CVE-2019-18839
Last modified
CVE-2019-18839 is a critical-severity vulnerability rated 9/10 on the CVSS scale. FUDForum 3.0.9 is vulnerable to Stored XSS via the nlogin parameter. This may result in remote code execution. EPSS estimates a 5.44% chance of exploitation in the next 30 days.
Description
FUDForum 3.0.9 is vulnerable to Stored XSS via the nlogin parameter. This may result in remote code execution. An attacker can use a user account to fully compromise the system using a POST request. When the admin visits the user information, the payload will execute. This will allow for PHP files to be written to the web root, and for code to execute on the remote server.
Metrics
CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:H/I:H/A:H
Weakness Enumeration
Affected Software
| Vendor | Product | Versions |
|---|---|---|
| Fudforum | Fudforum | 3.0.9 |
References
- https://github.com/fuzzlove/FUDforum-XSS-RCEExploit, Third Party Advisory
- https://packetstormsecurity.com/files/155261/FUDForum-3.0.9-Code-Execution-Cross-Site-Scripting.htmlExploit, Third Party Advisory, VDB Entry
- https://github.com/fuzzlove/FUDforum-XSS-RCEExploit, Third Party Advisory
- https://packetstormsecurity.com/files/155261/FUDForum-3.0.9-Code-Execution-Cross-Site-Scripting.htmlExploit, Third Party Advisory, VDB Entry
Timeline
- Published
- Last Modified
- Status
- Modified
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