CVE-2026-8039

MEDIUMPre-NVD 6.46.4—
EchelonGraph scoreHIGH confidence

Score 6.4 from GitHub Security Advisory published 2026-06-18. a secondary CVSS source baseline 6.4; sources differ by 0.0.

Triggered by: GitHub Security Advisory CVSS
Sources: epss, ghsa, secondary
Trending — 3 sources updated this week
6.4
EchelonGraph verdictMonitorLow exploitation likelihood right now — keep watching.
  • Lower severity and no public exploit yet
CISA-KEV: Not listedEPSS: 0%CVSS: 6.4Exploit: NoneExposed: 0

No vendor fix yet — apply a workaround or compensating control (WAF / firewall / segmentation) and watch for a patch.

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.

CVSS v3
6.4
EG Score
6.4(high)
EPSS
8.5%
KEV
Not listed

Published

June 18, 2026

Last Modified

June 18, 2026

References (3)

Vendor Advisories for CVE-2026-8039(1)

These vendors published their own advisory mentioning this CVE — often with vendor-specific remediation steps + affected product lists not in NVD.

Weakness Classification(1)

MITRE Common Weakness Enumeration — the root-cause categories this CVE belongs to.

Data Freshness Timeline

(refreshed 24× in last 7d / 60× in last 30d)

Each row is a source pipeline that fetched or updated this CVE on that date, with what changed. For example, "NVD update" means NVD published or revised its analysis for this CVE; "MITRE cvelistV5" means we ingested or refreshed it from the CNA feed. Most recent first.

  1. 2026-07-06 21:41 UTCEG score recompute
  2. 2026-07-06 21:41 UTCGHSA enrichment
  3. 2026-07-06 16:27 UTCEPSS rescore
  4. 2026-07-06 16:27 UTCEPSS rescore
  5. 2026-07-06 02:23 UTCEPSS rescore
  6. 2026-07-06 02:23 UTCEPSS rescore
  7. 2026-07-05 20:44 UTCEG score recompute
  8. 2026-07-05 20:44 UTCGHSA enrichment
  9. 2026-07-05 02:31 UTCEPSS rescore
  10. 2026-07-05 02:30 UTCEPSS rescore
  11. 2026-07-04 20:19 UTCEG score recompute
  12. 2026-07-04 20:19 UTCGHSA enrichment
  13. 2026-07-04 06:31 UTCEPSS rescore
  14. 2026-07-04 06:31 UTCEPSS rescore
  15. 2026-07-03 19:54 UTCEG score recompute
  16. 2026-07-03 19:54 UTCGHSA enrichment
  17. 2026-07-02 19:32 UTCEG score recompute
  18. 2026-07-02 19:31 UTCGHSA enrichment
  19. 2026-07-01 19:08 UTCEG score recompute
  20. 2026-07-01 19:08 UTCGHSA enrichment
  21. 2026-07-01 15:07 UTCEPSS rescore
  22. 2026-06-30 23:22 UTCEPSS rescore
  23. 2026-06-30 18:40 UTCEG score recompute
  24. 2026-06-30 18:40 UTCGHSA enrichment
  25. 2026-06-29 18:17 UTCEG score recompute
Show 35 more
  1. 2026-06-29 18:17 UTCGHSA enrichment
  2. 2026-06-29 14:06 UTCEPSS rescore
  3. 2026-06-28 17:52 UTCEG score recompute
  4. 2026-06-28 17:52 UTCGHSA enrichment
  5. 2026-06-28 14:07 UTCEPSS rescore
  6. 2026-06-28 04:56 UTCEPSS rescore
  7. 2026-06-27 17:30 UTCEG score recompute
  8. 2026-06-27 17:30 UTCGHSA enrichment
  9. 2026-06-27 03:08 UTCEPSS rescore
  10. 2026-06-26 17:06 UTCEG score recompute
  11. 2026-06-26 17:06 UTCGHSA enrichment
  12. 2026-06-25 16:43 UTCEG score recompute
  13. 2026-06-25 16:43 UTCGHSA enrichment
  14. 2026-06-25 13:50 UTCEPSS rescore
  15. 2026-06-24 16:20 UTCEG score recompute
  16. 2026-06-24 16:19 UTCGHSA enrichment
  17. 2026-06-24 14:05 UTCEPSS rescore
  18. 2026-06-23 21:33 UTCEPSS rescore
  19. 2026-06-23 15:57 UTCEG score recompute
  20. 2026-06-23 15:56 UTCGHSA enrichment
  21. 2026-06-22 15:33 UTCEG score recompute
  22. 2026-06-22 15:33 UTCGHSA enrichment
  23. 2026-06-22 14:25 UTCEPSS rescore
  24. 2026-06-21 15:08 UTCEG score recompute
  25. 2026-06-21 15:08 UTCGHSA enrichment
  26. 2026-06-21 14:56 UTCEPSS rescore
  27. 2026-06-21 01:59 UTCEPSS rescore
  28. 2026-06-20 14:43 UTCEG score recompute
  29. 2026-06-20 14:43 UTCGHSA enrichment
  30. 2026-06-19 19:26 UTCEPSS rescore
  31. 2026-06-19 14:17 UTCEG score recompute
  32. 2026-06-19 14:17 UTCGHSA enrichment
  33. 2026-06-18 17:52 UTCEPSS rescore
  34. 2026-06-18 13:53 UTCEG score recompute
  35. 2026-06-18 13:52 UTCNVD updatefirst tracked

Related CVEs(same CWE)

Frequently asked(5)

What is CVE-2026-8039?
CVE-2026-8039 is a medium vulnerability published on June 18, 2026. 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…
When was CVE-2026-8039 disclosed?
CVE-2026-8039 was first published in the National Vulnerability Database on June 18, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2026-8039 actively exploited?
CVE-2026-8039 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 8.5% percentile likelihood of exploitation in the next 30 days — higher percentiles indicate greater predicted risk.
What is the CVSS score of CVE-2026-8039?
CVE-2026-8039 has a CVSS v3 base score of 6.4 (NVD).
How do I remediate CVE-2026-8039?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2026-8039, EchelonGraph cross-links them in the Vendor Advisories panel below — those typically contain the canonical remediation steps, fixed version numbers, and any vendor-specific mitigations.

Dependency Blast Radius

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