Vulnerability · Published Oct 3, 2026 · Assigned by WPScan

CVE-2026-91078TillKit < 1.0.5 - Unauthenticated POS Takeover via Hard-Coded Default Manager PIN

High 8.2

In plain English

A high-severity improper authentication in TillKit from Unknown. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 0.2% (higher than 9% of all known vulnerabilities).

Severity (CVSS 3.1)8.2High

Exploit odds (30 days)0.2%top 91.0% of all CVEs

Exploited in the wildNo reportsCISA SSVC: none

Attack toolingNoneno public tooling known

Official description

The TillKit WordPress plugin before 1.0.5 does not require the hard-coded, publicly known PIN of the privileged POS account it creates on activation to be changed before use, and it authenticates its public POS login endpoint on that PIN alone with no identity or capability check, allowing unauthenticated attackers to obtain a privileged POS session and thereby read customer and site-user personal data and modify store data.

Affected products (as reported)

Vendor	Product	Versions
Unknown	TillKit	0 – before 1.0.5

Weakness: CWE-287 · Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:H/A:N

References

https://wpscan.com/vulnerability/7ab037d6-c670-4eaf-be0d-11cc9e20b18e/ exploit, vdb-entry, technical-description