Auth bypass in Schemaapp Schema App Structured Data

CVE-2023-44258

Missing Authorization vulnerability in vberkel Schema App Structured Data schema-app-structured-data-for-schemaorg allows Exploiting Incorrectly Configured Access Control Security Levels.This issue affects Schema App Structured Data: from n/a through <= 1.23.1.

Vulnerability class: Broken Access Control

Published · last modified .

CVSS v3 metric

CVSS v3 base score 5.3 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N.

EPSS exploit prediction

EPSS: 0.004 (28.5th percentile), scored .

Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 28th percentile — 28.5% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS trend (30 days)EPSS over the last 30 days for CVE-2023-44258: held from 0.004 to 0.004.

EPSS over last 30 days · oldest: 0.004 · newest: 0.004 · change: 0.000

Affected products

Weakness classification (CWE)

Public proof-of-concept exploits

References

Frequently asked questions

What is CVE-2023-44258?
CVE-2023-44258 is a medium-severity vulnerability in Schemaapp Schema App Structured Data, classified under Missing Authorization. CVSS score: 5.3/10. Published 2025-01-02.
How severe is CVE-2023-44258?
Medium severity. CVSS v3 base score is 5.3 out of 10.
Is CVE-2023-44258 known to be exploited?
1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.