CVE-2026-72778

HIGHPre-NVD 8.88.8—
EchelonGraph scoreMEDIUM confidence

Score 8.8 from GitHub Security Advisory (severity: HIGH) published 2026-08-11. A secondary CVSS source baseline 8.8; sources differ by 0.0.

Triggered by: GitHub Security Advisory CVSS
Sources: epss, ghsa, secondary
8.8EG
EchelonGraph verdictPlan a fixSerious severity, but no confirmed exploitation yet.
  • High severity, but no confirmed exploitation yet
CISA-KEV: Not listedEPSS PROB: 0.8%CVSS: 8.8Exploit: None knownExposed services: Not assessed

A fix is available — apply it.

Craft CMS versions from 4.0.0-RC1 before 4.18.2 and from 5.0.0-RC1 before 5.10.6 contain an authenticated remote code execution vulnerability in the control panel element-search condition handling. Craft cleanses the outer request-controlled condition array via Component::cleanseConfig(), but Conditions::createCondition() later decodes and merges the JSON string in condition.config without re-running cleanseConfig() on the decoded configuration. Because condition.config is a JSON string during the first cleanse, Yii special config keys such as 'as ...' and 'on ...' can be hidden inside it and, after JSON decoding, are interpreted by Yii as behavior/event configuration during FieldLayout object creation. An attacker with an authenticated control panel session (and a valid CSRF token) can exploit this to execute operating system commands as the PHP/web user.

CVSS v3
8.8
EG Score
8.8HIGHmedium confidence
EG Risk
40
EG Risk 40/100CISA SSVC

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
Severity88% × 45%
Exploitation1% × 40%
Automatability0% × 15%
CISA SSVC: Track at low or medium mission impact; Track* at high (mission-essential systems).
Action: A fix is available. Apply it within your standard update timelines.
EPSS PROB
0.8%
EPSS %ILE
55th
KEV
Not listed

CISA SSVCTrack at low or medium mission impact; Track* at high (mission-essential systems).

A fix is available. Apply it within your standard update timelines.

Exploitation none (CISA Vulnrichment) · Automatable no (CISA Vulnrichment) · Technical impact total (CISA Vulnrichment). Mission impact is CISA's Mission & Well-being decision point, and only you can judge it: high means the affected system is essential to your organisation's mission, or its compromise could cause irreversible harm to people. CISA's decision table

Published

August 11, 2026

Last Modified

August 26, 2026

Advisory Details (2)

Auto-updated Aug 11, 2026
Patch available. Sources: github.
generic

Craft CMS 5.0.0-RC1 before 5.10.6 Authenticated RCE via condition.config | Advisories | VulnCheck

https://www.vulncheck.com/advisories/craft-cms-rc1-before-authenticated-rce-via-condition-config
github Patch Available

Authenticated RCE via `condition.config` JSON cleanse bypass · Advisory · craftcms/cms · GitHub

https://github.com/craftcms/cms/security/advisories/GHSA-265m-7826-wjqm

Vendor Advisories for CVE-2026-72778(1)

These vendors published their own advisory mentioning this CVE — often with vendor-specific remediation steps + affected product lists not in NVD.

Affected Packages

(1 across 1 ecosystem)
Packagist(1)
PackageVulnerable rangeFix by version rangeDependents
craftcms/cms4.0.0 ... 4.9.7 (252 versions)
  • 5.0.0-RC1 up to 5.10.6: fixed in 5.10.6
  • 4.0.0-RC1 up to 4.18.2: fixed in 4.18.2
—

Weakness Classification(1)

MITRE Common Weakness Enumeration — the root-cause categories this CVE belongs to.

Data Freshness Timeline

(refreshed 8× in last 7d / 43× 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 138 total refreshes for this CVE.

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

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Frequently asked(5)

What is CVE-2026-72778?
CVE-2026-72778 is a high vulnerability published on August 11, 2026. Craft CMS versions from 4.0.0-RC1 before 4.18.2 and from 5.0.0-RC1 before 5.10.6 contain an authenticated remote code execution vulnerability in the control panel element-search condition handling. Craft cleanses the outer request-controlled condition array via Component::cleanseConfig(), but…
When was CVE-2026-72778 disclosed?
CVE-2026-72778 was first published on August 11, 2026, with the most recent update on August 26, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2026-72778 actively exploited?
CVE-2026-72778 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 0.8% probability of exploitation in the next 30 days (55th percentile of EPSS-scored CVEs).
What is the CVSS score of CVE-2026-72778?
CVE-2026-72778 has a CVSS base score of 8.8 (a secondary CVSS source that NVD displays; NVD's own analysis pending).
How do I remediate CVE-2026-72778?
A fix for CVE-2026-72778 is available: update to the fixed version the vendor names in its advisory. The vendor advisories EchelonGraph has for CVE-2026-72778 are linked in the Vendor Advisories panel on this page.

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