CVE-2026-59240

MEDIUMPre-NVD 6.96.9—
EchelonGraph scoreMEDIUM confidence

This medium-severity CVE scores 6.9 under a secondary CVSS source (NVD's own analysis pending). EPSS exploit probability: 0.3%, top 79% of all CVEs by exploit prediction. GitHub Security Advisory data not yet ingested — confidence will rise once GHSA publishes (typical lag: hours to days for open-source ecosystem CVEs; never for infrastructure-only CVEs).

Triggered by: NVD CVSS baseline
Sources: epss, secondary
Trending — 3 sources updated this week
6.9EG
EchelonGraph verdictMonitorLow exploitation likelihood right now — keep watching.
  • Lower severity and no public exploit yet
CISA-KEV: Not listedEPSS PROB: 0%CVSS: 6.9Exploit: None knownExposed: 0

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

The vulnerability involves an Insecure Direct Object Reference (IDOR) in the DeleteNotificationController::delete() method at endpoint GET /notification/delete/{id}. The flaw allows any authenticated user, regardless of company or permissions, to delete notifications belonging to any other user in the system. The controller retrieves the target record with Notification::findOrFail($id) and deletes it without validating user_id or company_id ownership, unlike the sibling SetNotificationReadAjaxController, which correctly scopes lookups by Auth::id(). Because notification identifiers are sequential, an attacker can iterate over IDs to systematically delete notifications belonging to any user, denying them visibility of ticket alerts, task assignments, and other system events.

CVSS v3
6.9
EG Score
6.9(medium)
EG Risk
46(Track)
EG Risk 46/100SSVC: 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
Severity69% × 45%
Exploitation0% × 40%
Automatability100% × 15%
Action: Routine — remediate on your standard cadence.
EPSS PROB
0%
EPSS %ILE
21%
KEV
Not listed

Published

July 27, 2026

Last Modified

September 1, 2026

Advisory Details (3)

Auto-updated Jul 27, 2026
Patch available. Sources: github_commit, github_release.
generic

CVE-2026-59240 · IDOR in Prospero Flow CRM allows deletion of other users notifications | Vulnerabilities published by Secur0

https://secur0.com/en/cna/cve-list/cve-2026-59240-idor-in-prospero-flow-crm-allows-deletion-of-other-users-notifications
github_release Patch Available

v5.5.3 - Big security upgrade

Patch available: Roskus/prospero-flow-crm v5.5.3

https://github.com/Roskus/prospero-flow-crm/releases/tag/v5.5.3
github_commit Patch Available

commit eaee2ae01870 (Roskus/prospero-flow-crm)

Patch available: Roskus/prospero-flow-crm v5.5.3 (contains commit eaee2ae01870)

https://github.com/Roskus/prospero-flow-crm/commit/eaee2ae018701d116164976cbfa37fa9294ab4cc

Vendor Advisories for CVE-2026-59240(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 16× in last 7d / 68× 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 124 total refreshes for this CVE.

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

Frequently asked(5)

What is CVE-2026-59240?
CVE-2026-59240 is a medium vulnerability published on July 27, 2026. The vulnerability involves an Insecure Direct Object Reference (IDOR) in the DeleteNotificationController::delete() method at endpoint GET /notification/delete/{id}. The flaw allows any authenticated user, regardless of company or permissions, to delete notifications belonging to any other user in…
When was CVE-2026-59240 disclosed?
CVE-2026-59240 was first published in the National Vulnerability Database on July 27, 2026, with the most recent update on September 1, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2026-59240 actively exploited?
CVE-2026-59240 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 78.7% of all scored CVEs.
What is the CVSS score of CVE-2026-59240?
CVE-2026-59240 has a CVSS v3 base score of 6.9 (NVD).
How do I remediate CVE-2026-59240?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2026-59240, 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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