Arbitrary file upload in Bludit
CVE-2026-25099
Bludit’s API plugin allows an authenticated attacker with a valid API token to upload files of any type and extension without restriction, which can then be executed, leading to Remote Code Execution. This issue was fixed in 3.18.4.
Vulnerability class: Unrestricted File Upload
Published · last modified .
CVSS v3 metric
CVSS v3 base score 8.8 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H.
EPSS exploit prediction
EPSS: 0.019 (79.1th percentile), scored .
Low probability of exploitation in the next 30 days, but still tracked. 79th percentile — 79.1% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.019 · newest: 0.019 · change: 0.000
Affected products
- Bludit — versions 0
Weakness classification (CWE)
Public proof-of-concept exploits
References
- cert.pl/posts/2026/03/CVE-2026-25099 (Third Party Advisory, third-party-advisory)
- github.com/bludit/bludit/releases/tag/3.18.4 (release-notes, Release Notes)
Frequently asked questions
- What is CVE-2026-25099?
- CVE-2026-25099 is a high-severity vulnerability in Bludit, classified under Unrestricted Upload of File with Dangerous Type. CVSS score: 8.8/10. Published 2026-03-27.
- How severe is CVE-2026-25099?
- High severity. CVSS v3 base score is 8.8 out of 10.
- Is CVE-2026-25099 known to be exploited?
- 1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.