CVE-2018-11091 json
An issue was discovered in MyBiz MyProcureNet 5.0.0.
published 2018-05-14 8 y ago modified 2026-06-17 4 mo ago also EUVD-2018-3134
- cvss
- 9.9
- version 3.1, CNA
- cisa kev
- Not listed
- not in CISA's catalog
- epss
- 3.6%
- EPSS 3.6% chance of exploitation in 30 days, percentile 89%
- public exploits
- 0
- none known
Summary
An issue was discovered in MyBiz MyProcureNet 5.0.0. A malicious file can be uploaded to the webserver by an attacker. It is possible for an attacker to upload a script to issue operating system commands. This vulnerability occurs because an attacker is able to adjust the "HiddenFieldControlCustomWhiteListedExtensions" parameter and add arbitrary extensions to the whitelist during the upload. For instance, if the extension .asp is added to the "HiddenFieldControlCustomWhiteListedExtensions" parameter, the server accepts "secctest.asp" as a legitimate file. Hence malicious files can be uploaded in order to execute arbitrary commands to take over the server.
CISA SSVC
- Exploitation
- none
- Automatable
- no
- Technical impact
- total
- Assessed
- 5 mo ago
Exploit prediction
3.65% chance of exploitation in the next 30 days, higher than 89% of all scored CVEs (FIRST EPSS, 2026-11-08).
CVSS scores
| assigned by | version | score | vector |
|---|---|---|---|
| CISA ADP | 3.1 | 9.9 | CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H |
| CNA | 3.1 | 9.9 | CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H |
| NVD | 3.0 | 9.9 | CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H |
| NVD | 2.0 | 9.0 | AV:N/AC:L/Au:S/C:C/I:C/A:C |
Classification
- Weakness
-
- CWE-434 Unrestricted Upload of File with Dangerous Type
References
-
security.freebsd.org
/advisories/FreeBSD-SA-19:26.mcu.asc
vendor-advisory
-
sec-consult.com
/en/blog/advisories/arbitrary-file-upload-cross-site-scripting-in-mybiz-myprocurenet/
third-party-advisory
-
seclists.org
/fulldisclosure/2018/May/32
mailing-list, third-party-advisory
-
seclists.org
/bugtraq/2019/Nov/16
mailing-list
- packetstormsecurity.com /files/155281/FreeBSD-Security-Advisory-FreeBSD-SA-19-26.mcu.html
Sources
- CVE List CVE-2018-11091
- NVD CVE-2018-11091
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