Severity by source
CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:L/VI:L/VA:L/SC:N/SI:N/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
Requires low-privilege access to admin panel; SSRF impact limited to partial confidentiality, integrity, availability.
Primary rating from NVD.
CVSS VectorNVD
Lifecycle Timeline
7DescriptionCVE.org
A vulnerability classified as critical has been found in diyhi bbs up to 6.8. This affects the function getUrl of the file /admin/login of the component HTTP Header Handler. The manipulation of the argument Host leads to server-side request forgery. It is possible to initiate the attack remotely. The exploit has been disclosed to the public and may be used.
AnalysisAI
Server-side request forgery in diyhi bbs up to version 6.8 allows remote authenticated attackers with low privileges to manipulate the Host header via the /admin/login endpoint, enabling limited unauthorized access to internal resources. A public proof-of-concept exploit is available, but no active exploitation has been confirmed; EPSS score indicates a low probability of exploitation (0.08%).
Technical ContextAI
The vulnerability resides in the getUrl function within the /admin/login HTTP Header Handler of diyhi bbs. This server-side request forgery (CWE-918) arises from insufficient validation of the Host header. The affected product, identified by CPE cpe:2.3:a:diyhi:bbs:*:*:*:*:*:*:*:*, is a bulletin board system. Attackers can abuse the Host header to force the server to make unauthorized requests to internal or external services, potentially bypassing network restrictions.
RemediationAI
No vendor-released patch has been identified at the time of analysis. As a short-term mitigation, restrict access to the /admin endpoint to trusted IP addresses using network controls or application-level access rules. Deploy a web application firewall (WAF) to filter malicious Host header values. Disabling the affected feature may not be possible without source code changes. Note: IP restriction could hinder legitimate remote administration; consider using a VPN or SSL-based access.
Path traversal vulnerability in diyhi bbs 6.8 allows remote authenticated attackers to read or write arbitrary files via
A weakness has been identified in diyhi bbs up to 6.8. Rated medium severity (CVSS 5.3), this vulnerability is remotely
Same weakness CWE-918 – Server-Side Request Forgery (SSRF)
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External POC / Exploit Code
Leaving vuln.today
EUVD-2025-19325