Privilege escalation in Wpematico Rss Feed Fetcher

CVE-2026-89001

The WPeMatico RSS Feed Fetcher WordPress plugin before 2.8.27 does not verify that a user running a feed campaign is permitted to publish content or to attribute posts to another account, allowing users with contributor-level access and above to publish posts live and set any registered user, including an administrator, as the post author.

Vulnerability class: Privilege Escalation

Published · last modified .

CVSS v3 metric

CVSS v3 base score 4.9 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:N/I:H/A:N.

EPSS exploit prediction

EPSS: 0.002 (8.4th percentile), scored .

Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 8th percentile — 8.4% 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-2026-89001: held from 0.002 to 0.002.

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

Affected products

  • Wpematico Rss Feed Fetcher

Weakness classification (CWE)

References

Frequently asked questions

What is CVE-2026-89001?
CVE-2026-89001 is a medium-severity vulnerability in Wpematico Rss Feed Fetcher, classified under Improper Privilege Management. CVSS score: 4.9/10. Published 2026-09-27.
How severe is CVE-2026-89001?
Medium severity. CVSS v3 base score is 4.9 out of 10.