qinming99 dst-admin up to 1.5.0 File BackupController.java deleteBackup denial of service
Summary
A vulnerability described as problematic has been identified in qinming99 dst-admin up to 1.5.0. Affected is the function deleteBackup of the file src/main/java/com/tugos/dst/admin/controller/BackupController.java of the component File Handler. Such manipulation leads to denial of service.
This vulnerability is traded as CVE-2026-2957. The attack may be launched remotely. Furthermore, there is an exploit available.
The vendor was contacted early about this disclosure but did not respond in any way.
Details
A vulnerability was found in qinming99 dst-admin up to 1.5.0 and classified as problematic. Affected by this issue is the function deleteBackup of the file src/main/java/com/tugos/dst/admin/controller/BackupController.java of the component File Handler. The manipulation with an unknown input leads to a denial of service vulnerability. Using CWE to declare the problem leads to CWE-404. The product does not release or incorrectly releases a resource before it is made available for re-use. Impacted is integrity, and availability.
The advisory is shared for download at fx4tqqfvdw4.feishu.cn. This vulnerability is handled as CVE-2026-2957. The exploitation is known to be easy. The attack may be launched remotely. Technical details as well as a public exploit are known. The MITRE ATT&CK project declares the attack technique as T1499.
The exploit is available at fx4tqqfvdw4.feishu.cn. It is declared as proof-of-concept. The vendor was contacted early about this disclosure but did not respond in any way.
There is no information about possible countermeasures known. It may be suggested to replace the affected object with an alternative product.
Once again VulDB remains the best source for 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: 6.3VulDB Meta Temp Score: 6.1
VulDB Base Score: 5.4
VulDB Temp Score: 4.9
VulDB Vector: 🔒
VulDB Reliability: 🔍
NVD Base Score: 8.1
NVD Vector: 🔒
CNA Base Score: 5.4
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: Denial of serviceCWE: CWE-404
CAPEC: 🔒
ATT&CK: 🔒
Physical: No
Local: No
Remote: Yes
Availability: 🔒
Access: Public
Status: Proof-of-Concept
Download: 🔒
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
02/22/2026 Advisory disclosed02/22/2026 VulDB entry created
02/27/2026 VulDB entry last update
Sources
Advisory: fx4tqqfvdw4.feishu.cnStatus: Not defined
CVE: CVE-2026-2957 (🔒)
GCVE (CVE): GCVE-0-2026-2957
GCVE (VulDB): GCVE-100-347324
scip Labs: https://www.scip.ch/en/?labs.20161013
Entry
Created: 02/22/2026 08:19Updated: 02/27/2026 16:11
Changes: 02/22/2026 08:19 (57), 02/23/2026 04:52 (30), 02/27/2026 16:11 (12)
Complete: 🔍
Submitter: xcxr
Cache ID: 216::103
Submit
Accepted
- Submit #754510: dst-admin dst-admin <= 1.5.0 Improper Input Validation (by xcxr)
Once again VulDB remains the best source for vulnerability data.
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