SQL Injection in yeswiki/yeswiki (CVE-2026-46670)
Summary
SQL injection in yeswiki/yeswiki (CVE-2026-46670). Successful exploitation can lead to full system takeover. Exploitable via INSERT. Mitigation: upgrade to 4.6.4 or later.
Original description
The description as published by the source.
Summary
An unauthenticated SQL injection in the Bazar form-import path (FormManager::create()) allows any unauthenticated visitor of a default YesWiki install to inject arbitrary SQL into an INSERT statement and read the full database, including yeswiki_users.password hashes. Present in 4.6.1 / 4.6.2 / current doryphore-dev; analyzed against upstream commit 1f485c049db030b94c047ec219e63534ac81142e.
Details
Sink is at FormManager::create() (function at L232), unquoted concatenation of bn_id_nature into the INSERT VALUES list at https://github.com/YesWiki/yeswiki/blob/1f485c049db030b94c047ec219e63534ac81142e/tools/bazar/services/FormManager.php#L258
Reachability is unauthenticated.
PoC
- Clone the repo (test was done on 1f485c049db030b94c047ec219e63534ac81142e)
- Bring up the service using docker:
cd docker && docker compose build && docker compose up - Go to
https://localhost:8085 - Go through the installation
- Run the POC:
yeswiki_sqli_poc.py
Impact
Sql injection.
An attacker can dump the whole db, including usernames, emails, and hashed passwords.
More details
Sample http request (copied from burp):
POST /?BazaR&vue=formulaire HTTP/1.1
Accept-Encoding: gzip, deflate, br
Content-Length: 353
Host: localhost:8085
User-Agent: Python-urllib/3.13
Content-Type: application/x-www-form-urlencoded
Connection: keep-alive
imported-form%5B7791000%2BASCII%…
Source: GitHub Security Advisories (Global) NVD GitHub Advisory
Auto-generated summary
Assembled by SecPulse from the source data (CVSS, CWE, affected versions) using templates — no AI involved. Check the original description and references below for exact details.
A vulnerability tracked as CVE-2026-46670 has been found in yeswiki/yeswiki.
Attackers can target a specific entry point like INSERT over the network to misuse the product.
Successful exploitation can lead to full system takeover. CVSS score: 9.8/10.
What to do: upgrade yeswiki/yeswiki to 4.6.4 or later.
If unsure, ask your IT team or search "yeswiki/yeswiki CVE-2026-46670" on the vendor's site.
CVE-2026-46670 (yeswiki/yeswiki) — CWE-89 / CVSS v3 9.8
Attack vector: remote (network-reachable) / unauthenticated / no user interaction
Attack surface: INSERT / yeswiki_users.password / bn_id_nature
Patched: 4.6.4 — apply immediately
Plan: 1) Audit SBOM/dependencies, 2) Stage→prod upgrade, 3) Add WAF/proxy monitoring on affected endpoints, 4) Hunt IOCs in logs.
Refs: see the GHSA / vendor advisory / patched release linked on this page.
SQL injection (CWE-89) exists in yeswiki/yeswiki. Attackers reach the vulnerable code path via INSERT without authentication.
Check the vendor advisory for the affected versions of yeswiki/yeswiki. Attack surface: INSERT / yeswiki_users.password / bn_id_nature.
Severity: Critical (CVSS 9.8/10). Successful exploitation can lead to full system takeover.
Update to 4.6.4.
Until the patch is applied: disable the affected feature, apply WAF rules, or restrict access via network ACLs.
Search webserver/proxy logs for unusual request patterns matching this CVE's known IOCs. Run grep -r 'yeswiki/yeswiki' . against your dependency files (package-lock.json, requirements.txt, go.sum) to find affected services.
Response actions
Concrete steps and command examples for SOC/SRE teams to execute in order
-
1Identify exposure identify
grep -r 'yeswiki/yeswiki' . | grep -v node_modulesリポジトリと本番環境の依存ファイル (package-lock.json / requirements.txt / go.sum / Gemfile.lock 等) で
yeswiki/yeswikiを grep し、稼働しているサービス・バージョンを把握する。 -
2Apply patch patch
Upgrade yeswiki/yeswiki to 4.6.4ステージング環境で 4.6.4 に上げて回帰テスト → 本番反映。回帰テストはアプリの主要ハッピーパスを含めること。
-
3Post-deployment verification verify
Confirm patched version is live in productionパッチ適用後、ステージングで PoC または同等の悪用パターンを再現して脆弱性が閉じたことを確認。本番ではアクセスログ・WAF でアラート再発が無いか継続監視。
Affected packages
References
- package github.com
- web github.com
- web github.com