EPSS: 0.004 (29.2th percentile), scored .
Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 29th percentile — 29.2% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.003 · newest: 0.004 · change: +0.000
Affected products
- Jhumanj Opnform — versions 1.9.0, 1.9.1, 1.9.2
Weakness classification (CWE)
References
- vuldb.com/ (VDB Entry, Third Party Advisory, vdb-entry)
- vuldb.com/ (signature, Permissions Required, permissions-required, VDB Entry)
- vuldb.com/ (VDB Entry, Third Party Advisory, third-party-advisory)
- docs.google.com/document/d/1GUjJA9vUbsXUngAv6ySsbCIhVynf8_djardLZYEDOe0/edit (Exploit, Third Party Advisory, exploit)
- github.com/JhumanJ/OpnForm/pull/900/commits/95c3e23856465d202e6aec10bdb6ee0688b… (issue-tracking, Patch, patch)
Frequently asked questions
- What is CVE-2025-11436?
- CVE-2025-11436 is a medium-severity vulnerability in Jhumanj Opnform, classified under Improper Access Control. CVSS score: 6.3/10. Published 2025-10-08.
- How severe is CVE-2025-11436?
- Medium severity. CVSS v3 base score is 6.3 out of 10.