CVE-2026-51923

HIGHPre-NVD 8.18.1
EchelonGraph scoreMEDIUM confidence

“—” beside the score: it is equal to the CVSS score beside it.

Score 8.1 from GitHub Security Advisory (severity: HIGH) published 2026-07-09. CISA-ADP (Vulnrichment) CVSS v3.1 baseline 8.1; sources differ by 0.0.

Triggered by: GitHub Security Advisory CVSS
Sources: CISA-ADP (Vulnrichment) CVSS v3.1, EPSS, GitHub Security Advisory
8.1EG
EchelonGraph verdictPlan mitigationRemediate within your standard update timelines (the SSVC decision on this page).
  • High severity, but no confirmed exploitation yet
CISA-KEV: Not listedEPSS PROB: 0.7%CVSS: 8.1Exploit: None knownExposed services: Not assessed

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

An Insecure Direct Object Reference (IDOR) vulnerability exists in docuForm GmbH Client v.11.11c allowing a remote attacker to execute arbitrary code via the user settings component, and modify or retrieve sensitive data associated with other users’ accounts.

CVSS v3
8.1
EG Score
8.1HIGHmedium confidence
EG Risk
37
EG Risk 37/100

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 (value × EchelonGraph’s weight)
Severity81% × 45%
The EG Score, 8.1 of 10.
Exploitation0.7% × 40%
FIRST EPSS: the 30-day exploitation probability when EchelonGraph scored this CVE.
Automatability0% × 15%
CISA's SSVC Automatable value: no (Vulnrichment).
SSVC (CISA's decision table, applied by EchelonGraph): Track at low or medium mission impact; Track* at high (mission-essential systems).
Exploitation none (CISA Vulnrichment) · Automatable no (CISA Vulnrichment) · Technical impact total (CISA Vulnrichment). All three are CISA's SSVC values (Vulnrichment). EchelonGraph applied CISA's decision table to them; CISA publishes SSVC inputs and the table, not a decision for each CVE.
Action: No fix is confirmed yet. Restrict network exposure of the affected system or apply the vendor's mitigation within your standard update timelines, and watch the vendor's advisory for the fix.
EPSS PROB
0.7%
EPSS %ILE
51st
KEV
Not listed

SSVC (CISA's decision table, applied by EchelonGraph)Track at low or medium mission impact; Track* at high (mission-essential systems).

No fix is confirmed yet. Restrict network exposure of the affected system or apply the vendor's mitigation within your standard update timelines, and watch the vendor's advisory for the fix.

Exploitation none (CISA Vulnrichment) · Automatable no (CISA Vulnrichment) · Technical impact total (CISA Vulnrichment). All three are CISA's SSVC values (Vulnrichment). EchelonGraph applied CISA's decision table to them; CISA publishes SSVC inputs and the table, not a decision for each CVE. Mission impact is CISA's Mission & Well-being decision point, and only you can judge it. CISA's table makes it high when Mission Prevalence is Essential — the vulnerable component "directly provides capabilities that constitute at least one MEF for at least one entity" (MEF: mission essential function) — or when Public Well-Being Impact is Irreversible: "multiple fatalities are likely", the cyber-physical system "is likely lost or destroyed", "extreme or serious externalities" are imposed on other parties, or social systems such as elections or the financial grid "are destabilized and potentially collapse". CISA's decision table

BOD 26-04 (CISA's remediation timeline, Table 1)14 days if the affected system is publicly exposed; Fix on system upgrade if it is not.

In CISA KEV no (CISA's KEV catalog) · Automatable no (CISA Vulnrichment) · Technical impact total (CISA Vulnrichment). Whether your system is publicly exposed is yours to answer. BOD 26-04 binds US Federal Civilian Executive Branch agencies; for anyone else it is CISA's published timeline, a reference rather than an obligation. The directive · how EchelonGraph applies it

Published

July 9, 2026

Last Modified

July 10, 2026

Advisory Details (3)

Auto-updated Jul 10, 2026
No fix on record yet.
Web page

ZeroBreach-GmbH’s gists · GitHub

https://gist.github.com/ZeroBreach-GmbH
Web page

docuFORM Mercury Suite | Serverless - Driverless - Limitless

https://docuform.de
Web page

ZeroBreach - Penetrationstests, Security Beratung & Awareness Training

https://ZeroBreach.de

Vendor Advisories for CVE-2026-51923(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 10× in last 7d / 40× in last 30d)

Each row is a time one of our pipelines fetched, updated or re-scored this CVE. 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. An arrow marks a change the record states ("CVSS v3 → 9.1"); EPSS and GHSA rows show the values recorded at that time, not what changed (EPSS values are rounded; hover one for the exact figures). Most recent first.

Showing the most recent 100 of 216 refreshes on record for this CVE.

A repeat, a row identical to one the same pipeline wrote less than 10 seconds earlier, is not a separate refresh and is not counted. None are among the latest 100 rows. The 116 oldest rows on record are not shown and were not checked, so the counts can still include repeats.

  1. 2026-10-11 19:41 UTCEG score recompute
  2. 2026-10-11 16:56 UTCEG score recompute
  3. 2026-10-11 14:20 UTCEG score recompute
  4. 2026-10-11 13:49 UTCEPSS rescoreEPSS 0.7% · 51st percentile
  5. 2026-10-10 20:00 UTCEPSS rescoreEPSS 0.7% · 51st percentile
  6. 2026-10-09 20:07 UTCEPSS rescoreEPSS 0.7% · 51st percentile
  7. 2026-10-08 17:12 UTCEPSS rescoreEPSS 0.7% · 51st percentile
  8. 2026-10-07 23:48 UTCEPSS rescoreEPSS 0.7% · 50th percentile
  9. 2026-10-06 15:18 UTCEPSS rescoreEPSS 0.7% · 50th percentile
  10. 2026-10-05 17:43 UTCEPSS rescoreEPSS 0.7% · 50th percentile
  11. 2026-10-04 23:22 UTCEPSS rescoreEPSS 0.7% · 50th percentile
  12. 2026-10-03 14:26 UTCEPSS rescoreEPSS 0.7% · 50th percentile
  13. 2026-10-02 17:56 UTCEPSS rescoreEPSS 0.7% · 50th percentile
  14. 2026-10-01 19:50 UTCEPSS rescoreEPSS 0.7% · 50th percentile
  15. 2026-10-01 16:06 UTCEG score recompute
  16. 2026-10-01 16:06 UTCGHSA enrichmentGHSA-v7c2-32xp-6wj3 · GitHub severity HIGH · GitHub CVSS 8.1
  17. 2026-09-30 15:03 UTCEPSS rescoreEPSS 0.7% · 50th percentile
  18. 2026-09-28 13:51 UTCEPSS rescoreEPSS 0.7% · 50th percentile
  19. 2026-09-28 11:08 UTCEG score recompute
  20. 2026-09-28 11:08 UTCGHSA enrichmentGHSA-v7c2-32xp-6wj3 · GitHub severity HIGH · GitHub CVSS 8.1
  21. 2026-09-27 13:48 UTCEPSS rescoreEPSS 0.7% · 50th percentile
  22. 2026-09-26 15:59 UTCEPSS rescoreEPSS 0.7% · 50th percentile
  23. 2026-09-26 00:27 UTCEPSS rescoreEPSS 0.7% · 50th percentile
  24. 2026-09-24 11:43 UTCEG score recompute
  25. 2026-09-24 11:43 UTCGHSA enrichmentGHSA-v7c2-32xp-6wj3 · GitHub severity HIGH · GitHub CVSS 8.1
Show 75 more
  1. 2026-09-23 17:53 UTCEPSS rescoreEPSS 0.7% · 51st percentile
  2. 2026-09-23 06:02 UTCEG score recompute
  3. 2026-09-23 06:02 UTCGHSA enrichmentGHSA-v7c2-32xp-6wj3 · GitHub severity HIGH · GitHub CVSS 8.1
  4. 2026-09-20 20:16 UTCEPSS rescoreEPSS 0.7% · 51st percentile
  5. 2026-09-18 19:28 UTCEPSS rescoreEPSS 0.7% · 51st percentile
  6. 2026-09-18 05:39 UTCEG score recompute
  7. 2026-09-18 05:39 UTCGHSA enrichmentGHSA-v7c2-32xp-6wj3 · GitHub severity HIGH · GitHub CVSS 8.1
  8. 2026-09-16 14:08 UTCEPSS rescoreEPSS 0.7% · 50th percentile
  9. 2026-09-16 05:15 UTCEPSS rescoreEPSS 0.7% · 50th percentile
  10. 2026-09-13 23:47 UTCEG score recompute
  11. 2026-09-13 23:47 UTCGHSA enrichmentGHSA-v7c2-32xp-6wj3 · GitHub severity HIGH · GitHub CVSS 8.1
  12. 2026-09-13 16:47 UTCEPSS rescoreEPSS 0.7% · 50th percentile
  13. 2026-09-13 08:21 UTCGHSA enrichmentGHSA-v7c2-32xp-6wj3 · GitHub severity HIGH · GitHub CVSS 8.1
  14. 2026-09-12 16:41 UTCEG score recompute
  15. 2026-09-12 16:41 UTCGHSA enrichmentGHSA-v7c2-32xp-6wj3 · GitHub severity HIGH · GitHub CVSS 8.1
  16. 2026-09-12 03:28 UTCEG score recompute
  17. 2026-09-12 03:28 UTCGHSA enrichmentGHSA-v7c2-32xp-6wj3 · GitHub severity HIGH · GitHub CVSS 8.1
  18. 2026-09-11 14:53 UTCEPSS rescoreEPSS 0.7% · 50th percentile
  19. 2026-09-10 09:35 UTCEPSS rescoreEPSS 0.7% · 50th percentile
  20. 2026-09-08 22:01 UTCEPSS rescoreEPSS 0.7% · 50th percentile
  21. 2026-09-07 16:01 UTCEPSS rescoreEPSS 0.7% · 50th percentile
  22. 2026-09-06 14:00 UTCEG score recompute
  23. 2026-09-06 14:00 UTCGHSA enrichmentGHSA-v7c2-32xp-6wj3 · GitHub severity HIGH · GitHub CVSS 8.1
  24. 2026-09-06 13:47 UTCEPSS rescoreEPSS 0.7% · 50th percentile
  25. 2026-09-05 22:38 UTCEG score recompute
  26. 2026-09-05 22:38 UTCGHSA enrichmentGHSA-v7c2-32xp-6wj3 · GitHub severity HIGH · GitHub CVSS 8.1
  27. 2026-09-04 05:06 UTCEPSS rescoreEPSS 0.7% · 50th percentile
  28. 2026-09-02 14:12 UTCEPSS rescoreEPSS 0.7% · 50th percentile
  29. 2026-09-01 13:54 UTCEPSS rescoreEPSS 0.7% · 50th percentile
  30. 2026-09-01 04:40 UTCEPSS rescoreEPSS 0.7% · 49th percentile
  31. 2026-08-30 20:08 UTCEG score recompute
  32. 2026-08-30 20:08 UTCGHSA enrichmentGHSA-v7c2-32xp-6wj3 · GitHub severity HIGH · GitHub CVSS 8.1
  33. 2026-08-30 19:17 UTCEPSS rescoreEPSS 0.7% · 49th percentile
  34. 2026-08-30 06:59 UTCEG score recompute
  35. 2026-08-30 06:59 UTCGHSA enrichmentGHSA-v7c2-32xp-6wj3 · GitHub severity HIGH · GitHub CVSS 8.1
  36. 2026-08-30 01:22 UTCEPSS rescoreEPSS 0.7% · 49th percentile
  37. 2026-08-28 21:41 UTCEPSS rescoreEPSS 0.7% · 49th percentile
  38. 2026-08-27 21:47 UTCEG score recompute
  39. 2026-08-27 21:47 UTCGHSA enrichmentGHSA-v7c2-32xp-6wj3 · GitHub severity HIGH · GitHub CVSS 8.1
  40. 2026-08-27 14:25 UTCEPSS rescoreEPSS 0.7% · 49th percentile
  41. 2026-08-27 01:14 UTCEG score recompute
  42. 2026-08-27 01:14 UTCGHSA enrichmentGHSA-v7c2-32xp-6wj3 · GitHub severity HIGH · GitHub CVSS 8.1
  43. 2026-08-26 14:46 UTCEPSS rescoreEPSS 0.7% · 49th percentile
  44. 2026-08-26 08:20 UTCGHSA enrichmentGHSA-v7c2-32xp-6wj3 · GitHub severity HIGH · GitHub CVSS 8.1
  45. 2026-08-25 15:56 UTCEG score recompute
  46. 2026-08-25 15:56 UTCGHSA enrichmentGHSA-v7c2-32xp-6wj3 · GitHub severity HIGH · GitHub CVSS 8.1
  47. 2026-08-25 13:49 UTCEPSS rescoreEPSS 0.7% · 49th percentile
  48. 2026-08-25 02:16 UTCEG score recompute
  49. 2026-08-25 02:16 UTCGHSA enrichmentGHSA-v7c2-32xp-6wj3 · GitHub severity HIGH · GitHub CVSS 8.1
  50. 2026-08-24 13:07 UTCEG score recompute
  51. 2026-08-24 13:07 UTCGHSA enrichmentGHSA-v7c2-32xp-6wj3 · GitHub severity HIGH · GitHub CVSS 8.1
  52. 2026-08-23 23:57 UTCGHSA enrichmentGHSA-v7c2-32xp-6wj3 · GitHub severity HIGH · GitHub CVSS 8.1
  53. 2026-08-23 10:48 UTCEG score recompute
  54. 2026-08-23 10:48 UTCGHSA enrichmentGHSA-v7c2-32xp-6wj3 · GitHub severity HIGH · GitHub CVSS 8.1
  55. 2026-08-23 00:19 UTCEPSS rescoreEPSS 0.4% · 31st percentile
  56. 2026-08-22 21:39 UTCGHSA enrichmentGHSA-v7c2-32xp-6wj3 · GitHub severity HIGH · GitHub CVSS 8.1
  57. 2026-08-22 08:21 UTCEG score recompute
  58. 2026-08-22 08:21 UTCGHSA enrichmentGHSA-v7c2-32xp-6wj3 · GitHub severity HIGH · GitHub CVSS 8.1
  59. 2026-08-21 23:49 UTCEPSS rescoreEPSS 0.4% · 31st percentile
  60. 2026-08-21 19:12 UTCGHSA enrichmentGHSA-v7c2-32xp-6wj3 · GitHub severity HIGH · GitHub CVSS 8.1
  61. 2026-08-21 06:03 UTCEG score recompute
  62. 2026-08-21 06:03 UTCGHSA enrichmentGHSA-v7c2-32xp-6wj3 · GitHub severity HIGH · GitHub CVSS 8.1
  63. 2026-08-20 22:55 UTCEPSS rescoreEPSS 0.4% · 31st percentile
  64. 2026-08-20 16:53 UTCGHSA enrichmentGHSA-v7c2-32xp-6wj3 · GitHub severity HIGH · GitHub CVSS 8.1
  65. 2026-08-20 03:39 UTCEG score recompute
  66. 2026-08-20 03:39 UTCGHSA enrichmentGHSA-v7c2-32xp-6wj3 · GitHub severity HIGH · GitHub CVSS 8.1
  67. 2026-08-19 17:04 UTCEPSS rescoreEPSS 0.4% · 31st percentile
  68. 2026-08-19 14:05 UTCGHSA enrichmentGHSA-v7c2-32xp-6wj3 · GitHub severity HIGH · GitHub CVSS 8.1
  69. 2026-08-19 00:45 UTCEG score recompute
  70. 2026-08-19 00:45 UTCGHSA enrichmentGHSA-v7c2-32xp-6wj3 · GitHub severity HIGH · GitHub CVSS 8.1
  71. 2026-08-18 13:48 UTCEPSS rescoreEPSS 0.4% · 31st percentile
  72. 2026-08-18 11:32 UTCGHSA enrichmentGHSA-v7c2-32xp-6wj3 · GitHub severity HIGH · GitHub CVSS 8.1
  73. 2026-08-17 22:19 UTCEG score recompute
  74. 2026-08-17 22:19 UTCGHSA enrichmentGHSA-v7c2-32xp-6wj3 · GitHub severity HIGH · GitHub CVSS 8.1
  75. 2026-08-17 13:47 UTCEPSS rescoreEPSS 0.4% · 31st percentile

Related CVEs(same CWE)

Frequently asked(5)

What is CVE-2026-51923?
CVE-2026-51923 is a high-severity vulnerability; its CVE record was published on July 9, 2026. An Insecure Direct Object Reference (IDOR) vulnerability exists in docuForm GmbH Client v.11.11c allowing a remote attacker to execute arbitrary code via the user settings component, and modify or retrieve sensitive data associated with other users’ accounts.
When was the CVE record for CVE-2026-51923 published?
The CVE record for CVE-2026-51923 was published on July 9, 2026. That is the record's publication date; the vulnerability itself may have been made public earlier. EchelonGraph's copy of the record carries a last-modified date of July 10, 2026; the record at its source may have been updated since.
Is CVE-2026-51923 actively exploited?
CVE-2026-51923 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 0.7% probability of exploitation in the next 30 days (51st percentile of EPSS-scored CVEs).
What is the CVSS score of CVE-2026-51923?
CVE-2026-51923 has a CVSS v3.1 base score of 8.1 (CISA-ADP / Vulnrichment enrichment; NVD's own analysis pending).
How do I remediate CVE-2026-51923?
No fix for CVE-2026-51923 is confirmed yet. Until one is published, restrict network exposure of the affected system or apply the vendor's mitigation — for example, keep it off the internet or limit it to trusted networks — and watch the vendor's advisory for the fix. The vendor advisories EchelonGraph has for CVE-2026-51923 are linked in the Vendor Advisories panel on this page.

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