CVE-2026-104459CWE-918ssrf

CVE-2026-104459

Medium · published October 2, 2026

CVSS v3.1
6.5
EPSS
0%
Percentile
31.7
In the wild
Unconfirmed
What it is

YesWiki before 4.6.7 contains a server-side request forgery vulnerability in WebfingerService that allows unauthenticated attackers to trigger HTTPS requests to internal hosts. Attackers can POST a crafted actor_handle with a numeric host and port to the abonnements view to probe internal HTTPS services and ports.

The record
Technical detail
CVSS v3.1
6.5 · MEDIUM
Vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:L
CVSS v4.0
6.9 · CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:N/VA:L/SC:N/SI:N/SA:N
EPSS
0.00388 · 31.7th percentile
Weakness
CWE-918 · Server-Side Request Forgery (SSRF)
Published
2026-10-02T16:17Z
References (3)
https://github.com/YesWiki/yeswiki/security/advisories/GHSA-x4mq-qxvc-g82j · [email protected]https://www.vulncheck.com/advisories/yeswiki-before-4.6.7-ssrf-via-activitypub-webfinger-actor-handle · [email protected]https://github.com/YesWiki/yeswiki/security/advisories/GHSA-x4mq-qxvc-g82j · 134c704f-9b21-4f2e-91b3-4a467353bcc0
EPSS history
Timeline
  • 04 OCT 03:27Z
    EPSS moved — → 0%
    epss
  • 02 OCT 11:38Z
    YesWiki before 4.6.7 SSRF via ActivityPub WebFinger actor_handle
    cvelistv5