What is CVE-2026-39473?

CVE-2026-39473 is a medium-severity vulnerability in Pär Thernström Simple History, classified under Insertion of Sensitive Information into Sent Data. CVSS score: 5.3/10. Published 2026-04-08.

How severe is CVE-2026-39473?

Medium severity. CVSS v3 base score is 5.3 out of 10.

Vulnerability in Pär Thernström Simple History

CVE-2026-39473

Insertion of Sensitive Information Into Sent Data vulnerability in Pär Thernström Simple History simple-history allows Retrieve Embedded Sensitive Data.This issue affects Simple History: from n/a through <= 5.24.0.

EPSS: 0.000 (12.1th percentile) — read the EPSS interpretation.

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:L/I:N/A:N.

Affected products

Pär Thernström Simple History — versions 0

Weakness classification (CWE)

CWE-201 — Insertion of Sensitive Information into Sent Data

References

patchstack.com/database/Wordpress/Plugin/simple-history/vulnerability/wordpress… (vdb-entry)

Frequently asked questions

What is CVE-2026-39473?: CVE-2026-39473 is a medium-severity vulnerability in Pär Thernström Simple History, classified under Insertion of Sensitive Information into Sent Data. CVSS score: 5.3/10. Published 2026-04-08.
How severe is CVE-2026-39473?: Medium severity. CVSS v3 base score is 5.3 out of 10.