CVE-2026-124018 Gutenverse Form WordPress Plugin < 3.2.2 CSV Formula Injection via Form Submission

5.3 mediumEPSS 0.7%

Medium (5.3) in jegstudio gutenverse form – contact form builder, block form & booking form. EPSS 0.7% estimated probability of exploitation activity in the next 30 days.

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Gutenverse Form plugin for WordPress before 3.2.2 contains a CSV formula injection vulnerability that allows unauthenticated attackers to inject spreadsheet formula-trigger characters by submitting free-text field values to the public form-submit REST route, which sanitizes input with sanitize_text_field() without stripping characters such as =, +, @, or a leading minus. Attackers can store malicious formulas in entry-data post meta that are later exported unneutralized via fputcsv() or esc_html() in the CSV export functions, causing the formula to execute when an administrator opens the exported file, enabling data exfiltration to an attacker-controlled URL or command execution on the administrator's workstation.

Severity

CVSS 4.0

5.3 medium

CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:P/VC:N/VI:N/VA:N/SC:L/SI:L/SA:L

CVSS 3.1

7.1 high

CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:L

EPSS: 0.7% estimated probability of exploitation activity in the next 30 days; 52nd percentile. Scored 2026-11-13. A forecast for this CVE across the internet, not for your own systems.
CISA's assessment (SSVC): Exploitation: none · Automatable: yes · Technical impact: partial, assessed 2026-11-12. From CISA's Vulnrichment in the CVE List: whether it is exploited, whether exploiting it can be automated, and how much control it gives.
CWE: CWE-1236 Improper Neutralization of Formula Elements in a CSV File
Published: 2026-11-12 14:17 UTC
Modified: 2026-11-12 21:36 UTC
Assigned by: VulnCheck (CNA)
NVD analysis: Deferred: the NVD does not plan to analyze it
Record from: the NVD, synced 2026-11-12 21:59 UTC

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Affected

jegstudio:gutenverse form – contact form builder, block form & booking form

Versions

From the CNA's record in the CVE List.

Product	Affected
Jegstudio Gutenverse Form – Contact Form Builder, Block Form & Booking Form	before 3.2.2

History

2026-11-12 The NVD deferred its analysis

Changes since this site first stored the record. The same for every record: /api/public/changes.

References

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