Auth bypass in Vowelweb Ibtana – Ecommerce Product Addons

CVE-2026-1984

The Ibtana – Ecommerce Product Addons plugin for WordPress is vulnerable to unauthorized post meta modification due to a missing capability check on the 'iepa_use_gt_editor' AJAX action in all versions up to, and including, 0.4.7.7. This makes it possible for authenticated attackers, with Subscriber-level access and above, to update or delete arbitrary post meta entries via the 'iepa_builder' meta key.

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 (33.2th percentile), scored .

Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 33rd percentile — 33.2% 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-2026-1984: held from 0.002 to 0.004.

EPSS over last 30 days · oldest: 0.002 · newest: 0.004 · change: +0.002

Affected products

Weakness classification (CWE)

References

Frequently asked questions

What is CVE-2026-1984?
CVE-2026-1984 is a medium-severity vulnerability in Vowelweb Ibtana – Ecommerce Product Addons, classified under Missing Authorization. CVSS score: 5.3/10. Published 2026-09-19.
How severe is CVE-2026-1984?
Medium severity. CVSS v3 base score is 5.3 out of 10.