Missing authentication for critical function and Improper validation of integrity check value vulnerability in Sipay
Source GCVE Database
Not known to be exploited · CVSS 9.1 Critical : upgrade to 26.9.1 as a priority.
Data as of 11 Nov 2026, 16:20 UTC
Thin evidence
One scorer or none| CNA (TR-CERT) | CVSS 3.1 | 9.1 |
|---|
- Patch
- Available – fixed in 26.9.1
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:NExploitation evidence
Disclosed: evidence found.
CVE published 11 Nov 2026
Detectable: no evidence on record.
No public nuclei template indexed
Weaponized: no evidence on record.
No public exploit code indexed in Metasploit or Exploit-DB
Exploited in the wildExploited: no evidence on record.
Not in CISA KEV and no source reports exploitation
Observed by OffSeq MirageSeen by Mirage: no evidence on record.
No attack traffic recorded by OffSeq Mirage sensors
A missing step is not evidence of safety. Sources: cve.org (opens in a new tab), the Metasploit, Exploit-DB and nuclei-templates index as of 11 Nov 2026.
What to do
Upgrade WooCommerce Virtual POS Module to 26.9.1.
Affected software
| Product | Affected | Fixed in |
|---|---|---|
| Sipay Electronic Money and Payment Services Inc.WooCommerce Virtual POS Module | Affected
| Fixed in
|
AI-suggested
If you cannot patch yet, users should consider restricting network access to the affected module and monitor for suspicious activity related to API message manipulation.
Description
A critical vulnerability in Sipay Electronic Money and Payment Services Inc.'s WooCommerce Virtual POS Module versions from 26.8.3 up to but not including 26.9.1 allows authentication bypass and manipulation of application API messages via man-in-the-middle attacks. This is due to missing authentication for critical functions and improper validation of integrity check values.