CVE-2026-0522 json
Local File Inclusion in the File Upload/Download Process
published 2026-04-01 7 mo ago modified 2026-06-17 4 mo ago also EUVD-2026-17877
- cvss
- 8.8
- version 3.1, NVD
- cisa kev
- Not listed
- not in CISA's catalog
- epss
- 0.6%
- EPSS 0.6% chance of exploitation in 30 days, percentile 49%
- public exploits
- 0
- none known
Summary
A local file inclusion vulnerability in the upload/download flow of the VertiGIS FM application allows authenticated attackers to read arbitrary files from the server by manipulating a file's path during its upload. When the file is subsequently downloaded, the file in the attacker controlled path is returned. Due to the application's ASP.NET architecture, this could potentially lead to remote code execution when the "web.config" file is obtained. Furthermore, the application resolves UNC paths which may enable NTLM-relaying attacks.
This issue affects VertiGIS FM: 10.5.00119 (0d29d428).
Patch / fix
- VertiGIS VertiGIS FM 10.11.363
CISA SSVC
- Exploitation
- Proof of concept is public
- Automatable
- no
- Technical impact
- total
- Assessed
- 7 mo ago
Exploit prediction
0.62% chance of exploitation in the next 30 days, higher than 49% of all scored CVEs (FIRST EPSS, 2026-11-08).
Exploits and checks
- redguard.ch https://www.redguard.ch/blog/2026/04/01/advisory-vertigis-vertigisfm/ referenced PoC, tagged "exploit" by a source, unverified
CVSS scores
| assigned by | version | score | vector |
|---|---|---|---|
| CNA | 4.0 | 7.4 | CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:L/SI:L/SA:N/E:P |
| CNA | 4.0 | 7.4 | CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:L/SI:L/SA:N/E:P/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 | 8.8 | CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H |
Affected products
- VertiGIS VertiGIS FM
Classification
- Weakness
-
- CWE-610 Externally Controlled Reference to a Resource in Another Sphere
References
-
redguard.ch
/blog/2026/04/01/advisory-vertigis-vertigisfm/
third-party-advisory, technical-description, exploit
-
support.vertigis.com
/hc/en-us/articles/31214433137042-Security-Vulnerability-VertiGIS-FM
vendor-advisory
Sources
- CVE List CVE-2026-0522
- NVD CVE-2026-0522
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.