CVE-2026-25616
Unknown Unknown - Not Provided

Input Validation Flaw in Blesta 3.x-5.13.3 Risks Data Integrity

Publication date: 2026-02-03

Last updated on: 2026-02-18

Assigner: MITRE

Description
Blesta 3.x through 5.x before 5.13.3 mishandles input validation, aka CORE-5665.

CVSS Scores

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Meta Information

Published
2026-02-03
Last Modified
2026-02-18
Generated
2026-07-06
AI Q&A
2026-02-04
EPSS Evaluated
2026-07-05
NVD
CVE-2026-25616

Affected Vendors & Products

Showing 1 associated CPE
Vendor Product Version / Range
phillipsdata blesta From 3.2.0 (inc) to 5.13.2 (exc)

Helpful Resources

Exploitability

CWE
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KEV
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CWE ID Description
CWE-79 The product does not neutralize or incorrectly neutralizes user-controllable input before it is placed in output that is used as a web page that is served to other users.

Attack-Flow Graph

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Executive Summary

This vulnerability affects Blesta versions 3.x through 5.x before 5.13.3 and is related to improper input validation. It is identified as CORE-5665. Improper input validation means that the software does not correctly check or sanitize user inputs, which can lead to unexpected behavior or security issues.

Impact Analysis

The vulnerability has a CVSS v3.1 base score of 4.7, indicating a medium severity. It can be exploited remotely over the network with high attack complexity and requires no privileges but user interaction. The impact includes a partial loss of confidentiality and integrity, but no impact on availability. This means an attacker could potentially access or alter some data without authorization.

Compliance Impact

I don't know

Detection Guidance

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Mitigation Strategies

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Executive Summary

This vulnerability affects Blesta versions 3.x through 5.x before 5.13.3 and is related to improper input validation. It is identified as CORE-5665. Improper input validation means that the software does not correctly check or sanitize user inputs, which can lead to unexpected behavior or security issues.

Impact Analysis

The vulnerability has a CVSS v3.1 base score of 4.7, indicating a medium severity. It can be exploited remotely over a network with high attack complexity and requires no privileges but does require user interaction. The impact includes a partial loss of confidentiality and integrity, but no impact on availability. This means an attacker could potentially access or modify some data without authorization.

Compliance Impact

I don't know

Detection Guidance

I don't know

Mitigation Strategies

I don't know

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