Vulnerability · Published Oct 2, 2026 · Assigned by VulnCheck

CVE-2026-104457YesWiki before 4.6.7 SQL Injection via filtertags filterN parameter

High 8.6

In plain English

A high-severity SQL injection in yeswiki from YesWiki. Proof-of-concept exploit code is public. The chance it is exploited in the next 30 days is estimated at 0.4% (higher than 29% of all known vulnerabilities).

Severity (CVSS 3.1)8.6High

Exploit odds (30 days)0.4%top 71.0% of all CVEs

Exploited in the wildNo reportsCISA SSVC: poc

Attack toolingNoneno public tooling known

Official description

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.

Affected products (as reported)

Vendor	Product	Versions
YesWiki	yeswiki	0 – before 4.6.7

Weakness: CWE-89 · Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:L/A:L

References

GitHub Security Advisory (GHSA-p87r-f4x4-8r4g) vendor-advisory
VulnCheck Advisory: YesWiki before 4.6.7 SQL Injection via filtertags filterN parameter third-party-advisory