SQL Injection in Yeswiki
CVE-2026-104457
YesWiki before 4.6.7 contains an SQL injection vulnerability in the Bazar filtertags action, which wraps unescaped filterN attribute tokens in quotes and concatenates them into a raw tags.value IN (...) clause. Unauthenticated attackers on default installs can save filtertags markup in a page with a trailing-backslash token that breaks quote parity under MySQL backslash escaping. This lets them inject a five-column UNION subquery to read arbitrary table data such as password hashes.
Vulnerability class: SQL Injection
Published · last modified .
CVSS v3 metric
CVSS v3 base score 8.6 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:L/A:L.
EPSS exploit prediction
No EPSS score from FIRST.org yet. New CVEs usually get one within a few days; no score means no signal yet, not low risk. How EPSS works.
Affected products
Weakness classification (CWE)
References
- github.com/YesWiki/yeswiki/security/advisories/GHSA-p87r-f4x4-8r4g (vendor-advisory)
- www.vulncheck.com/advisories/yeswiki-before-4.6.7-sql-injection-via-filtertags-… (third-party-advisory)
Frequently asked questions
- What is CVE-2026-104457?
- CVE-2026-104457 is a high-severity vulnerability in Yeswiki, classified under SQL Injection. CVSS score: 8.6/10. Published 2026-10-02.
- How severe is CVE-2026-104457?
- High severity. CVSS v3 base score is 8.6 out of 10.