VulnerabilityModified
CVE-2019-18839
FUDForum 3.0.9 is vulnerable to Stored XSS via the nlogin parameter.
CRITICAL 9.0EPSS 5.44%
Does this matter?
High impact if exploited, but EPSS currently rates exploitation as unlikely (5.44%). Schedule it in the normal patch cycle and watch for a rise in EPSS or a public exploit.
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.
- CVSS 3.1
- 9.0 CRITICALCVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:H/I:H/A:H
- EPSS
- 5.44% probability · 92th percentile
- CISA KEV
- Not listed
- Weakness
- CWE-78, CWE-79
- Affected
- fudforum/fudforum
- Source
- cve@mitre.org
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
Source: NVD record, EPSS from FIRST.org, KEV from CISA. Refreshed daily.