CVE-2026-8689

MEDIUMNVD 4.34.3—
EchelonGraph scoreMEDIUM confidence

Score 4.3 from GitHub Security Advisory published 2026-05-28. NVD baseline CVSS 4.3; sources differ by 0.0.

Triggered by: GitHub Security Advisory CVSS
Sources: epss, ghsa, nvd
Trending — 3 sources updated this week
4.3
EchelonGraph verdictMonitorLow exploitation likelihood right now — keep watching.
  • Lower severity and no public exploit yet
CISA-KEV: Not listedEPSS: 0%CVSS: 4.3Exploit: NoneExposed: 0

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

The Visualizer: Tables and Charts Manager for WordPress plugin for WordPress is vulnerable to Missing Authorization in all versions up to, and including, 3.11.14. This is due to a missing capability check on the renderChartPages() and uploadData() functions, where the wp_ajax_visualizer-create-chart and wp_ajax_visualizer-edit-chart AJAX actions invoke renderChartPages() without any current_user_can() check, and wp_ajax_visualizer-upload-data invokes uploadData() which also lacks a capability check and validates its nonce without an action argument, making it trivially bypassable. This makes it possible for authenticated attackers, with Subscriber-level access and above, to create arbitrary chart posts and access or modify chart data belonging to other users, including administrators.

CVSS v3
4.3
EG Score
4.3(medium)
EPSS
15.3%
KEV
Not listed

Published

May 28, 2026

Last Modified

May 28, 2026

References (8)

Vendor Advisories for CVE-2026-8689(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 9× in last 7d / 53× 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.

Showing the most recent 100 of 105 total refreshes for this CVE.

  1. 2026-07-15 16:57 UTCEPSS rescore
  2. 2026-07-15 02:00 UTCEPSS rescore
  3. 2026-07-13 22:31 UTCEPSS rescore
  4. 2026-07-13 06:13 UTCEPSS rescore
  5. 2026-07-12 05:46 UTCEPSS rescore
  6. 2026-07-11 21:36 UTCEG score recompute
  7. 2026-07-11 21:36 UTCGHSA enrichment
  8. 2026-07-11 08:27 UTCEPSS rescore
  9. 2026-07-09 19:10 UTCEPSS rescore
  10. 2026-07-08 18:37 UTCEG score recompute
  11. 2026-07-08 18:37 UTCGHSA enrichment
  12. 2026-07-08 15:16 UTCEPSS rescore
  13. 2026-07-07 13:46 UTCEPSS rescore
  14. 2026-07-06 16:27 UTCEPSS rescore
  15. 2026-07-06 16:27 UTCEPSS rescore
  16. 2026-07-06 02:23 UTCEPSS rescore
  17. 2026-07-06 02:23 UTCEPSS rescore
  18. 2026-07-05 02:31 UTCEPSS rescore
  19. 2026-07-05 02:30 UTCEPSS rescore
  20. 2026-07-04 06:31 UTCEPSS rescore
  21. 2026-07-04 06:31 UTCEPSS rescore
  22. 2026-07-02 14:30 UTCEG score recompute
  23. 2026-07-02 14:30 UTCGHSA enrichment
  24. 2026-07-01 15:07 UTCEPSS rescore
  25. 2026-07-01 03:23 UTCEG score recompute
Show 75 more
  1. 2026-07-01 03:23 UTCGHSA enrichment
  2. 2026-06-30 23:22 UTCEPSS rescore
  3. 2026-06-29 14:06 UTCEPSS rescore
  4. 2026-06-29 13:47 UTCEG score recompute
  5. 2026-06-29 13:47 UTCGHSA enrichment
  6. 2026-06-28 14:07 UTCEPSS rescore
  7. 2026-06-28 07:30 UTCEG score recompute
  8. 2026-06-28 07:30 UTCGHSA enrichment
  9. 2026-06-28 04:56 UTCEPSS rescore
  10. 2026-06-27 05:31 UTCEG score recompute
  11. 2026-06-27 05:31 UTCGHSA enrichment
  12. 2026-06-27 03:08 UTCEPSS rescore
  13. 2026-06-26 02:06 UTCEG score recompute
  14. 2026-06-26 02:06 UTCGHSA enrichment
  15. 2026-06-25 13:50 UTCEPSS rescore
  16. 2026-06-24 22:55 UTCEG score recompute
  17. 2026-06-24 22:55 UTCGHSA enrichment
  18. 2026-06-24 14:05 UTCEPSS rescore
  19. 2026-06-23 21:33 UTCEPSS rescore
  20. 2026-06-22 14:25 UTCEPSS rescore
  21. 2026-06-21 14:56 UTCEPSS rescore
  22. 2026-06-21 01:59 UTCEPSS rescore
  23. 2026-06-19 19:26 UTCEPSS rescore
  24. 2026-06-18 17:52 UTCEPSS rescore
  25. 2026-06-17 17:53 UTCEPSS rescore
  26. 2026-06-17 11:38 UTCEG score recompute
  27. 2026-06-17 11:38 UTCGHSA enrichment
  28. 2026-06-16 17:53 UTCEPSS rescore
  29. 2026-06-16 09:34 UTCEG score recompute
  30. 2026-06-16 09:34 UTCGHSA enrichment
  31. 2026-06-15 17:49 UTCEPSS rescore
  32. 2026-06-15 17:49 UTCEPSS rescore
  33. 2026-06-15 06:51 UTCEG score recompute
  34. 2026-06-15 06:51 UTCGHSA enrichment
  35. 2026-06-14 23:18 UTCEPSS rescore
  36. 2026-06-14 04:51 UTCEG score recompute
  37. 2026-06-14 04:51 UTCGHSA enrichment
  38. 2026-06-13 23:00 UTCEPSS rescore
  39. 2026-06-13 02:44 UTCEG score recompute
  40. 2026-06-13 02:44 UTCGHSA enrichment
  41. 2026-06-12 23:12 UTCEPSS rescore
  42. 2026-06-12 23:12 UTCEPSS rescore
  43. 2026-06-12 00:44 UTCEG score recompute
  44. 2026-06-12 00:44 UTCGHSA enrichment
  45. 2026-06-11 14:00 UTCEPSS rescore
  46. 2026-06-10 22:43 UTCEG score recompute
  47. 2026-06-10 22:43 UTCGHSA enrichment
  48. 2026-06-10 22:19 UTCEPSS rescore
  49. 2026-06-10 13:22 UTCEPSS rescore
  50. 2026-06-09 20:43 UTCEG score recompute
  51. 2026-06-09 20:43 UTCGHSA enrichment
  52. 2026-06-08 18:43 UTCEG score recompute
  53. 2026-06-08 18:43 UTCGHSA enrichment
  54. 2026-06-08 14:17 UTCEPSS rescore
  55. 2026-06-07 15:25 UTCEPSS rescore
  56. 2026-06-07 13:15 UTCEG score recompute
  57. 2026-06-07 13:15 UTCGHSA enrichment
  58. 2026-06-06 13:47 UTCEPSS rescore
  59. 2026-06-06 11:15 UTCEG score recompute
  60. 2026-06-06 11:15 UTCGHSA enrichment
  61. 2026-06-05 22:47 UTCEPSS rescore
  62. 2026-06-05 09:15 UTCEG score recompute
  63. 2026-06-05 09:14 UTCGHSA enrichment
  64. 2026-06-05 06:10 UTCEPSS rescore
  65. 2026-06-04 13:12 UTCEPSS rescore
  66. 2026-06-04 07:15 UTCEG score recompute
  67. 2026-06-04 07:15 UTCGHSA enrichment
  68. 2026-06-03 05:15 UTCEG score recompute
  69. 2026-06-03 05:15 UTCGHSA enrichment
  70. 2026-06-02 20:13 UTCEPSS rescore
  71. 2026-06-02 03:15 UTCEG score recompute
  72. 2026-06-02 03:15 UTCGHSA enrichment
  73. 2026-06-01 13:52 UTCEPSS rescore
  74. 2026-06-01 01:15 UTCEG score recompute
  75. 2026-06-01 01:15 UTCGHSA enrichment

Related CVEs(same CWE)

Frequently asked(5)

What is CVE-2026-8689?
CVE-2026-8689 is a medium vulnerability published on May 28, 2026. The Visualizer: Tables and Charts Manager for WordPress plugin for WordPress is vulnerable to Missing Authorization in all versions up to, and including, 3.11.14. This is due to a missing capability check on the renderChartPages() and uploadData() functions, where the wpajaxvisualizer-create-chart…
When was CVE-2026-8689 disclosed?
CVE-2026-8689 was first published in the National Vulnerability Database on May 28, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2026-8689 actively exploited?
CVE-2026-8689 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 15.3% percentile likelihood of exploitation in the next 30 days — higher percentiles indicate greater predicted risk.
What is the CVSS score of CVE-2026-8689?
CVE-2026-8689 has a CVSS v3 base score of 4.3 (NVD).
How do I remediate CVE-2026-8689?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2026-8689, 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.

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