CVE-2026-9134

MEDIUMPre-NVD 6.46.4—
EchelonGraph scoreHIGH confidence

Score 6.4 from GitHub Security Advisory published 2026-06-13. 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 FooGallery plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the 'custom_attribute_key' shortcode parameter in versions up to, and including, 3.1.31 This is due to an incomplete JavaScript event handler blacklist in the foogallery_sanitize_javascript() function, which blocks only a subset of HTML event attributes (onmouseover, onmouseout, onpointerenter, onclick, onload, onchange, onerror) while permitting others such as 'onmouseenter', combined with the failure to escape the attribute key when building the gallery container HTML in foogallery_build_container_attributes_safe(). 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
10.3%
KEV
Not listed

Published

June 13, 2026

Last Modified

June 15, 2026

References (5)

Vendor Advisories for CVE-2026-9134(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 21× in last 7d / 71× 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. 2026-07-07 00:47 UTCEG score recompute
  2. 2026-07-07 00:47 UTCGHSA enrichment
  3. 2026-07-06 16:27 UTCEPSS rescore
  4. 2026-07-06 02:23 UTCEPSS rescore
  5. 2026-07-05 17:14 UTCEG score recompute
  6. 2026-07-05 17:14 UTCGHSA enrichment
  7. 2026-07-05 02:31 UTCEPSS rescore
  8. 2026-07-04 15:51 UTCEG score recompute
  9. 2026-07-04 15:51 UTCGHSA enrichment
  10. 2026-07-04 06:31 UTCEPSS rescore
  11. 2026-07-04 06:31 UTCEPSS rescore
  12. 2026-07-03 14:28 UTCEG score recompute
  13. 2026-07-03 14:28 UTCGHSA enrichment
  14. 2026-07-02 12:16 UTCEG score recompute
  15. 2026-07-02 12:16 UTCGHSA enrichment
  16. 2026-07-01 15:07 UTCEPSS rescore
  17. 2026-07-01 10:54 UTCEG score recompute
  18. 2026-07-01 10:54 UTCGHSA enrichment
  19. 2026-06-30 23:22 UTCEPSS rescore
  20. 2026-06-30 09:27 UTCEG score recompute
  21. 2026-06-30 09:27 UTCGHSA enrichment
  22. 2026-06-29 14:06 UTCEPSS rescore
  23. 2026-06-29 08:05 UTCEG score recompute
  24. 2026-06-29 08:04 UTCGHSA enrichment
  25. 2026-06-28 14:07 UTCEPSS rescore
Show 46 more
  1. 2026-06-28 06:36 UTCEG score recompute
  2. 2026-06-28 06:36 UTCGHSA enrichment
  3. 2026-06-28 04:56 UTCEPSS rescore
  4. 2026-06-27 05:13 UTCEG score recompute
  5. 2026-06-27 05:12 UTCGHSA enrichment
  6. 2026-06-27 03:08 UTCEPSS rescore
  7. 2026-06-26 03:51 UTCEG score recompute
  8. 2026-06-26 03:51 UTCGHSA enrichment
  9. 2026-06-25 13:50 UTCEPSS rescore
  10. 2026-06-25 02:29 UTCEG score recompute
  11. 2026-06-25 02:28 UTCGHSA enrichment
  12. 2026-06-24 14:05 UTCEPSS rescore
  13. 2026-06-24 01:06 UTCEG score recompute
  14. 2026-06-24 01:06 UTCGHSA enrichment
  15. 2026-06-23 21:33 UTCEPSS rescore
  16. 2026-06-22 23:40 UTCEG score recompute
  17. 2026-06-22 23:40 UTCGHSA enrichment
  18. 2026-06-22 14:25 UTCEPSS rescore
  19. 2026-06-21 22:17 UTCEG score recompute
  20. 2026-06-21 22:16 UTCGHSA enrichment
  21. 2026-06-21 14:56 UTCEPSS rescore
  22. 2026-06-21 01:59 UTCEPSS rescore
  23. 2026-06-20 20:19 UTCEG score recompute
  24. 2026-06-20 20:19 UTCGHSA enrichment
  25. 2026-06-19 19:26 UTCEPSS rescore
  26. 2026-06-19 16:21 UTCEG score recompute
  27. 2026-06-19 16:20 UTCGHSA enrichment
  28. 2026-06-18 17:52 UTCEPSS rescore
  29. 2026-06-18 14:45 UTCEG score recompute
  30. 2026-06-18 14:45 UTCGHSA enrichment
  31. 2026-06-17 17:53 UTCEPSS rescore
  32. 2026-06-17 13:15 UTCEG score recompute
  33. 2026-06-17 13:15 UTCGHSA enrichment
  34. 2026-06-16 17:53 UTCEPSS rescore
  35. 2026-06-16 11:53 UTCEG score recompute
  36. 2026-06-16 11:53 UTCGHSA enrichment
  37. 2026-06-15 17:49 UTCEPSS rescore
  38. 2026-06-15 17:49 UTCEPSS rescore
  39. 2026-06-15 10:31 UTCEG score recompute
  40. 2026-06-15 10:31 UTCGHSA enrichment
  41. 2026-06-14 23:18 UTCEPSS rescore
  42. 2026-06-14 09:07 UTCEG score recompute
  43. 2026-06-14 09:07 UTCGHSA enrichment
  44. 2026-06-13 23:00 UTCEPSS rescore
  45. 2026-06-13 07:44 UTCEG score recompute
  46. 2026-06-13 07:43 UTCNVD updatefirst tracked

Related CVEs(same CWE)

Frequently asked(5)

What is CVE-2026-9134?
CVE-2026-9134 is a medium vulnerability published on June 13, 2026. The FooGallery plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the 'customattributekey' shortcode parameter in versions up to, and including, 3.1.31 This is due to an incomplete JavaScript event handler blacklist in the foogallerysanitizejavascript() function, which blocks…
When was CVE-2026-9134 disclosed?
CVE-2026-9134 was first published in the National Vulnerability Database on June 13, 2026, with the most recent update on June 15, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2026-9134 actively exploited?
CVE-2026-9134 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 10.3% percentile likelihood of exploitation in the next 30 days — higher percentiles indicate greater predicted risk.
What is the CVSS score of CVE-2026-9134?
CVE-2026-9134 has a CVSS v3 base score of 6.4 (NVD).
How do I remediate CVE-2026-9134?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2026-9134, 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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