SQL Injection Vulnerability in YesWiki Affects User Data Security
CVE-2026-104462

8.8HIGH

Key Information:

Vendor

Yeswiki

Status
Yeswiki
Vendor
CVE Published:
2 October 2026

What is CVE-2026-104462?

YesWiki versions prior to 4.6.7 possess an SQL injection vulnerability in the nuagetag action. This flaw arises due to the unescaped concatenation of tags attributes into a raw SQL IN clause, allowing attackers with page-write access (often unauthenticated in default installations) to manipulate the input. By embedding a nuagetag tag that ends with a backslash, an attacker can disrupt quote integrity, enabling them to execute a UNION subquery that can exfiltrate password hashes and other sensitive data from the database.

Affected Version(s)

yeswiki 0 < 4.6.7

yeswiki 4.6.7

References

https://github.com/YesWiki/yeswiki/security/advisories/GH...
vendor-advisory
https://www.vulncheck.com/advisories/yeswiki-before-4.6.7...
third-party-advisory

CVSS V4

Score:
8.8
Severity:
HIGH
Confidentiality:
High
Integrity:
Low
Availability:
Low
Attack Vector:
Network
Attack Complexity:
Low
Attack Required:
None
Privileges Required:
Undefined
User Interaction:
None

Timeline

  • Vulnerability published

  • Vulnerability Reserved

Credit

manus-use
.