Cyber Resilience

CVE-2025-13221

Published
15 November 2025
Modified
15 April 2026
CVSS Score v4 5.5
Click a component to see what it means
Raw vectorCVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N/E:P/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 0.0036 29th percentile
Risk Priority 38 floored blend · peak EPSS

Summary

CVE-2025-13221 is a medium-severity Plaintext Storage of a Password (CWE-256) vulnerability in Notion (inferred from references). Its CVSS base score is 5.5 (Medium).

Operationally, exploitation aligns with the MITRE ATT&CK technique Credentials In Files (T1552.001); ranked at the 29th percentile by exploit likelihood (below the median); it is not currently listed in the CISA KEV catalog.

The strongest mitigations our analysis identified map to SC-28 (Protection of Information at Rest) — see the control section below for these in your framework.

OWASP Top 10 for Web (2025)

A06:2025 Insecure Design

EU & UK References

Vulnerability Data

A weakness has been identified in Intelbras UnniTI 24.07.11. The affected element is an unknown function of the file /xml/sistema/usuarios.xml. Executing manipulation of the argument Usuario/Senha can lead to unprotected storage of credentials. The attack can be executed remotely. The…

more

exploit has been made available to the public and could be exploited.

CWE(s)
CWE-255CWE-256

Related Threats

MITRE ATT&CK Enterprise Techniques

T1552.001 Credentials In Files Credential Access
Adversaries may search local file systems and remote file shares for files containing insecurely stored credentials.
attack.mitre.org →
T1552 Unsecured Credentials Credential Access
Adversaries may search compromised systems to find and obtain insecurely stored credentials.
attack.mitre.org →
Derived from this CVE’s CWE(s) via the direct CWE→ATT&CK cross-walk.

CVEs Like This One

CVE-2026-4243Shared CWE-255, CWE-256
CVE-2025-4286Shared CWE-255, CWE-256
CVE-2025-15128Shared CWE-255, CWE-256
CVE-2025-2355Shared CWE-255, CWE-256
CVE-2025-14183Shared CWE-255, CWE-256
CVE-2024-29978Shared CWE-256
CVE-2024-55026Shared CWE-256
CVE-2023-50956Shared CWE-256
CVE-2025-53662Shared CWE-256
CVE-2023-4984Shared CWE-256

Affected Assets

Notion
—
inferred from references and description; NVD did not file a CPE for this CVE

Mitigating Controls

Mitigating Controls (NIST 800-53 r5) AI

SC-28 Protection of Information at Rest good match

Requiring confidentiality protection of information at rest directly stops passwords from being stored in plaintext.

Mitigating Controls (NIST CSF 2.0) AI

Derived directly from the weakness types (CWEs) cited in the NVD entry via our AI-authored CWE→CSF cross-walk (authority under review) — links open the control.

PR.DS-01 mostly match
prevents

Encryption and hashing of data-at-rest directly prevent plaintext password storage in files.

PR.AA-01 partial match
prevents

Credential management practices normally include secure storage requirements for passwords.

PR.DS-10 partial match
prevents

Protecting data-in-use can limit exposure of passwords held in memory.

Mitigating Controls (ISO/IEC 27001:2022 Annex A) AI

Derived directly from the weakness types (CWEs) cited in the NVD entry via our AI-authored CWE→ISO cross-walk (authority under review) — links open the control.

A.5.17 Authentication information full match
degrades

Directly requires secure handling and protection of authentication information, preventing plaintext password storage.

A.8.24 Use of cryptography mostly match
prevents

Requires use of cryptography to protect sensitive data such as passwords at rest.

A.8.28 Secure coding partial match
prevents

Secure coding practices would prevent developers from writing code that stores passwords in plaintext.

A.8.5 Secure authentication partial match
degrades

Mandates secure authentication mechanisms that inherently require hashed or encrypted credentials rather than plaintext.

A.8.10 Information deletion none match
mitigates

Requires secure deletion of sensitive information, indirectly reducing exposure of stored plaintext passwords.

References