What is the CVSS score of CVE-2023-31435?

CVE-2023-31435 has a CVSS 3.1 base score of 8.1 (High). CVSS vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:N. EPSS exploitation probability: 0.7%.

Is there a public PoC exploit available for CVE-2023-31435?

Yes, a public proof-of-concept exploit is available for CVE-2023-31435. Prioritise patching immediately. EPSS: 0.7%.

Evasys CVE-2023-31435

HIGH

Incorrect Authorization (CWE-863)

2023-05-02 cve@mitre.org

Authentication Bypass Evasys

8.1

CVSS 3.1 · NVD

Severity by source

NVD PRIMARY

8.1 HIGH

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

Primary rating from NVD · only source for this CVE.

CVSS VectorNVD

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

Attack Vector

Network

Attack Complexity

Low

Privileges Required

Low

User Interaction

None

Scope

Unchanged

Confidentiality

High

Integrity

High

Availability

None

Lifecycle Timeline

CVE Published

May 02, 2023 - 20:15 nvd

HIGH 8.1

DescriptionNVD

Multiple components (such as Onlinetemplate-Verwaltung, Liste aller Teilbereiche, Umfragen anzeigen, and questionnaire previews) in evasys before 8.2 Build 2286 and 9.x before 9.0 Build 2401 allow authenticated attackers to read and write to unauthorized data by accessing functions directly.

AnalysisAI

Multiple components (such as Onlinetemplate-Verwaltung, Liste aller Teilbereiche, Umfragen anzeigen, and questionnaire previews) in evasys before 8.2 Build 2286 and 9.x before 9.0 Build 2401 allow. Rated high severity (CVSS 8.1), this vulnerability is remotely exploitable, low attack complexity. Public exploit code available and no vendor patch available.

Technical ContextAI

This vulnerability is classified as Incorrect Authorization (CWE-863), which allows attackers to bypass authorization checks to access restricted resources. Multiple components (such as Onlinetemplate-Verwaltung, Liste aller Teilbereiche, Umfragen anzeigen, and questionnaire previews) in evasys before 8.2 Build 2286 and 9.x before 9.0 Build 2401 allow authenticated attackers to read and write to unauthorized data by accessing functions directly. Affected products include: Evasys. Version information: before 8.2.

RemediationAI

No vendor patch is available at time of analysis. Monitor vendor advisories for updates. Review and test authorization logic, implement consistent access control checks, use centralized authorization framework.