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PatchSiren cyber security CVE debrief

CVE-2026-9696 codename065 CVE debrief

The Download Manager plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the 'not_found' parameter in all versions up to, and including, 3.3.58 due to insufficient input sanitization and output escaping. This makes it possible for authenticated attackers, with Contributor-level access and above, to inject arbitrary web scripts in pages that will execute whenever a user accesses an injected page.

Vendor
codename065
Product
Download Manager
CVSS
MEDIUM 6.4
CISA KEV
Not listed in stored evidence
Original CVE published
2026-10-10
Original CVE updated
2026-10-10
Advisory published
2026-10-10
Advisory updated
2026-10-10

Who should care

Defenders responsible for WordPress sites using the Download Manager plugin should assess exposure and prioritize verification of the plugin version in use. They should also monitor for suspicious activity on their WordPress sites and implement additional security measures to prevent cross-site scripting attacks.

Why it matters

The Download Manager plugin for WordPress is vulnerable to Stored Cross-Site Scripting, allowing authenticated attackers to inject arbitrary web scripts.

  • Authenticated attackers with Contributor-level access and above can inject arbitrary web scripts
  • Injected scripts can execute whenever a user accesses an injected page
  • Defenders must verify the version of Download Manager in use and ensure it is up to date

Technical summary

The Download Manager plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the 'not_found' parameter in all versions up to, and including, 3.3.58 due to insufficient input sanitization and output escaping. This vulnerability allows authenticated attackers, with Contributor-level access and above, to inject arbitrary web scripts in pages that will execute whenever a user accesses an injected page. The vulnerability affects WordPress sites using the Download Manager plugin, and defenders should prioritize verifying the plugin version in use and ensuring it is up to date.

Defensive priority

Defenders should prioritize verifying the version of Download Manager in use and ensuring it is up to date, as well as monitoring for suspicious activity on their WordPress sites.

Recommended defensive actions

  • Verify the version of Download Manager in use and ensure it is up to date
  • Monitor for suspicious activity on WordPress sites
  • Implement additional security measures to prevent cross-site scripting attacks
  • 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
  • Track exceptions, retest remediated assets, and close the item only after evidence is documented
  • Confirm whether affected product deployments exist in managed environments and assign an owner for follow-up

Evidence notes

The CVE record and source item provide details on the vulnerability, including its description, CVSS score, and affected versions. Defenders should verify the version of Download Manager in use and ensure it is up to date. The vulnerability allows authenticated attackers with Contributor-level access and above to inject arbitrary web scripts. Evidence is limited to CVE and source-item details.

Sources and references

Verified primary and authoritative sources

  • CVE-2026-9696 CVE Program record

    Publisher, destination, and source semantics verified

    URL: https://www.cve.org/CVERecord?id=CVE-2026-9696

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

  • CVE-2026-9696 NVD vulnerability detail

    Publisher, destination, and source semantics verified

    URL: https://nvd.nist.gov/vuln/detail/CVE-2026-9696

    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.