CVE-2026-16236

HIGHPre-NVD 8.88.8—
EchelonGraph scoreHIGH confidence

Score 8.8 from GitHub Security Advisory (severity: HIGH) published 2026-07-31. a secondary CVSS source baseline 8.8; sources differ by 0.0.

Triggered by: GitHub Security Advisory CVSS
Sources: epss, ghsa, secondary
Trending — 3 sources updated this week
8.8EG
EchelonGraph verdictPlan a fixSerious severity, but no confirmed exploitation yet.
  • High severity, but no confirmed exploitation yet
CISA-KEV: Not listedEPSS PROB: 1%CVSS: 8.8Exploit: None knownExposed: 0

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

The Realtyna Organic IDX plugin for WordPress is vulnerable to Arbitrary File Upload in versions up to, and including, 5.3.0. This is due to missing file extension and content validation in the saveLiveImages() function combined with an insufficient authorization check on the get_keys() AJAX handler and a missing authentication check on the REST API import endpoint. This makes it possible for authenticated attackers, with subscriber-level access and above, to upload arbitrary files on the affected site's server which may make remote code execution possible.

CVSS v3
8.8
EG Score
8.8(high)
EG Risk
40(Track)
EG Risk 40/100SSVC: Track

EG Risk is EchelonGraph's 0–100 priority score: it fuses intrinsic severity with real-world exploitation and automatability so you can rank equal-severity CVEs and fix the most dangerous first. Higher = act sooner. Distinct from the 0–10 EG Score (severity).

How it’s computed
Severity88% × 45%
Exploitation1% × 40%
Automatability0% × 15%
Action: Routine — remediate on your standard cadence.
EPSS PROB
1%
EPSS %ILE
48%
KEV
Not listed

Published

July 31, 2026

Last Modified

August 12, 2026

References (5)

Vendor Advisories for CVE-2026-16236(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 29× in last 7d / 90× 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. 2026-08-21 01:16 UTCEG score recompute
  2. 2026-08-21 01:16 UTCGHSA enrichment
  3. 2026-08-20 22:55 UTCEPSS rescore
  4. 2026-08-20 14:23 UTCGHSA enrichment
  5. 2026-08-20 03:25 UTCEG score recompute
  6. 2026-08-20 03:25 UTCGHSA enrichment
  7. 2026-08-19 17:03 UTCEPSS rescore
  8. 2026-08-19 16:27 UTCGHSA enrichment
  9. 2026-08-19 05:34 UTCGHSA enrichment
  10. 2026-08-18 18:41 UTCEG score recompute
  11. 2026-08-18 18:41 UTCGHSA enrichment
  12. 2026-08-18 13:48 UTCEPSS rescore
  13. 2026-08-18 07:47 UTCGHSA enrichment
  14. 2026-08-17 20:54 UTCEG score recompute
  15. 2026-08-17 20:54 UTCGHSA enrichment
  16. 2026-08-17 13:47 UTCEPSS rescore
  17. 2026-08-17 10:00 UTCGHSA enrichment
  18. 2026-08-16 23:08 UTCEG score recompute
  19. 2026-08-16 23:08 UTCGHSA enrichment
  20. 2026-08-16 14:56 UTCEPSS rescore
  21. 2026-08-16 12:14 UTCEG score recompute
  22. 2026-08-16 12:14 UTCGHSA enrichment
  23. 2026-08-16 02:14 UTCEPSS rescore
  24. 2026-08-16 01:21 UTCGHSA enrichment
  25. 2026-08-15 14:28 UTCGHSA enrichment
Show 65 more
  1. 2026-08-15 03:35 UTCEG score recompute
  2. 2026-08-15 03:35 UTCGHSA enrichment
  3. 2026-08-15 01:30 UTCEPSS rescore
  4. 2026-08-14 16:41 UTCGHSA enrichment
  5. 2026-08-14 05:48 UTCEG score recompute
  6. 2026-08-14 05:48 UTCGHSA enrichment
  7. 2026-08-13 22:00 UTCEPSS rescore
  8. 2026-08-13 18:55 UTCGHSA enrichment
  9. 2026-08-13 08:02 UTCGHSA enrichment
  10. 2026-08-12 21:09 UTCEG score recompute
  11. 2026-08-12 21:09 UTCGHSA enrichment
  12. 2026-08-12 13:50 UTCEPSS rescore
  13. 2026-08-12 11:39 UTCGHSA enrichment
  14. 2026-08-12 00:45 UTCGHSA enrichment
  15. 2026-08-11 13:52 UTCEG score recompute
  16. 2026-08-11 13:52 UTCGHSA enrichment
  17. 2026-08-11 13:42 UTCEPSS rescore
  18. 2026-08-11 02:59 UTCEG score recompute
  19. 2026-08-11 02:59 UTCGHSA enrichment
  20. 2026-08-11 00:00 UTCEPSS rescore
  21. 2026-08-10 16:06 UTCGHSA enrichment
  22. 2026-08-10 05:13 UTCGHSA enrichment
  23. 2026-08-09 18:20 UTCEG score recompute
  24. 2026-08-09 18:20 UTCGHSA enrichment
  25. 2026-08-09 13:46 UTCEPSS rescore
  26. 2026-08-09 07:27 UTCGHSA enrichment
  27. 2026-08-08 20:34 UTCEG score recompute
  28. 2026-08-08 20:34 UTCGHSA enrichment
  29. 2026-08-08 16:37 UTCEPSS rescore
  30. 2026-08-08 09:40 UTCGHSA enrichment
  31. 2026-08-07 22:47 UTCEG score recompute
  32. 2026-08-07 22:47 UTCGHSA enrichment
  33. 2026-08-07 11:54 UTCGHSA enrichment
  34. 2026-08-07 01:01 UTCGHSA enrichment
  35. 2026-08-06 14:08 UTCEG score recompute
  36. 2026-08-06 14:08 UTCGHSA enrichment
  37. 2026-08-06 13:46 UTCEPSS rescore
  38. 2026-08-06 03:15 UTCEG score recompute
  39. 2026-08-06 03:15 UTCGHSA enrichment
  40. 2026-08-05 19:17 UTCEPSS rescore
  41. 2026-08-05 16:22 UTCGHSA enrichment
  42. 2026-08-05 05:29 UTCGHSA enrichment
  43. 2026-08-04 18:26 UTCEG score recompute
  44. 2026-08-04 18:26 UTCGHSA enrichment
  45. 2026-08-04 10:38 UTCEPSS rescore
  46. 2026-08-04 07:32 UTCGHSA enrichment
  47. 2026-08-03 20:38 UTCEG score recompute
  48. 2026-08-03 20:38 UTCGHSA enrichment
  49. 2026-08-03 10:35 UTCEPSS rescore
  50. 2026-08-03 09:44 UTCGHSA enrichment
  51. 2026-08-02 22:50 UTCGHSA enrichment
  52. 2026-08-02 11:57 UTCEG score recompute
  53. 2026-08-02 11:57 UTCGHSA enrichment
  54. 2026-08-02 02:26 UTCEPSS rescore
  55. 2026-08-02 01:04 UTCGHSA enrichment
  56. 2026-08-01 14:11 UTCEG score recompute
  57. 2026-08-01 14:11 UTCGHSA enrichment
  58. 2026-08-01 04:15 UTCEPSS rescore
  59. 2026-08-01 03:18 UTCEG score recompute
  60. 2026-08-01 03:17 UTCGHSA enrichment
  61. 2026-07-31 16:23 UTCEG score recompute
  62. 2026-07-31 16:23 UTCGHSA enrichment
  63. 2026-07-31 07:25 UTCEG score recompute
  64. 2026-07-31 06:30 UTCEG score recompute
  65. 2026-07-31 06:28 UTCMITRE cvelistV5first tracked

Related CVEs(same CWE)

Frequently asked(5)

What is CVE-2026-16236?
CVE-2026-16236 is a high vulnerability published on July 31, 2026. The Realtyna Organic IDX plugin for WordPress is vulnerable to Arbitrary File Upload in versions up to, and including, 5.3.0. This is due to missing file extension and content validation in the saveLiveImages() function combined with an insufficient authorization check on the get_keys() AJAX…
When was CVE-2026-16236 disclosed?
CVE-2026-16236 was first published in the National Vulnerability Database on July 31, 2026, with the most recent update on August 12, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2026-16236 actively exploited?
CVE-2026-16236 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 1% probability of exploitation in the next 30 days, which ranks it in the top 52.5% of all scored CVEs.
What is the CVSS score of CVE-2026-16236?
CVE-2026-16236 has a CVSS v3 base score of 8.8 (NVD).
How do I remediate CVE-2026-16236?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2026-16236, 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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