What is CVE-2026-88421?

CVE-2026-88421 is a high-severity vulnerability in N/a, classified under Improper Access Control. CVSS score: 7.5/10. Published 2026-09-25.

How severe is CVE-2026-88421?

High severity. CVSS v3 base score is 7.5 out of 10.

Vulnerability in N/a

CVE-2026-88421

Incorrect access control in the BlogPage.get_entries() component of APSL puput v1.2.1 through v2.2.0 allows unauthenticated attackers to view restricted blog entries via the blog index, the tag, category, author and date archives, the sidebar widgets, or the RSS feed.

Published 2026-09-25 · last modified 2026-09-25.

CVSS v3 metric

CVSS v3 base score 7.5 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N.

EPSS exploit prediction

No EPSS score from FIRST.org yet. New CVEs usually get one within a few days; no score means no signal yet, not low risk. How EPSS works.

Weakness classification (CWE)

CWE-284 — Improper Access Control

References

gist.github.com/itsmohitnarayan/736225bd6cd79031a5dfbf56acdb14ae

Frequently asked questions

What is CVE-2026-88421?: CVE-2026-88421 is a high-severity vulnerability in N/a, classified under Improper Access Control. CVSS score: 7.5/10. Published 2026-09-25.
How severe is CVE-2026-88421?: High severity. CVSS v3 base score is 7.5 out of 10.