User Information Handler Vulnerability in kalyan02 NanoCMS
CVE-2026-1978

6.9MEDIUM

Key Information:

Vendor

Kalyan02

Status
Nanocms
Vendor
CVE Published:
6 February 2026

Badges

👾 Exploit Exists🟡 Public PoC

What is CVE-2026-1978?

A vulnerability exists in kalyan02 NanoCMS up to version 0.4, specifically within the User Information Handler component. This flaw allows unauthorized manipulation of the file /data/pagesdata.txt, resulting in direct access to sensitive data. The exploitation of this vulnerability can be initiated remotely, exposing the application to potential attacks. It is crucial for users to review and update configuration settings to mitigate the associated risks.

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Affected Version(s)

NanoCMS 0.1

NanoCMS 0.2

NanoCMS 0.3

Exploit Proof of Concept (PoC)

PoC code is written by security researchers to demonstrate the vulnerability can be exploited. PoC code is also a key component for weaponization which could lead to ransomware.

CVE-2026-1978 - Proof of Concept

References

https://vuldb.com/?id.344500
vdb-entry
https://vuldb.com/?ctiid.344500
signaturepermissions-required
https://vuldb.com/?submit.743260
third-party-advisory

CVSS V4

Score:
6.9
Severity:
MEDIUM
Confidentiality:
Low
Integrity:
None
Availability:
None
Attack Vector:
Network
Attack Complexity:
Low
Attack Required:
None
Privileges Required:
Undefined
User Interaction:
None

Timeline

  • 🟡

    Public PoC available

  • 👾

    Exploit known to exist

  • Vulnerability published

  • Vulnerability Reserved

Credit

g111 (VulDB User)
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