CVE-2026-0909
CVE-2026-0909 is a medium-severity vulnerability with a CVSS 3.x base score of 5.3. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-639.
Key facts
- Severity: Medium (CVSS 3.x base score 5.3)
- EPSS exploit prediction: 0% (26th percentile)
- Actively exploited: Not listed in CISA KEV
- EU (EUVD) id: EUVD-2026-5173
- Weakness: CWE-639
- Published:
- Last modified:
Description
The WP ULike plugin for WordPress is vulnerable to Insecure Direct Object Reference in all versions up to, and including, 4.8.3.1. This is due to the `wp_ulike_delete_history_api` AJAX action not verifying that the log entry being deleted belongs to the current user. This makes it possible for authenticated attackers, with Subscriber-level access and above (granted the 'stats' capability is assigned to their role), to delete arbitrary log entries belonging to other users via the 'id' parameter.
Frequently asked questions
- What is CVE-2026-0909?
- The WP ULike plugin for WordPress is vulnerable to Insecure Direct Object Reference in all versions up to, and including, 4.8.3.1. This is due to the `wp_ulike_delete_history_api` AJAX action not verifying that the log entry being deleted belongs to the current user. This makes it possible for authenticated attackers, with Subscriber-level access and above (granted the 'stats' capability is assigned to their role), to delete arbitrary log entries belonging to other users via the 'id' parameter.
- How severe is CVE-2026-0909?
- CVE-2026-0909 has a CVSS 3.x base score of 5.3, rated medium severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is none, integrity low, and availability none.
- Is CVE-2026-0909 being actively exploited?
- It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (26th percentile), an estimate of the probability of exploitation in the next 30 days.
- How do I fix CVE-2026-0909?
- Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
- Does CVE-2026-0909 have an EU (EUVD) identifier?
- Yes. CVE-2026-0909 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2026-5173.
- When was CVE-2026-0909 published?
- CVE-2026-0909 was published on 2026-02-03 and last updated on 2026-06-17.
References
- https://plugins.trac.wordpress.org/browser/wp-ulike/tags/4.8.3.1/admin/admin-ajax.php#L94
- https://plugins.trac.wordpress.org/browser/wp-ulike/trunk/admin/admin-ajax.php#L94
- https://plugins.trac.wordpress.org/changeset/3451296/wp-ulike/trunk/admin/admin-ajax.php
- https://www.wordfence.com/threat-intel/vulnerabilities/id/bee2e520-46cc-4b54-9849-fafb9b37ba19?source=cve
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