LinkAce: Limited Server-Side Request Forgery (SSRF) in Keyword Fetching Functionality
Key facts
- Attack vector
- Network
- Privileges required
- Low
- User interaction
- None
- Attack complexity
- High
- Attack requirements
- None
- Impact type
- —
- Confidentiality · integrity · availability
- Low · None · Low
- Fix status
- Fixed
Attack profile from CVSS 4.0 · CNA. Fix status from CNA.
Summary
LinkAce is a self-hosted archive to collect website links. In versions 2.3.0 and below, the htmlKeywordsFromUrl function in the FetchController class accepts user-provided URLs and makes HTTP requests to them without validating that the destination is not an internal or private network resource. This Server-Side Request Forgery (SSRF) vulnerability allows authenticated attackers to use the application server to perform port scanning and service discovery on internal networks. Practical impact is very limited because the function only extracts content from HTML meta keywords tags, which prevents meaningful data exfiltration from databases, APIs, or cloud metadata endpoints. This issue is fixed in version 2.4.0.
Why it matters now
SSVC decision points
CISA ADP · SSVC 2.0.3
- Exploitation
- Poc
- Automatable
- No
- Technical impact
- Partial
The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.
Affected products
Remediation
- Fix · CNA LinkAce (Kovah) Fixed in 2.4.0
Timeline
- 2026-10-02 Threatist record created from CVE-2025-62719
References
More Kovah Linkace vulnerabilities
- TI-2026-21865 LinkAce: Stored XSS in Atom Feed via CDATA Escape in List Description CVSS 4.0HIGH 8.7
- TI-2025-38912 LinkAce: Stored XSS Vulnerability in Link Title Field Through Social Media Sharing Feature CVSS 4.0HIGH 8.7
- TI-2025-33730 LinkAce has a Stored One Click XSS vulnerability CVSS 4.0HIGH 8.4
- TI-2026-26303 LinkAce's SSRF protection can be bypassed via internal hostname resolution in LinkAce CVSS 3.1HIGH 8.5
- TI-2026-23778 LinkAce affected by SSRF via link creation: NoPrivateIpRule not applied to LinkStoreRequest CVSS 3.1HIGH 7.7
- TI-2025-36976 LinkAce Vulnerable to Stored XSS on the Audit Page CVSS 3.1HIGH 7.3
Sources
This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences