CVE-2026-1165
CVE-2026-1165 is a medium-severity vulnerability with a CVSS 3.x base score of 4.3. 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-352.
Key facts
- Severity: Medium (CVSS 3.x base score 4.3)
- EPSS exploit prediction: 0% (6th percentile)
- Actively exploited: Not listed in CISA KEV
- EU (EUVD) id: EUVD-2026-5054
- Weakness: CWE-352
- Published:
- Last modified:
Description
The Popup Box plugin for WordPress is vulnerable to Cross-Site Request Forgery in all versions up to, and including, 6.1.1. This is due to a flawed nonce implementation in the 'publish_unpublish_popupbox' function that verifies a self-created nonce rather than one submitted in the request. This makes it possible for unauthenticated attackers to change the publish status of popups via a forged request, granted they can trick a site administrator into performing an action such as clicking a link.
Frequently asked questions
- What is CVE-2026-1165?
- The Popup Box plugin for WordPress is vulnerable to Cross-Site Request Forgery in all versions up to, and including, 6.1.1. This is due to a flawed nonce implementation in the 'publish_unpublish_popupbox' function that verifies a self-created nonce rather than one submitted in the request. This makes it possible for unauthenticated attackers to change the publish status of popups via a forged request, granted they can trick a site administrator into performing an action such as clicking a link.
- How severe is CVE-2026-1165?
- CVE-2026-1165 has a CVSS 3.x base score of 4.3, rated medium severity. It is exploitable over network with low attack complexity, requires no privileges and user interaction. Impact on confidentiality is none, integrity low, and availability none.
- Is CVE-2026-1165 being actively exploited?
- It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (6th percentile), an estimate of the probability of exploitation in the next 30 days.
- How do I fix CVE-2026-1165?
- Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
- Does CVE-2026-1165 have an EU (EUVD) identifier?
- Yes. CVE-2026-1165 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2026-5054.
- When was CVE-2026-1165 published?
- CVE-2026-1165 was published on 2026-01-31 and last updated on 2026-06-17.
References
- https://plugins.trac.wordpress.org/browser/ays-popup-box/tags/6.1.0/admin/partials/ays-pb-admin-display.php#L22
- https://plugins.trac.wordpress.org/browser/ays-popup-box/tags/6.1.0/includes/lists/class-ays-pb-list-table.php#L701
- https://plugins.trac.wordpress.org/changeset?sfp_email=&sfph_mail=&reponame=&old=3439514@ays-popup-box/tags/6.1.1/&new=3444612@ays-popup-box/tags/6.1.2/
- https://www.wordfence.com/threat-intel/vulnerabilities/id/585a9eb4-f394-4cb2-9050-659171a994d9?source=cve
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