Description
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.
References (3)
Core 3
Core References
Exploit, Vendor Advisory x_refsource_confirm
https://github.com/Kovah/LinkAce/security/advisories/GHSA-473x-rmm6-mc8c
Patch x_refsource_misc
https://github.com/Kovah/LinkAce/commit/4e0b822163ccefc2640c283ae969a39e673a0619
Release Notes x_refsource_misc
http://github.com/Kovah/LinkAce/releases/tag/v2.4.0
Scores
CVSS v3
4.3
EPSS
0.0003
EPSS Percentile
8.2%
Attack Vector
NETWORK
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N
CISA SSVC
Vulnrichment
Exploitation
poc
Automatable
no
Technical Impact
partial
Details
CWE
CWE-918
Status
published
Products (1)
linkace/linkace
< 2.4.0
Published
Nov 04, 2025
Tracked Since
Feb 18, 2026