CVE-2026-56035
Deferred Deferred - Pending Action

Unauthenticated Multiple Vulnerabilities in BitFire

Publication date: 2026-06-26

Last updated on: 2026-06-26

Assigner: Patchstack

Description
Unauthenticated Multiple Vulnerabilities in BitFire Security <= 5.0.3 versions.

CVSS Scores

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Meta Information

Published
2026-06-26
Last Modified
2026-06-26
Generated
2026-07-16
AI Q&A
2026-06-26
EPSS Evaluated
2026-07-15
NVD
CVE-2026-56035
EUVD
EUVD-2026-39698

Affected Vendors & Products

Showing 1 associated CPE
Vendor Product Version / Range
patchstack bitfire_security_plugin to 5.0.3 (inc)

Helpful Resources

Exploitability

CWE
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KEV
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CWE ID Description
CWE-1284 The product receives input that is expected to specify a quantity (such as size or length), but it does not validate or incorrectly validates that the quantity has the required properties.

Attack-Flow Graph

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Executive Summary

The WordPress BitFire Security Plugin versions 5.0.3 and below contain multiple high-severity vulnerabilities, including an insecure design flaw classified under OWASP Top 10 A4. These vulnerabilities allow unauthenticated attackers to exploit the plugin without needing any privileges or user interaction.

Because of these flaws, attackers can launch mass campaigns targeting thousands of websites regardless of their size or popularity.

Impact Analysis

This vulnerability poses a high risk (CVSS score 8.6) as it allows unauthenticated attackers to compromise websites using the affected BitFire Security Plugin. The impact includes potential high confidentiality loss, limited integrity loss, and limited availability loss.

Exploitation could lead to unauthorized access, data breaches, or disruption of website services, affecting the security and trustworthiness of your website.

Compliance Impact

The vulnerability in the BitFire Security Plugin versions 5.0.3 and below is classified as high severity with a CVSS score of 8.6, indicating a significant risk of exploitation. Such vulnerabilities can lead to unauthorized access or data breaches, which may impact compliance with data protection regulations like GDPR and HIPAA by exposing sensitive information or compromising system integrity.

Because attackers could exploit these flaws in mass campaigns targeting thousands of websites, organizations using the affected plugin risk non-compliance with security requirements mandated by these standards if the vulnerability is not promptly addressed.

Updating to version 5.0.4 or applying mitigation measures is strongly advised to maintain compliance and reduce the risk of data breaches or unauthorized access.

Mitigation Strategies

Users of the WordPress BitFire Security Plugin versions 5.0.3 and below are strongly advised to update immediately to version 5.0.4, which patches the multiple high-severity vulnerabilities.

Alternatively, users can apply mitigation measures such as Patchstack's auto-update or vulnerability mitigation rules to prevent potential attacks.

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