CVE-2026-12400

MEDIUMPre-NVD 4.34.3—
EchelonGraph scoreMEDIUM confidence

Score 4.3 from GitHub Security Advisory published 2026-07-10. A secondary CVSS source baseline 4.3; sources differ by 0.0.

Triggered by: GitHub Security Advisory CVSS
Sources: EPSS, GitHub Security Advisory, a secondary CVSS source
4.3EG
EchelonGraph verdictMonitorRemediate within your standard update timelines (the SSVC decision on this page).
  • Lower severity and no public exploit yet
CISA-KEV: Not listedEPSS PROB: 0.4%CVSS: 4.3Exploit: None knownExposed services: Not assessed

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

The FlowForms – Conversational Form Builder plugin for WordPress is vulnerable to Insecure Direct Object Reference in all versions up to, and including, 1.1.1 via the update_form due to missing validation on a user controlled key. This makes it possible for authenticated attackers, with contributor-level access and above, to modify the content, design, and settings of, as well as publish or revert, any form on the site — including forms owned by administrators — by supplying an arbitrary form ID in the REST URL.

CVSS v3
4.3
EG Score
4.3MEDIUMmedium confidence
EG Risk
19
EG Risk 19/100

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)
Severity43% × 45%
The EG Score, 4.3 of 10.
Exploitation0.4% × 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 every mission impact level.
Exploitation none (CISA Vulnrichment) · Automatable no (CISA Vulnrichment) · Technical impact partial (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
0.4%
EPSS %ILE
29th
KEV
Not listed

SSVC (CISA's decision table, applied by EchelonGraph)Track at every mission impact level.

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 partial (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)60 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 partial (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 10, 2026

Last Modified

July 14, 2026

References (8)

Vendor Advisories for CVE-2026-12400(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 / 38× 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 175 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 75 oldest rows on record are not shown and were not checked, so the counts can still include repeats.

  1. 2026-10-11 18:24 UTCEG score recompute
  2. 2026-10-11 14:58 UTCEG score recompute
  3. 2026-10-11 13:48 UTCEPSS rescoreEPSS 0.4% · 29th percentile
  4. 2026-10-10 19:59 UTCEPSS rescoreEPSS 0.4% · 28th percentile
  5. 2026-10-09 20:06 UTCEPSS rescoreEPSS 0.4% · 28th percentile
  6. 2026-10-08 17:11 UTCEPSS rescoreEPSS 0.4% · 28th percentile
  7. 2026-10-07 23:47 UTCEPSS rescoreEPSS 0.4% · 28th percentile
  8. 2026-10-06 15:17 UTCEPSS rescoreEPSS 0.4% · 28th percentile
  9. 2026-10-05 17:42 UTCEPSS rescoreEPSS 0.4% · 28th percentile
  10. 2026-10-04 23:21 UTCEPSS rescoreEPSS 0.4% · 28th percentile
  11. 2026-10-03 14:25 UTCEPSS rescoreEPSS 0.4% · 28th percentile
  12. 2026-10-01 19:49 UTCEPSS rescoreEPSS 0.4% · 28th percentile
  13. 2026-10-01 15:55 UTCEG score recompute
  14. 2026-10-01 15:55 UTCGHSA enrichmentGHSA-qcj5-mp4w-93gp · GitHub CVSS 4.3
  15. 2026-09-30 15:02 UTCEPSS rescoreEPSS 0.4% · 28th percentile
  16. 2026-09-29 15:20 UTCEPSS rescoreEPSS 0.4% · 28th percentile
  17. 2026-09-28 13:50 UTCEPSS rescoreEPSS 0.4% · 28th percentile
  18. 2026-09-28 09:51 UTCEG score recompute
  19. 2026-09-28 09:51 UTCGHSA enrichmentGHSA-qcj5-mp4w-93gp · GitHub CVSS 4.3
  20. 2026-09-26 15:58 UTCEPSS rescoreEPSS 0.4% · 28th percentile
  21. 2026-09-24 11:17 UTCEG score recompute
  22. 2026-09-24 11:17 UTCGHSA enrichmentGHSA-qcj5-mp4w-93gp · GitHub CVSS 4.3
  23. 2026-09-23 13:47 UTCEPSS rescoreEPSS 0.4% · 30th percentile
  24. 2026-09-23 05:48 UTCEG score recompute
  25. 2026-09-23 05:48 UTCGHSA enrichmentGHSA-qcj5-mp4w-93gp · GitHub CVSS 4.3
Show 75 more
  1. 2026-09-20 20:15 UTCEPSS rescoreEPSS 0.4% · 30th percentile
  2. 2026-09-18 19:27 UTCEPSS rescoreEPSS 0.4% · 30th percentile
  3. 2026-09-18 05:24 UTCEG score recompute
  4. 2026-09-18 05:24 UTCGHSA enrichmentGHSA-qcj5-mp4w-93gp · GitHub CVSS 4.3
  5. 2026-09-16 05:14 UTCEPSS rescoreEPSS 0.4% · 30th percentile
  6. 2026-09-14 07:34 UTCEG score recompute
  7. 2026-09-14 07:34 UTCGHSA enrichmentGHSA-qcj5-mp4w-93gp · GitHub CVSS 4.3
  8. 2026-09-13 16:46 UTCEPSS rescoreEPSS 0.4% · 30th percentile
  9. 2026-09-13 08:14 UTCEG score recompute
  10. 2026-09-13 08:14 UTCGHSA enrichmentGHSA-qcj5-mp4w-93gp · GitHub CVSS 4.3
  11. 2026-09-12 15:00 UTCEPSS rescoreEPSS 0.4% · 30th percentile
  12. 2026-09-12 03:06 UTCEG score recompute
  13. 2026-09-12 03:06 UTCGHSA enrichmentGHSA-qcj5-mp4w-93gp · GitHub CVSS 4.3
  14. 2026-09-11 14:52 UTCEPSS rescoreEPSS 0.4% · 30th percentile
  15. 2026-09-11 09:36 UTCEPSS rescoreEPSS 0.4% · 30th percentile
  16. 2026-09-10 09:34 UTCEPSS rescoreEPSS 0.4% · 30th percentile
  17. 2026-09-08 22:00 UTCEPSS rescoreEPSS 0.4% · 30th percentile
  18. 2026-09-08 03:04 UTCEG score recompute
  19. 2026-09-08 03:04 UTCGHSA enrichmentGHSA-qcj5-mp4w-93gp · GitHub CVSS 4.3
  20. 2026-09-07 16:01 UTCEPSS rescoreEPSS 0.4% · 30th percentile
  21. 2026-09-06 13:47 UTCEPSS rescoreEPSS 0.4% · 30th percentile
  22. 2026-09-05 21:50 UTCEG score recompute
  23. 2026-09-05 21:50 UTCGHSA enrichmentGHSA-qcj5-mp4w-93gp · GitHub CVSS 4.3
  24. 2026-09-04 05:06 UTCEPSS rescoreEPSS 0.4% · 30th percentile
  25. 2026-09-02 14:11 UTCEPSS rescoreEPSS 0.4% · 30th percentile
  26. 2026-09-01 13:53 UTCEPSS rescoreEPSS 0.4% · 30th percentile
  27. 2026-09-01 04:39 UTCEPSS rescoreEPSS 0.4% · 29th percentile
  28. 2026-08-30 19:17 UTCEPSS rescoreEPSS 0.4% · 29th percentile
  29. 2026-08-30 06:30 UTCEG score recompute
  30. 2026-08-30 06:30 UTCGHSA enrichmentGHSA-qcj5-mp4w-93gp · GitHub CVSS 4.3
  31. 2026-08-30 01:21 UTCEPSS rescoreEPSS 0.4% · 29th percentile
  32. 2026-08-28 21:40 UTCEPSS rescoreEPSS 0.4% · 29th percentile
  33. 2026-08-28 02:40 UTCEG score recompute
  34. 2026-08-28 02:40 UTCGHSA enrichmentGHSA-qcj5-mp4w-93gp · GitHub CVSS 4.3
  35. 2026-08-27 14:24 UTCEPSS rescoreEPSS 0.4% · 29th percentile
  36. 2026-08-27 03:11 UTCEG score recompute
  37. 2026-08-27 03:11 UTCGHSA enrichmentGHSA-qcj5-mp4w-93gp · GitHub CVSS 4.3
  38. 2026-08-26 03:42 UTCEG score recompute
  39. 2026-08-26 03:42 UTCGHSA enrichmentGHSA-qcj5-mp4w-93gp · GitHub CVSS 4.3
  40. 2026-08-25 13:48 UTCEPSS rescoreEPSS 0.4% · 29th percentile
  41. 2026-08-24 22:25 UTCEG score recompute
  42. 2026-08-24 22:25 UTCGHSA enrichmentGHSA-qcj5-mp4w-93gp · GitHub CVSS 4.3
  43. 2026-08-23 23:05 UTCEG score recompute
  44. 2026-08-23 23:05 UTCGHSA enrichmentGHSA-qcj5-mp4w-93gp · GitHub CVSS 4.3
  45. 2026-08-23 00:19 UTCEPSS rescoreEPSS 0.3% · 19th percentile
  46. 2026-08-22 23:37 UTCGHSA enrichmentGHSA-qcj5-mp4w-93gp · GitHub CVSS 4.3
  47. 2026-08-22 00:16 UTCEG score recompute
  48. 2026-08-22 00:16 UTCGHSA enrichmentGHSA-qcj5-mp4w-93gp · GitHub CVSS 4.3
  49. 2026-08-21 23:48 UTCEPSS rescoreEPSS 0.3% · 19th percentile
  50. 2026-08-21 00:55 UTCEG score recompute
  51. 2026-08-21 00:55 UTCGHSA enrichmentGHSA-qcj5-mp4w-93gp · GitHub CVSS 4.3
  52. 2026-08-20 22:55 UTCEPSS rescoreEPSS 0.3% · 19th percentile
  53. 2026-08-20 01:36 UTCEG score recompute
  54. 2026-08-20 01:36 UTCGHSA enrichmentGHSA-qcj5-mp4w-93gp · GitHub CVSS 4.3
  55. 2026-08-19 17:03 UTCEPSS rescoreEPSS 0.3% · 19th percentile
  56. 2026-08-18 22:22 UTCEG score recompute
  57. 2026-08-18 22:22 UTCGHSA enrichmentGHSA-qcj5-mp4w-93gp · GitHub CVSS 4.3
  58. 2026-08-18 13:48 UTCEPSS rescoreEPSS 0.3% · 19th percentile
  59. 2026-08-17 22:47 UTCEG score recompute
  60. 2026-08-17 22:47 UTCGHSA enrichmentGHSA-qcj5-mp4w-93gp · GitHub CVSS 4.3
  61. 2026-08-16 23:27 UTCEG score recompute
  62. 2026-08-16 23:27 UTCGHSA enrichmentGHSA-qcj5-mp4w-93gp · GitHub CVSS 4.3
  63. 2026-08-16 14:56 UTCEPSS rescoreEPSS 0.3% · 19th percentile
  64. 2026-08-16 02:14 UTCEPSS rescoreEPSS 0.3% · 19th percentile
  65. 2026-08-16 00:07 UTCEG score recompute
  66. 2026-08-16 00:07 UTCGHSA enrichmentGHSA-qcj5-mp4w-93gp · GitHub CVSS 4.3
  67. 2026-08-15 01:30 UTCEPSS rescoreEPSS 0.3% · 18th percentile
  68. 2026-08-15 00:47 UTCGHSA enrichmentGHSA-qcj5-mp4w-93gp · GitHub CVSS 4.3
  69. 2026-08-14 01:27 UTCEG score recompute
  70. 2026-08-14 01:27 UTCGHSA enrichmentGHSA-qcj5-mp4w-93gp · GitHub CVSS 4.3
  71. 2026-08-13 22:00 UTCEPSS rescoreEPSS 0.3% · 18th percentile
  72. 2026-08-13 02:08 UTCEG score recompute
  73. 2026-08-13 02:08 UTCGHSA enrichmentGHSA-qcj5-mp4w-93gp · GitHub CVSS 4.3
  74. 2026-08-12 13:50 UTCEPSS rescoreEPSS 0.3% · 18th percentile
  75. 2026-08-12 02:48 UTCEG score recompute

Related CVEs(same CWE)

Frequently asked(5)

What is CVE-2026-12400?
CVE-2026-12400 is a medium-severity vulnerability; its CVE record was published on July 10, 2026. The FlowForms – Conversational Form Builder plugin for WordPress is vulnerable to Insecure Direct Object Reference in all versions up to, and including, 1.1.1 via the update_form due to missing validation on a user controlled key. This makes it possible for authenticated attackers, with…
When was the CVE record for CVE-2026-12400 published?
The CVE record for CVE-2026-12400 was published on July 10, 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 14, 2026; the record at its source may have been updated since.
Is CVE-2026-12400 actively exploited?
CVE-2026-12400 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 0.4% probability of exploitation in the next 30 days (29th percentile of EPSS-scored CVEs).
What is the CVSS score of CVE-2026-12400?
CVE-2026-12400 has a CVSS base score of 4.3 (a secondary CVSS source that NVD displays; NVD's own analysis pending).
How do I remediate CVE-2026-12400?
No fix for CVE-2026-12400 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-2026-12400 are linked in the Vendor Advisories panel on this page.

Dependency Blast Radius

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