Cyber Resilience

CVE-2025-13787

MediumPublic PoC

Published: 30 November 2025

Published
30 November 2025
Modified
04 December 2025
KEV Added
Patch
CVSS Score v4 5.3 CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:N/VI:L/VA:L/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X
EPSS Score 0.0006 18.6th percentile
Risk Priority 11 60% EPSS · 20% KEV · 20% CVSS

Summary

CVE-2025-13787 is a medium-severity Incorrect Privilege Assignment (CWE-266) vulnerability in Zentao Zentao. Its CVSS base score is 5.3 (Medium).

Operationally, exploitation aligns with the MITRE ATT&CK technique Exploitation for Privilege Escalation (T1068); ranked at the 18.6th percentile by exploit likelihood (below the median); it is not currently listed in the CISA KEV catalog; a public proof-of-concept is referenced.

EU & UK References

Vulnerability details

A flaw has been found in ZenTao up to 21.7.6-8564. The affected element is the function file::delete of the file module/file/control.php of the component File Handler. Executing manipulation of the argument fileID can lead to improper privilege management. It is…

more

possible to launch the attack remotely. Upgrading to version 21.7.7 is sufficient to fix this issue. You should upgrade the affected component.

CWE(s)

Related Threats

MITRE ATT&CK Enterprise TechniquesAI

T1068 Exploitation for Privilege Escalation Privilege Escalation
Adversaries may exploit software vulnerabilities in an attempt to elevate privileges.
T1070.004 File Deletion Stealth
Adversaries may delete files left behind by the actions of their intrusion activity.
Why these techniques?

The vulnerability enables horizontal privilege escalation via exploitation of improper authorization checks (T1068), allowing arbitrary file deletion for indicator removal/evasion (T1070.004) or disruptive impact (T1107).

Affected Assets

zentao
zentao
≤ 21.7.7

Mitigating Controls

Likely Mitigating Controls AI

Per-CVE control mapping for this CVE has not run yet; the list below is derived from the weakness types (CWEs) cited in the NVD entry.

addresses: CWE-269 CWE-266

Policy addresses roles, responsibilities, and privilege management to prevent improper privilege assignments.

addresses: CWE-269 CWE-266

Access supervision ensures privileges are assigned and managed without improper escalation or retention.

addresses: CWE-269 CWE-266

Assigning group/role memberships and access authorizations (privileges) while reviewing accounts addresses improper privilege management.

addresses: CWE-266 CWE-269

The control requires explicit definition of separated access authorizations, making incorrect privilege assignments that bundle conflicting duties harder to implement.

addresses: CWE-269 CWE-266

Implements core proper privilege management by restricting to only required rights.

addresses: CWE-269

Enforces proper privilege management by requiring all decisions through the verified reference monitor.

addresses: CWE-269

Policy requires training on privilege management and least privilege, making it harder to exploit improper privilege management weaknesses.

addresses: CWE-269

Training covers proper privilege management practices, making incorrect privilege assignments less likely.

References