--- title: "CVE-2026-104463: YesWiki - Server-Side Request Forgery" description: "YesWiki < 4.6.7 contains a server-side request forgery caused by signed Follow activities sent to the public forms actor inbox route, letting unauthenticated attackers trigger server requests to internal hosts, exploit requires crafted signed requests." url: https://panop.io/threat-heartbeat/CVE-2026-104463/ --- # CVE-2026-104463 YesWiki - Server-Side Request Forgery YesWiki < 4.6.7 contains a server-side request forgery caused by signed Follow activities sent to the public forms actor inbox route, letting unauthenticated attackers trigger server requests to internal hosts, exploit requires crafted signed requests. CVSS base score 7.0 /10 High CISA KEV Not listed Public exploit None known Authentication Not required EPSS 0.25% chance of exploitation in 30 days [View the NVD record ↗](https://nvd.nist.gov/vuln/detail/CVE-2026-104463) ## Details Type Server-Side Request Forgery Impact Server Side Request Forgery CVSS vector CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:L/A:L Published 2 October 2026 Updated 15 October 2026 Weakness [CWE-918](https://cwe.mitre.org/data/definitions/918.html) ## Vendor fix Update to version 4.6.7 or later. Patching closes this CVE. It does not tell you which of your systems run the affected version, or what else is exposed alongside them. ## References - [https://nvd.nist.gov/vuln/detail/CVE-2026-104463](https://nvd.nist.gov/vuln/detail/CVE-2026-104463) - [https://github.com/YesWiki/yeswiki/security/advisories/GHSA-x623-wwf6-f6wp](https://github.com/YesWiki/yeswiki/security/advisories/GHSA-x623-wwf6-f6wp) - [https://www.vulncheck.com/advisories/yeswiki-before-4.6.7-unauthenticated-ssrf-via-activitypub-inbox](https://www.vulncheck.com/advisories/yeswiki-before-4.6.7-unauthenticated-ssrf-via-activitypub-inbox) [← All CVEs](https://panop.io/threat-heartbeat/) ## What this record can't tell you - Whether you run the affected software, and where - Whether an attacker can actually reach and exploit it - The misconfigurations that never get a CVE number - What it would cost the business, ranked into what to fix first Panop answers these inside your environment, for this CVE and every other finding. [Book a demo](https://panop.io/demo)