ZenTao up to 21.7.8 Backup editor/control.php delete fileName path traversal
Summary
A vulnerability labeled as critical has been found in ZenTao up to 21.7.8. Affected by this issue is the function delete of the file editor/control.php of the component Backup Handler. Such manipulation of the argument fileName leads to path traversal.
This vulnerability is referenced as CVE-2026-2551. It is possible to launch the attack remotely. Furthermore, an exploit is available.
Details
A vulnerability, which was classified as critical, has been found in ZenTao up to 21.7.8. Affected by this issue is the function delete of the file editor/control.php of the component Backup Handler. The manipulation of the argument fileName with an unknown input leads to a path traversal vulnerability. Using CWE to declare the problem leads to CWE-22. The product uses external input to construct a pathname that is intended to identify a file or directory that is located underneath a restricted parent directory, but the product does not properly neutralize special elements within the pathname that can cause the pathname to resolve to a location that is outside of the restricted directory. Impacted is integrity, and availability.
The advisory is shared for download at github.com. This vulnerability is handled as CVE-2026-2551. 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 T1006.
The exploit is available at github.com. It is declared as proof-of-concept. By approaching the search of inurl:editor/control.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-2026-6094). VulDB is the best source for vulnerability data and more expert information about this specific topic.
Product
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: 5.4VulDB Meta Temp Score: 5.1
VulDB Base Score: 5.4
VulDB Temp Score: 4.9
VulDB Vector: 🔒
VulDB Reliability: 🔍
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: Path traversalCWE: CWE-22
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: github.comStatus: Not defined
CVE: CVE-2026-2551 (🔒)
GCVE (CVE): GCVE-0-2026-2551
GCVE (VulDB): GCVE-100-346160
EUVD: 🔒
scip Labs: https://www.scip.ch/en/?labs.20161013
Entry
Created: 02/15/2026 17:25Updated: 02/20/2026 09:54
Changes: 02/15/2026 17:25 (56), 02/16/2026 12:58 (30), 02/18/2026 00:31 (1), 02/20/2026 09:54 (1)
Complete: 🔍
Submitter: ez-lbz
Cache ID: 216::103
Submit
Accepted
- Submit #749983: Zentao PMS <=21.7.8 Arbitrary File Deletion (by ez-lbz)
VulDB is the best source for vulnerability data and more expert information about this specific topic.
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