What is the CVSS score of CVE-2026-25615?

CVE-2026-25615 has a CVSS 3.1 base score of 7.2 (High). CVSS vector: CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H. EPSS exploitation probability: 0.0%.

Which versions of Blesta are affected by CVE-2026-25615?

Blesta billing and automation platform versions 3.x through 5.x (before 5.13.3) contain a critical object injection vulnerability that could allow attackers to execute arbitrary code or compromise…

How to fix or mitigate CVE-2026-25615?

Within 24 hours: Identify all systems running Blesta 3.x-5.x and document versions; isolate affected systems from production networks if possible and restrict administrative access. Within 7 days: Monitor vendor communications for patch availability; implement network-based compensating controls (WAF rules blocking PHP object injection patterns, input validation enforcement). Within 30 days: Apply patch immediately upon release; conduct forensic review for evidence of exploitation; review and reset billing system credentials.

Blesta CVE-2026-25615

HIGH

Deserialization of Untrusted Data (CWE-502)

2026-02-03 cve@mitre.org

Deserialization Blesta

7.2

CVSS 3.1 · NVD

Severity by source

NVD PRIMARY

7.2 HIGH

AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H

Primary rating from NVD · only source for this CVE.

CVSS VectorNVD

CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H

Attack Vector

Network

Attack Complexity

Low

Privileges Required

High

User Interaction

None

Scope

Unchanged

Confidentiality

High

Integrity

High

Availability

High

Lifecycle Timeline

Analysis Generated

Mar 12, 2026 - 21:54 vuln.today

CVE Published

Feb 03, 2026 - 20:15 nvd

HIGH 7.2

DescriptionCVE.org

Blesta 3.x through 5.x before 5.13.3 allows object injection, aka CORE-5668.

AnalysisAI

Blesta 3.x through 5.x before 5.13.3 allows object injection, aka CORE-5668. [CVSS 7.2 HIGH]

Unlock full vulnerability intelligence

Risk assessment & exploitation conditions
Attack chain visualization
Remediation with exact patch versions
Threat intelligence from 22 sources
Personal watchlist & email alerts

Continue with Google Continue with GitHub

Free forever · No credit card required

Attack ChainAIDerived

Hypothetical attack flow derived from CVE metadata

Access

Authenticate as high-privilege admin user

Delivery

Craft malicious serialized PHP object

Exploit

Submit via vulnerable parameter

Execution

Trigger unserialization

Impact

Execute arbitrary code

Access

Authenticate as high-privilege admin user

Delivery

Craft malicious serialized PHP object

Exploit

Submit via vulnerable parameter

Execution

Trigger unserialization

Impact

Execute arbitrary code

Vulnerability AssessmentAI

Exploitation	Blesta versions 3.x through 5.x before 5.13.3 with high-privilege administrative account access required. … Additional conditions and limiting factors are described in the full assessment.
Risk Assessment	CVSS 7.2 (HIGH). … Full risk analysis with EPSS, KEV, and SSVC signal comparison available after sign-in.
Exploit Scenario	An attacker could exploit this vulnerability to compromise the affected system.
Remediation	Monitor vendor advisories for a patch. … Detailed patch versions, workarounds, and compensating controls in full report.

Recommended ActionAI

Within 24 hours: Identify all systems running Blesta 3.x-5.x and document versions; isolate affected systems from production networks if possible and restrict administrative access. …

Threat intelligence, references, and detailed analysis are available after sign-in.

CVE-2026-25615 vulnerability details – vuln.today

Back

Blesta CVE-2026-25615

Severity by source

CVSS VectorNVD

Lifecycle Timeline

DescriptionCVE.org

AnalysisAI

Unlock full vulnerability intelligence

Attack ChainAIDerived

Vulnerability AssessmentAI

Recommended ActionAI

Share

External POC / Exploit Code