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PatchSiren cyber security CVE debrief

CVE-2026-39517 A WP Life CVE debrief

CVE-2026-39517 is a MEDIUM severity DOM-Based XSS vulnerability in the Blog Filter plugin, affecting versions from n/a through <= 1.7.6. This vulnerability involves improper neutralization of input during web page generation, which can lead to potential DOM-Based XSS attacks. Users of Blog Filter plugin version 1.7.6 or earlier should prioritize patching this vulnerability to prevent potential attacks. The vulnerability has a CVSS score of 6.5 and is classified as Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting').

Vendor
A WP Life
Product
Blog Filter
CVSS
MEDIUM 6.5
CISA KEV
Not listed in stored evidence
Original CVE published
2026-04-08
Original CVE updated
2026-07-24
Advisory published
2026-04-08
Advisory updated
2026-07-24

Who should care

Users of Blog Filter plugin version 1.7.6 or earlier should prioritize patching this vulnerability to prevent potential DOM-Based XSS attacks. This includes operators, administrators, and security teams responsible for maintaining and securing the affected plugin. Additionally, vulnerability management teams should review the official advisory and plan vendor-supported updates or mitigations through normal change control where exposure is confirmed.

Technical summary

The CVE-2026-39517 vulnerability is classified as Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting'). It affects the Blog Filter plugin, with a CVSS score of 6.5 and a MEDIUM severity level. The vulnerability is exploitable through DOM-Based XSS, which involves improper neutralization of input during web page generation. Users of affected Blog Filter versions should prioritize patching to prevent potential DOM-Based XSS attacks.

Defensive priority

Patching is highly recommended for users of affected Blog Filter versions to prevent DOM-Based XSS attacks. This vulnerability has a MEDIUM severity level and a CVSS score of 6.5, indicating a moderate risk. Defenders should prioritize patching and review compensating controls for exposed systems while remediation is scheduled and verified.

Recommended defensive actions

  • Patch Blog Filter plugin to version greater than 1.7.6
  • Inventory and update affected plugins
  • Monitor for suspicious activity
  • Review compensating controls for exposed systems while remediation is scheduled and verified
  • Check relevant monitoring, detection, and logs for exposed assets that need extra review

Evidence notes

The CVE record was published on 2026-04-08T09:16:25.493Z and last modified on 2026-07-24T21:10:00.143Z. The NVD entry is currently Deferred. The Blog Filter plugin, which is affected by this vulnerability, is used for filtering blog content. Users should verify the plugin version and update if necessary. The CVE record provides limited information about the vulnerability, and defenders should review the official advisory for more details.

Sources and references

Verified primary and authoritative sources

  • CVE-2026-39517 CVE Program record

    Publisher, destination, and source semantics verified

    URL: https://www.cve.org/CVERecord?id=CVE-2026-39517

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

  • CVE-2026-39517 NVD vulnerability detail

    Publisher, destination, and source semantics verified

    URL: https://nvd.nist.gov/vuln/detail/CVE-2026-39517

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

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.