CVE-2023-6696
CVE-2023-6696 is a high-severity vulnerability in Sygnoos Popup Builder with a CVSS 3.x base score of 8.1. 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-862.
Key facts
- Severity: High (CVSS 3.x base score 8.1)
- EPSS exploit prediction: 0% (37th percentile)
- Actively exploited: Not listed in CISA KEV
- EU (EUVD) id: EUVD-2023-58917
- Weakness: CWE-862
- Affected product: Sygnoos Popup Builder
- Published:
- Last modified:
Description
The Popup Builder – Create highly converting, mobile friendly marketing popups. plugin for WordPress is vulnerable to unauthorized access of functionality due to a missing capability check on several functions in all versions up to, and including, 4.3.1. While some functions contain a nonce check, the nonce can be obtained from the profile page of a logged-in user. This allows subscribers to perform several actions including deleting subscribers and perform blind Server-Side Request Forgery.
Frequently asked questions
- What is CVE-2023-6696?
- The Popup Builder – Create highly converting, mobile friendly marketing popups. plugin for WordPress is vulnerable to unauthorized access of functionality due to a missing capability check on several functions in all versions up to, and including, 4.3.1. While some functions contain a nonce check, the nonce can be obtained from the profile page of a logged-in user. This allows subscribers to perform several actions including deleting subscribers and perform blind Server-Side Request Forgery.
- How severe is CVE-2023-6696?
- CVE-2023-6696 has a CVSS 3.x base score of 8.1, rated high severity. It is exploitable over network with low attack complexity, requires low privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability none.
- Is CVE-2023-6696 being actively exploited?
- It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (37th percentile), an estimate of the probability of exploitation in the next 30 days.
- What products are affected by CVE-2023-6696?
- CVE-2023-6696 affects Sygnoos Popup Builder. See the affected-products list for the exact vulnerable versions.
- How do I fix CVE-2023-6696?
- Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.
- Does CVE-2023-6696 have an EU (EUVD) identifier?
- Yes. CVE-2023-6696 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2023-58917.
- When was CVE-2023-6696 published?
- CVE-2023-6696 was published on 2024-06-15 and last updated on 2026-06-17.
References
- https://plugins.trac.wordpress.org/browser/popup-builder/tags/4.2.3/com/classes/Ajax.php
- https://plugins.trac.wordpress.org/changeset/3096000/popup-builder/trunk/com/classes/Ajax.php
- https://www.wordfence.com/threat-intel/vulnerabilities/id/9f86ec30-7a9d-4c36-8559-bde331c8b958?source=cve
Affected products (1)
- cpe:2.3:a:sygnoos:popup_builder:*:*:*:*:*:wordpress:*:*
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