CVE-2026-56291

CRITICALNVD 9.89.8—
EchelonGraph scoreHIGH confidence

Score elevated to 9.8 because this CVE is listed on the CISA Known Exploited Vulnerabilities catalog (added 2026-07-10), indicating real-world exploitation has been confirmed by US federal agencies. NVD baseline CVSS 9.8 retained for reference. Confidence: HIGH.

Triggered by: CISA KEV (actively exploited)
Sources: cisa_kev, epss, ghsa, nvd
Trending — 4 sources updated this weekExploited in the wild
9.8EG
EchelonGraph verdictPatch nowTreat as an emergency — this is being exploited.
  • Actively exploited in the wild (CISA-KEV)
CISA-KEV: ExploitedEPSS PROB: 15%CVSS: 9.8Exploit: cisa kev · ssvc active · epss top5pct · public exploitExposed: 0

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

Joomla Extension - balbooa.com - Unauthenticated file upload in Balbooa Forms extension < 2.4.1 - The Joomla extension Balbooa Forms is vulnerable to an unauthenticated arbitrary file upload that allows uploading executable files and leads to full RCE.

CVSS v3
9.8
EG Score
9.8(high)
EG Risk
99(Act)
EG Risk 99/100SSVC: Act

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
Severity98% × 45%
Exploitation100% × 40%
Automatability100% × 15%
Action: Fix now — active exploitation, automatable, high impact.
EPSS PROB
15%
EPSS %ILE
97%
KEV
⚠ Exploited

Published

July 9, 2026

Last Modified

August 12, 2026

Advisory Details (3)

Auto-updated Sep 16, 2026
⚠️ Active exploitation confirmed. No patch confirmed yet.
generic🔴 Active Exploitation

Balbooa Forms RCE - CVE-2026-56291 | mySites.guru

https://mysites.guru/blog/balbooa-forms-unauthenticated-file-upload-flaw/
generic

Balbooa Joomla Forms Builder — Drag & Drop Form Builder

https://www.balbooa.com/joomla-forms
cisa Patch Available🔴 Active Exploitation

Known Exploited Vulnerabilities Catalog | CISA

Known Exploited Vulnerabilities Catalog | CISA. Listed in CISA Known Exploited Vulnerabilities catalog.

https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2026-56291

Vendor Advisories for CVE-2026-56291(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 61× in last 7d / 255× 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 606 total refreshes for this CVE.

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

Publicly available exploits

(2 references)

Working exploit code is in the public domain (1 GitHub PoC). Defenders should treat patch urgency accordingly — public PoCs typically lead to mass-exploitation within 24-72 hours.

  • GitHub PoCshinthink/CVE-2026-56291
    First seen Jul 11, 2026

    Balbooa Forms (com_baforms) < 2.4.1 — Unauthenticated File Upload to RCE via form.uploadAttachmentFile | CVSS 9.8 | CISA KEV

    Open source ↗
  • Nucleihttp/cves/2026/CVE-2026-56291.yaml
    First seen Jan 1, 2026

    Balbooa Forms < 2.4.1 - Unauthenticated Arbitrary File Upload

    Open source ↗

Related CVEs(same CWE)

Frequently asked(6)

What is CVE-2026-56291?
CVE-2026-56291 is a critical vulnerability published on July 9, 2026. Joomla Extension - balbooa.com - Unauthenticated file upload in Balbooa Forms extension < 2.4.1 - The Joomla extension Balbooa Forms is vulnerable to an unauthenticated arbitrary file upload that allows uploading executable files and leads to full RCE.
When was CVE-2026-56291 disclosed?
CVE-2026-56291 was first published in the National Vulnerability Database on July 9, 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-2026-56291 actively exploited?
Yes. CISA added CVE-2026-56291 to the Known Exploited Vulnerabilities catalog on July 10, 2026, affecting Balbooa Forms. KEV listing indicates confirmed exploitation in the wild; this CVE warrants immediate patching attention.
What is the CVSS score of CVE-2026-56291?
CVE-2026-56291 has a CVSS v3 base score of 9.8 (NVD).
Which products are affected by CVE-2026-56291?
CVE-2026-56291 affects Balbooa Forms. The full affected-products list, including version ranges and fixed versions, is shown in the Affected Packages section of this page.
How do I remediate CVE-2026-56291?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2026-56291, 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

Explore the affected products and dependency analysis for CVE-2026-56291

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