CVE-2026-78139

MEDIUMCVSS 4.3/10EPSS 0.15%

Last modified

CVE-2026-78139 is a medium-severity vulnerability rated 4.3/10 on the CVSS scale. The Notifima WordPress plugin before 3.1.4 does not verify that the caller owns the subscription being modified on one of its REST endpoints in all versions up to, and including, 3.1.3, allowing authenticated attackers with Subscriber-level access to unsubscribe arbitrary customers from product stock-alert notifications.. EPSS estimates a 0.15% chance of exploitation in the next 30 days.

Description

The Notifima WordPress plugin before 3.1.4 does not verify that the caller owns the subscription being modified on one of its REST endpoints in all versions up to, and including, 3.1.3, allowing authenticated attackers with Subscriber-level access to unsubscribe arbitrary customers from product stock-alert notifications.

Metrics

EPSS Probability
0.15%

4.7th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

Affected Software

Source: CNA advisory (CVE.org). NVD analysis pending.

VendorProductVersions
UnknownNotifima< 3.1.4

References

Timeline

Published
Last Modified
Status
Deferred

Frequently Asked Questions

What is CVE-2026-78139?
The Notifima WordPress plugin before 3.1.4 does not verify that the caller owns the subscription being modified on one of its REST endpoints in all versions up to, and including, 3.1.3, allowing authenticated attackers with Subscriber-level access to unsubscribe arbitrary customers from product stock-alert notifications.
How severe is CVE-2026-78139?
CVE-2026-78139 has a CVSS score of 4.3/10 (MEDIUM severity). The EPSS model estimates a 0.15% probability of exploitation in the next 30 days.
How do I fix CVE-2026-78139?
Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

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Source: NVD / NIST