CVEvulnerability
CVE-2019-9842
7.2 HIGH
Official page ↗
- Status
- Modified
- Published
- 2019-06-14
- Last modified
- 2026-06-17
- Assigner
- [email protected]
- CVSS 3.0 ([email protected])
- 7.2 HIGH — CVSS:3.0/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H
- CVSS 2.0 ([email protected])
- 6.5 MEDIUM — AV:N/AC:L/Au:S/C:P/I:P/A:P
- Weaknesses
- CWE-434
Description
madskristensen MiniBlog through 2018-05-18 allows remote attackers to execute arbitrary ASPX code via an IMG element with a data: URL, because SaveFilesToDisk in app_code/handlers/PostHandler.cs writes a decoded base64 string to a file without validating the extension.
Affected configurations
• miniblog project miniblog (<= 2018-05-18)
Related
Weakness · CWE (1)
- CWE-434 Unrestricted Upload of File with Dangerous Type weakness
References
- https://github.com/madskristensen/MiniBlog/blob/1a7ae45ddba484e2c8f808e288e018748c9ddb57/Website/app_code/handlers/PostHandler.cs#L85 Third Party Advisory
- https://rastating.github.io/miniblog-remote-code-execution/ Exploit, Third Party Advisory
- https://github.com/madskristensen/MiniBlog/blob/1a7ae45ddba484e2c8f808e288e018748c9ddb57/Website/app_code/handlers/PostHandler.cs#L85 Third Party Advisory
- https://rastating.github.io/miniblog-remote-code-execution/ Exploit, Third Party Advisory