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PatchSiren cyber security CVE debrief

CVE-2026-108487 Hossni Mubarak CVE debrief

A Cross Site Scripting (XSS) vulnerability exists in the WordPress Books Gallery plugin versions up to 4.8.4. This issue allows for Stored XSS, potentially enabling attackers to inject malicious scripts into web pages. The vulnerability, identified as CVE-2026-108487, is a result of improper neutralization of input during web page generation. Defenders and administrators using the Books Gallery plugin in their WordPress environments should assess exposure and prioritize updating to version 4.8.5 or later. The CVE record and source item provide details on the vulnerability, including its existence in versions up to 4.8.4 of the Books Gallery plugin and a fix in version 4.8.5. It is

Vendor
Hossni Mubarak
Product
Books Gallery
CVSS
MEDIUM 6.5
CISA KEV
Not listed in stored evidence
Original CVE published
2026-10-13
Original CVE updated
2026-10-13
Advisory published
2026-10-13
Advisory updated
2026-10-13

Who should care

Defenders and administrators using the Books Gallery plugin in their WordPress environments should assess exposure and prioritize updating to version 4.8.5 or later.

Why it matters

CVE-2026-108487 is a Cross Site Scripting (XSS) vulnerability in the WordPress Books Gallery plugin versions up to 4.8.4, allowing for Stored XSS. Defenders should prioritize verifying and updating the plugin to version 4.8.5 or later, and assess exposure in their environments.

  • Potential injection of malicious scripts into web pages
  • Possible security issues due to Stored XSS vulnerability
  • Need for verification and update of the Books Gallery plugin

Technical summary

The Books Gallery plugin for WordPress, versions up to 4.8.4, is vulnerable to Stored Cross Site Scripting (XSS). This vulnerability, identified as CVE-2026-108487, allows attackers to inject malicious scripts into web pages, potentially leading to security issues.

Defensive priority

Defenders should prioritize verifying and updating the Books Gallery plugin to version 4.8.5 or later, and assess exposure in their environments.

Recommended defensive actions

  • Verify and update the Books Gallery plugin to version 4.8.5 or later
  • Assess exposure in environments using the Books Gallery plugin
  • Monitor for potential malicious activity related to this vulnerability

Evidence notes

The CVE record and source item provide details on the vulnerability, including its existence in versions up to 4.8.4 of the Books Gallery plugin and a fix in version 4.8.5.

Sources and references

Verified primary and authoritative sources

  • CVE-2026-108487 CVE Program record

    Publisher, destination, and source semantics verified

    URL: https://www.cve.org/CVERecord?id=CVE-2026-108487

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

  • CVE-2026-108487 NVD vulnerability detail

    Publisher, destination, and source semantics verified

    URL: https://nvd.nist.gov/vuln/detail/CVE-2026-108487

    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.