CVE-2026-104462 YesWiki before 4.6.7 SQL Injection via nuagetag tags parameter
Attackers with page-write access can inject SQL via the nuagetag parameter to exfiltrate password hashes and arbitrary table data.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2026-104462?
CVE-2026-104462 is a high-severity SQL injection vulnerability in yeswiki, published on 2 Oct 2026. An attacker can exploit it over the internet without logging in, with no action from the victim.
Official description
YesWiki before 4.6.7 contains an SQL injection vulnerability in the Bazar nuagetag action, which concatenates the unescaped tags attribute into a raw SQL IN clause. Attackers with page-write access (unauthenticated on default installs) can embed a nuagetag tag ending in a backslash to break quote parity and inject a UNION subquery, exfiltrating password hashes and arbitrary table data.
Weakness: CWE-89
Which versions are affected by CVE-2026-104462?
How do I fix CVE-2026-104462?
No fix has been published for CVE-2026-104462 yet. Limit exposure of the affected software until one is available.
Use parameterised queries everywhere and never build SQL by joining strings. Upgrade affected software first; a web application firewall only buys time. More about SQL injection.
Is CVE-2026-104462 being exploited?
It is not confirmed as exploited in the wild, but public exploit code for CVE-2026-104462 exists.
Sources
Also known as GHSA-mvpf-2445-p988, GHSA-p9rm-p6pp-8m8c.