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PatchSiren cyber security CVE debrief

CVE-2026-107422 axew3.com CVE debrief

A Cross-site Scripting (XSS) vulnerability exists in the WP w3all phpBB plugin for WordPress, affecting versions up to and including 3.1.0. This issue allows for Stored XSS, potentially enabling attackers to inject malicious scripts into web pages. Defenders should assess exposure and prioritize updating to a patched version. The CVE record and source item provide details on the vulnerability, including its existence in versions up to 3.1.0 of the WP w3all phpBB plugin. The vulnerability could allow attackers to inject malicious scripts into web pages viewed by other users, leading to unauthorized actions within the context of the web application.

Vendor
axew3.com
Product
WP w3all phpBB
CVSS
MEDIUM 6.5
CISA KEV
Not listed in stored evidence
Original CVE published
2026-10-14
Original CVE updated
2026-10-15
Advisory published
2026-10-14
Advisory updated
2026-10-15

Who should care

Defenders responsible for WordPress installations with the WP w3all phpBB plugin should assess exposure and prioritize updating to a patched version.

Why it matters

CVE-2026-107422 is a Cross-site Scripting (XSS) vulnerability in the WP w3all phpBB plugin for WordPress. Defenders should verify the plugin version and update if necessary to prevent potential malicious script injection.

  • An attacker could inject malicious scripts into web pages viewed by other users.
  • Successful exploitation could lead to unauthorized actions within the context of the web application.
  • Defenders need to verify if their installations are affected and update to a patched version.

Technical summary

The WP w3all phpBB plugin for WordPress is vulnerable to Cross-site Scripting (XSS), specifically Stored XSS, in versions up to and including 3.1.0. This vulnerability is identified as CVE-2026-107422. The vulnerability could allow attackers to inject malicious scripts into web pages viewed by other users, leading to unauthorized actions within the context of the web application. Defenders should prioritize verifying the version of the WP w3all phpBB plugin in use and updating to a patched version if necessary.

Defensive priority

Defenders should prioritize verifying the version of the WP w3all phpBB plugin in use and updating to a patched version if necessary.

Recommended defensive actions

  • Verify the version of the WP w3all phpBB plugin in use.
  • Update to a patched version if necessary.
  • Monitor for potential malicious activity.

Evidence notes

The CVE record and source item provide details on the vulnerability, including its existence in versions up to 3.1.0 of the WP w3all phpBB plugin. The vulnerability allows for Stored XSS, potentially enabling attackers to inject malicious scripts into web pages. Defenders should verify the plugin version and update if necessary to prevent potential malicious script injection. Evidence is limited to CVE Program and NVD details. No additional information is available on affected scope or

Sources and references

Verified primary and authoritative sources

  • CVE-2026-107422 CVE Program record

    Publisher, destination, and source semantics verified

    URL: https://www.cve.org/CVERecord?id=CVE-2026-107422

    CVE Program - Official CVE Program record with source-provided CVE metadata.

  • CVE-2026-107422 NVD vulnerability detail

    Publisher, destination, and source semantics verified

    URL: https://nvd.nist.gov/vuln/detail/CVE-2026-107422

    NIST National Vulnerability Database - Official NIST NVD detail page and source-specific vulnerability assessment.

Supplemental references

Methodology and review provenance

AI-assisted synthesis based on stored public vulnerability evidence. System validation, approval state, and publication status do not by themselves establish human review of this revision. PatchSiren helps prioritize defensive review and does not prove exposure or remediation on any system.