What is CVE-2026-88998?

CVE-2026-88998 is a medium-severity vulnerability in Tickera, classified under Insufficient Verification of Data Authenticity. CVSS score: 5.3/10. Published 2026-10-14.

How severe is CVE-2026-88998?

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

Vulnerability in Tickera

CVE-2026-88998

The Tickera WordPress plugin before 3.6.0.4 does not correctly verify the integrity of incoming payment notifications, and the validated signature does not cover the order or the amount, allowing unauthenticated attackers to forge a payment confirmation and mark arbitrary orders as paid without paying.

Published 2026-10-14 · last modified 2026-10-14.

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

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.

Affected products

Tickera

Weakness classification (CWE)

CWE-345 — Insufficient Verification of Data Authenticity

References

wpscan.com/vulnerability/50fe4955-9193-4842-9ea6-1812d70d813e/ (technical-description, exploit, vdb-entry)

Frequently asked questions

What is CVE-2026-88998?: CVE-2026-88998 is a medium-severity vulnerability in Tickera, classified under Insufficient Verification of Data Authenticity. CVSS score: 5.3/10. Published 2026-10-14.
How severe is CVE-2026-88998?: Medium severity. CVSS v3 base score is 5.3 out of 10.