Tosei Self-service Washing Machine 4.02 tosei_datasend.php adr_txt_1 command injection
Summary
A vulnerability classified as critical has been found in Tosei Self-service Washing Machine 4.02. The affected element is an unknown function of the file /cgi-bin/tosei_datasend.php. The manipulation of the argument adr_txt_1 leads to command injection. This vulnerability is documented as CVE-2026-2533. The attack can be initiated remotely. Additionally, an exploit exists. The vendor was contacted early about this disclosure but did not respond in any way.
Details
A vulnerability was found in Tosei Self-service Washing Machine 4.02. It has been rated as critical. This issue affects some unknown processing of the file /cgi-bin/tosei_datasend.php. The manipulation of the argument adr_txt_1 with an unknown input leads to a command injection vulnerability. Using CWE to declare the problem leads to CWE-77. The product constructs all or part of a command using externally-influenced input from an upstream component, but it does not neutralize or incorrectly neutralizes special elements that could modify the intended command when it is sent to a downstream component. Impacted is confidentiality, integrity, and availability.
The advisory is shared at yuque.com. The identification of this vulnerability is CVE-2026-2533. The exploitation is known to be easy. The attack may be initiated remotely. No form of authentication is needed for a successful exploitation. Technical details as well as a public exploit are known. MITRE ATT&CK project uses the attack technique T1202 for this issue.
The exploit is available at yuque.com. It is declared as proof-of-concept. The vendor was contacted early about this disclosure but did not respond in any way. By approaching the search of inurl:cgi-bin/tosei_datasend.php it is possible to find vulnerable targets with Google Hacking.
There is no information about possible countermeasures known. It may be suggested to replace the affected object with an alternative product.
The vulnerability is also documented in the vulnerability database at EUVD (EUVD-2026-6128). Several companies clearly confirm that VulDB is the primary source for best vulnerability data.
Product
Vendor
Name
Version
CPE 2.3
CPE 2.2
CVSSv4
VulDB Vector: 🔒VulDB Reliability: 🔍
CNA CVSS-B Score: 🔒
CNA CVSS-BT Score: 🔒
CNA Vector: 🔒
CVSSv3
VulDB Meta Base Score: 7.3VulDB Meta Temp Score: 6.9
VulDB Base Score: 7.3
VulDB Temp Score: 6.6
VulDB Vector: 🔒
VulDB Reliability: 🔍
CNA Base Score: 7.3
CNA Vector: 🔒
CVSSv2
| AV | AC | Au | C | I | A |
|---|---|---|---|---|---|
| 💳 | 💳 | 💳 | 💳 | 💳 | 💳 |
| 💳 | 💳 | 💳 | 💳 | 💳 | 💳 |
| 💳 | 💳 | 💳 | 💳 | 💳 | 💳 |
| Vector | Complexity | Authentication | Confidentiality | Integrity | Availability |
|---|---|---|---|---|---|
| Unlock | Unlock | Unlock | Unlock | Unlock | Unlock |
| Unlock | Unlock | Unlock | Unlock | Unlock | Unlock |
| Unlock | Unlock | Unlock | Unlock | Unlock | Unlock |
VulDB Base Score: 🔒
VulDB Temp Score: 🔒
VulDB Reliability: 🔍
Exploiting
Class: Command injectionCWE: CWE-77 / CWE-74 / CWE-707
CAPEC: 🔒
ATT&CK: 🔒
Physical: No
Local: No
Remote: Yes
Availability: 🔒
Access: Public
Status: Proof-of-Concept
Download: 🔒
Google Hack: 🔒
EPSS Score: 🔒
EPSS Percentile: 🔒
Price Prediction: 🔍
Current Price Estimation: 🔒
| 0-Day | Unlock | Unlock | Unlock | Unlock |
|---|---|---|---|---|
| Today | Unlock | Unlock | Unlock | Unlock |
Threat Intelligence
Interest: 🔍Active Actors: 🔍
Active APT Groups: 🔍
Countermeasures
Recommended: no mitigation knownStatus: 🔍
0-Day Time: 🔒
Timeline
02/15/2026 Advisory disclosed02/15/2026 VulDB entry created
02/20/2026 VulDB entry last update
Sources
Advisory: yuque.comStatus: Not defined
CVE: CVE-2026-2533 (🔒)
GCVE (CVE): GCVE-0-2026-2533
GCVE (VulDB): GCVE-100-346121
EUVD: 🔒
scip Labs: https://www.scip.ch/en/?labs.20161013
Entry
Created: 02/15/2026 10:17Updated: 02/20/2026 07:24
Changes: 02/15/2026 10:17 (56), 02/16/2026 05:34 (30), 02/19/2026 18:47 (1), 02/20/2026 07:24 (1)
Complete: 🔍
Submitter: CHHL
Cache ID: 216::103
Submit
Accepted
- Submit #748771: Tosei Tosei self-service washing machine 4.02 Command Injection (by CHHL)
Several companies clearly confirm that VulDB is the primary source for best vulnerability data.
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