CVE-2026-65886

HIGHNVD 7.57.5—
EchelonGraph scoreMEDIUM confidence

Score 7.5 from GitHub Security Advisory (severity: CRITICAL) published 2026-07-29. NVD baseline CVSS 7.5; sources differ by 0.0.

Triggered by: GitHub Security Advisory CVSS
Sources: epss, ghsa, nvd
Trending — 3 sources updated this week
7.5EG
EchelonGraph verdictPlan a fixSerious severity, but no confirmed exploitation yet.
  • High severity, but no confirmed exploitation yet
CISA-KEV: Not listedEPSS PROB: 0%CVSS: 7.5Exploit: None knownExposed: 0

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

Joomla Extension - balbooa.com - Unauthenticated arbitrary file read in Gridbox < 2.20.2 - The photo viewer allows unauthenticated attackers to view arbitrary files.

CVSS v3
7.5
EG Score
7.5(medium)
EG Risk
49(Track)
EG Risk 49/100SSVC: 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
Severity75% × 45%
Exploitation0% × 40%
Automatability100% × 15%
Action: Routine — remediate on your standard cadence.
EPSS PROB
0%
EPSS %ILE
29%
KEV
Not listed

Published

July 29, 2026

Last Modified

August 12, 2026

Advisory Details (2)

Auto-updated Aug 1, 2026
⚠️ Active exploitation confirmed. No patch confirmed yet.
generic

Build a Joomla Site — Joomla Website Builder Gridbox

https://www.balbooa.com/gridbox
generic🔴 Active Exploitation

Gridbox: 23 More Critical Vulnerabilities | mySites.guru

https://mysites.guru/blog/gridbox-23-critical-vulnerabilities/

Vendor Advisories for CVE-2026-65886(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 22× in last 7d / 131× 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 150 total refreshes for this CVE.

  1. 2026-08-30 01:22 UTCEPSS rescore
  2. 2026-08-29 23:19 UTCEG score recompute
  3. 2026-08-29 23:19 UTCGHSA enrichment
  4. 2026-08-28 21:42 UTCEPSS rescore
  5. 2026-08-28 02:40 UTCEG score recompute
  6. 2026-08-28 02:40 UTCGHSA enrichment
  7. 2026-08-27 14:22 UTCGHSA enrichment
  8. 2026-08-27 02:01 UTCEG score recompute
  9. 2026-08-27 02:01 UTCGHSA enrichment
  10. 2026-08-26 14:47 UTCEPSS rescore
  11. 2026-08-26 13:44 UTCGHSA enrichment
  12. 2026-08-26 01:26 UTCEG score recompute
  13. 2026-08-26 01:26 UTCGHSA enrichment
  14. 2026-08-25 13:49 UTCEPSS rescore
  15. 2026-08-25 13:08 UTCGHSA enrichment
  16. 2026-08-25 00:47 UTCEG score recompute
  17. 2026-08-25 00:47 UTCGHSA enrichment
  18. 2026-08-24 12:30 UTCEG score recompute
  19. 2026-08-24 12:30 UTCGHSA enrichment
  20. 2026-08-24 00:07 UTCGHSA enrichment
  21. 2026-08-23 11:49 UTCEG score recompute
  22. 2026-08-23 11:49 UTCGHSA enrichment
  23. 2026-08-23 00:19 UTCEPSS rescore
  24. 2026-08-22 23:32 UTCGHSA enrichment
  25. 2026-08-22 11:14 UTCEG score recompute
Show 75 more
  1. 2026-08-22 11:14 UTCGHSA enrichment
  2. 2026-08-21 23:49 UTCEPSS rescore
  3. 2026-08-21 22:56 UTCGHSA enrichment
  4. 2026-08-21 10:38 UTCEG score recompute
  5. 2026-08-21 10:38 UTCGHSA enrichment
  6. 2026-08-20 22:56 UTCEPSS rescore
  7. 2026-08-20 22:20 UTCGHSA enrichment
  8. 2026-08-20 10:02 UTCGHSA enrichment
  9. 2026-08-19 21:45 UTCEG score recompute
  10. 2026-08-19 21:45 UTCGHSA enrichment
  11. 2026-08-19 17:04 UTCEPSS rescore
  12. 2026-08-19 09:26 UTCGHSA enrichment
  13. 2026-08-18 21:07 UTCEG score recompute
  14. 2026-08-18 21:07 UTCGHSA enrichment
  15. 2026-08-18 13:48 UTCEPSS rescore
  16. 2026-08-18 08:46 UTCGHSA enrichment
  17. 2026-08-17 19:54 UTCEG score recompute
  18. 2026-08-17 19:54 UTCGHSA enrichment
  19. 2026-08-17 13:47 UTCEPSS rescore
  20. 2026-08-17 05:47 UTCGHSA enrichment
  21. 2026-08-16 16:49 UTCEG score recompute
  22. 2026-08-16 16:49 UTCGHSA enrichment
  23. 2026-08-16 14:56 UTCEPSS rescore
  24. 2026-08-16 04:32 UTCEG score recompute
  25. 2026-08-16 04:32 UTCGHSA enrichment
  26. 2026-08-15 16:15 UTCGHSA enrichment
  27. 2026-08-15 03:57 UTCEG score recompute
  28. 2026-08-15 03:57 UTCGHSA enrichment
  29. 2026-08-15 01:30 UTCEPSS rescore
  30. 2026-08-14 15:39 UTCGHSA enrichment
  31. 2026-08-14 03:22 UTCEG score recompute
  32. 2026-08-14 03:22 UTCGHSA enrichment
  33. 2026-08-13 22:00 UTCEPSS rescore
  34. 2026-08-13 15:04 UTCGHSA enrichment
  35. 2026-08-13 02:46 UTCGHSA enrichment
  36. 2026-08-12 14:29 UTCEG score recompute
  37. 2026-08-12 14:29 UTCGHSA enrichment
  38. 2026-08-12 13:51 UTCEPSS rescore
  39. 2026-08-12 09:20 UTCGHSA enrichment
  40. 2026-08-11 21:02 UTCEG score recompute
  41. 2026-08-11 21:02 UTCGHSA enrichment
  42. 2026-08-11 08:44 UTCEG score recompute
  43. 2026-08-11 08:44 UTCGHSA enrichment
  44. 2026-08-11 00:00 UTCEPSS rescore
  45. 2026-08-10 20:27 UTCGHSA enrichment
  46. 2026-08-10 08:09 UTCGHSA enrichment
  47. 2026-08-09 19:52 UTCEG score recompute
  48. 2026-08-09 19:52 UTCGHSA enrichment
  49. 2026-08-09 13:47 UTCEPSS rescore
  50. 2026-08-09 07:34 UTCGHSA enrichment
  51. 2026-08-08 19:17 UTCEG score recompute
  52. 2026-08-08 19:17 UTCGHSA enrichment
  53. 2026-08-08 16:37 UTCEPSS rescore
  54. 2026-08-08 06:59 UTCGHSA enrichment
  55. 2026-08-07 18:42 UTCEG score recompute
  56. 2026-08-07 18:42 UTCGHSA enrichment
  57. 2026-08-07 06:24 UTCGHSA enrichment
  58. 2026-08-06 18:06 UTCEG score recompute
  59. 2026-08-06 18:06 UTCGHSA enrichment
  60. 2026-08-06 13:47 UTCEPSS rescore
  61. 2026-08-06 05:49 UTCEG score recompute
  62. 2026-08-06 05:49 UTCGHSA enrichment
  63. 2026-08-05 19:17 UTCEPSS rescore
  64. 2026-08-05 19:17 UTCEPSS rescore
  65. 2026-08-05 17:31 UTCEG score recompute▼ 1.70
  66. 2026-08-05 17:31 UTCGHSA enrichment
  67. 2026-08-05 17:28 UTCNVD updateCVSS v3 → 7.5 · severity → HIGH
  68. 2026-08-05 14:46 UTCGHSA enrichment
  69. 2026-08-05 10:25 UTCGHSA enrichment
  70. 2026-08-05 05:57 UTCGHSA enrichment
  71. 2026-08-05 01:35 UTCGHSA enrichment
  72. 2026-08-04 21:14 UTCGHSA enrichment
  73. 2026-08-04 16:53 UTCEG score recompute
  74. 2026-08-04 16:53 UTCGHSA enrichment
  75. 2026-08-04 15:10 UTCEPSS rescore

Related CVEs(same CWE)

Frequently asked(5)

What is CVE-2026-65886?
CVE-2026-65886 is a high vulnerability published on July 29, 2026. Joomla Extension - balbooa.com - Unauthenticated arbitrary file read in Gridbox < 2.20.2 - The photo viewer allows unauthenticated attackers to view arbitrary files.
When was CVE-2026-65886 disclosed?
CVE-2026-65886 was first published in the National Vulnerability Database on July 29, 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-2026-65886 actively exploited?
CVE-2026-65886 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 0% probability of exploitation in the next 30 days, which ranks it in the top 70.8% of all scored CVEs.
What is the CVSS score of CVE-2026-65886?
CVE-2026-65886 has a CVSS v3 base score of 7.5 (NVD).
How do I remediate CVE-2026-65886?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2026-65886, 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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