CVE-2025-4102
CVE-2025-4102 is a high-severity vulnerability in Fastlinemedia Beaver Builder with a CVSS 3.x base score of 7.2. 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-434.
Key facts
- Severity: High (CVSS 3.x base score 7.2)
- EPSS exploit prediction: 1% (41st percentile)
- Actively exploited: Not listed in CISA KEV
- EU (EUVD) id: EUVD-2025-27983
- Weakness: CWE-434
- Affected product: Fastlinemedia Beaver Builder
- Published:
- Last modified:
Description
The Beaver Builder Plugin (Starter Version) plugin for WordPress is vulnerable to arbitrary file uploads due to missing file type validation in the 'save_enabled_icons' function in all versions up to, and including, 2.9.1. This makes it possible for authenticated attackers, with Administrator-level access and above, to upload arbitrary files on the affected site's server which may make remote code execution possible. The vulnerability was partially patched in version 2.9.1.
Frequently asked questions
- What is CVE-2025-4102?
- The Beaver Builder Plugin (Starter Version) plugin for WordPress is vulnerable to arbitrary file uploads due to missing file type validation in the 'save_enabled_icons' function in all versions up to, and including, 2.9.1. This makes it possible for authenticated attackers, with Administrator-level access and above, to upload arbitrary files on the affected site's server which may make remote code execution possible. The vulnerability was partially patched in version 2.9.1.
- How severe is CVE-2025-4102?
- CVE-2025-4102 has a CVSS 3.x base score of 7.2, rated high severity. It is exploitable over network with low attack complexity, requires high privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.
- Is CVE-2025-4102 being actively exploited?
- It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (41st percentile), an estimate of the probability of exploitation in the next 30 days.
- What products are affected by CVE-2025-4102?
- CVE-2025-4102 affects Fastlinemedia Beaver Builder. See the affected-products list for the exact vulnerable versions.
- How do I fix CVE-2025-4102?
- 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-2025-4102 have an EU (EUVD) identifier?
- Yes. CVE-2025-4102 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2025-27983.
- When was CVE-2025-4102 published?
- CVE-2025-4102 was published on 2025-06-20 and last updated on 2026-06-17.
References
- https://www.wordfence.com/threat-intel/vulnerabilities/id/2eb4608f-fa4f-444c-a857-c9059777a70b?source=cve
- https://www.wpbeaverbuilder.com/change-logs/?utm_medium=bb-lite&utm_source=repo-readme&utm_campaign=repo-changelog-page
Affected products (1)
- cpe:2.3:a:fastlinemedia:beaver_builder:*:*:*:*:lite:wordpress:*:*
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