PatchSiren

PatchSiren cyber security CVE debrief

CVE-2026-8039 dijitul CVE debrief

The Fancy Testimonials plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the 'author' shortcode attribute in the 'testimonial' shortcode in all versions up to, and including, 1.0 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 has a CVSS score of 6.4 and a severity of MEDIUM.

Vendor
dijitul
Product
Fancy Testimonials
CVSS
MEDIUM 6.4
CISA KEV
Not listed in stored evidence
Original CVE published
2026-06-18
Original CVE updated
2026-06-18
Advisory published
2026-06-18
Advisory updated
2026-06-18

Who should care

Authenticated attackers with Contributor-level access and above can inject arbitrary web scripts in pages that will execute whenever a user accesses an injected page. This vulnerability affects users of the Fancy Testimonials plugin for WordPress, particularly those with Contributor-level access and above.

Technical summary

The Fancy Testimonials plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the 'author' shortcode attribute in the 'testimonial' shortcode in all versions up to, and including, 1.0 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. The vulnerability has a CVSS score of 6.4 and a severity of MEDIUM.

Defensive priority

Medium

Recommended defensive actions

  • Apply the vendor's official patch or upgrade to a version that addresses this vulnerability.
  • Restrict access to the plugin's settings and functionality to trusted users only.
  • Monitor for suspicious activity and implement Content Security Policy (CSP) to mitigate XSS 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 was published on 2026-06-18T13:25:44.517Z and was last modified on 2026-06-18T15:23:56.087Z. The NVD entry is currently Deferred. The Fancy Testimonials plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the 'author' shortcode attribute in the 'testimonial' shortcode in all versions up to, and including, 1.0 due to insufficient input sanitization and output escaping. This information is based on the CVE record and NVD entry.

Sources and references

Verified primary and authoritative sources

  • CVE-2026-8039 CVE Program record

    Publisher, destination, and source semantics verified

    URL: https://www.cve.org/CVERecord?id=CVE-2026-8039

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

  • CVE-2026-8039 NVD vulnerability detail

    Publisher, destination, and source semantics verified

    URL: https://nvd.nist.gov/vuln/detail/CVE-2026-8039

    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.