---
id: "CVE-2026-116211"
kind: "vulnerability"
aliases: ["CVE-2026-116211"]
title: "YesWiki: unescaped Bazar field lets anonymous users dump password hashes"
severity: "high"
cvss: 8.8
epss: null
exploited: false
status: "open"
category: "other"
products: []
ecosystems: []
tags: ["mysql", "other", "php", "self-hosted", "yeswiki"]
not_affected_if: ["version-4.7.0-or-later"]
published_at: "2026-10-25T14:17:02+00:00"
first_seen_at: "2026-10-25T14:41:23+00:00"
updated_at: "2026-10-25T14:42:08+00:00"
sources: [{"source": "nvd", "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-116211", "first_seen_at": "2026-10-25T14:41:23+00:00"}]
---

# YesWiki: unescaped Bazar field lets anonymous users dump password hashes

YesWiki versions from 4.5.0 before 4.7.0 build an INSERT statement from the date_maj_fiche field of a Bazar entry-creation request without escaping it. An unauthenticated attacker can inject a sub-SELECT against the wiki_users table and read password hashes.

_Summary, check and fix written by a model from the sources; labelled as such._

## How to check

- Check the installed YesWiki version in the wiki's version file or admin panel; versions `4.5.0` through `4.6.x` are in the affected range.
- unknown

## Fix

- Upgrade YesWiki to `4.7.0` or later.
- Until upgraded, unknown

## Timeline

- 2026-10-25T14:41:23+00:00 nvd https://nvd.nist.gov/vuln/detail/CVE-2026-116211

## From the sources

YesWiki 4.5.0 before 4.7.0 contains an SQL injection vulnerability in PageManager::save(), where the date_maj_fiche field of a Bazar entry-creation request is concatenated unescaped into an INSERT statement. Unauthenticated attackers on default installs can inject a sub-SELECT against wiki_users to exfiltrate password hashes.

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_Free to read at a human pace. An API with keys and an MCP server are in preparation; early access: hello@infrastack.ai_