Auth bypass in Duplicate Post

CVE-2026-19077

The Duplicate Post WordPress plugin before 1.5.5 does not perform per-object authorisation checks in its bulk copy and delete operations, allowing any user whose role an administrator has granted Duplicate Post WordPress plugin before 1.5.5 access to permanently delete arbitrary posts on the site, including those belonging to other users.

Vulnerability class: IDOR (Insecure Direct Object Reference)

Published · last modified .

CVSS v3 metric

CVSS v3 base score 6.5 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:N/I:H/A:H.

EPSS exploit prediction

EPSS: 0.002 (14.4th percentile), scored .

Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 14th percentile — 14.4% 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-2026-19077: held from 0.002 to 0.002.

EPSS over last 30 days · oldest: 0.002 · newest: 0.002 · change: 0.000

Affected products

  • Duplicate Post — versions 0

Weakness classification (CWE)

References

Frequently asked questions

What is CVE-2026-19077?
CVE-2026-19077 is a medium-severity vulnerability in Duplicate Post, classified under Authorization Bypass Through User-Controlled Key. CVSS score: 6.5/10. Published 2026-08-10.
How severe is CVE-2026-19077?
Medium severity. CVSS v3 base score is 6.5 out of 10.