CVE-2026-86732

HIGHPre-NVD 8.88.8—
EchelonGraph scoreHIGH confidence

Score 8.8 from GitHub Security Advisory (severity: HIGH) published 2026-09-08. a secondary CVSS source baseline 8.8; sources differ by 0.0.

Triggered by: GitHub Security Advisory CVSS
Sources: epss, ghsa, secondary
Trending — 3 sources updated this week
8.8EG
EchelonGraph verdictPlan a fixSerious severity, but no confirmed exploitation yet.
  • High severity, but no confirmed exploitation yet
CISA-KEV: Not listedEPSS PROB: 1%CVSS: 8.8Exploit: None knownExposed: 0

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

Craft CMS versions before 5.10.12 contain a remote code execution vulnerability in the element-index endpoint that allows authenticated content editors to instantiate arbitrary classes through the criteria parameter. Attackers can inject a malicious class via criteria[withTransforms][0][class] that reaches ImageTransforms::normalizeTransform(), then use a PHP gadget chain with yii\rbac\PhpManager to execute code by pointing itemFile to a request log containing PHP payload in the User-Agent header.

CVSS v3
8.8
EG Score
8.8(high)
EG Risk
40(Track)
EG Risk 40/100SSVC: 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
Severity88% × 45%
Exploitation1% × 40%
Automatability0% × 15%
Action: Routine — remediate on your standard cadence.
EPSS PROB
1%
EPSS %ILE
56%
KEV
Not listed

Published

September 8, 2026

Last Modified

September 10, 2026

Advisory Details (2)

Auto-updated Sep 8, 2026
Patch available. Sources: github.
generic

Craft CMS before 5.10.12 Remote Code Execution via element-index | Advisories | VulnCheck

https://www.vulncheck.com/advisories/craft-cms-before-5.10.12-remote-code-execution-via-element-index
github Patch Available

Remote Code Execution by non-admin authenticated user · Advisory · craftcms/cms · GitHub

https://github.com/craftcms/cms/security/advisories/GHSA-9wcj-wqqh-cqvg

Vendor Advisories for CVE-2026-86732(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 26× 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.

  1. 2026-09-25 06:53 UTCGHSA enrichment
  2. 2026-09-24 18:21 UTCEG score recompute
  3. 2026-09-24 18:21 UTCGHSA enrichment
  4. 2026-09-24 14:04 UTCEPSS rescore
  5. 2026-09-24 05:10 UTCEG score recompute
  6. 2026-09-24 05:10 UTCGHSA enrichment
  7. 2026-09-23 17:54 UTCEPSS rescore
  8. 2026-09-23 16:38 UTCGHSA enrichment
  9. 2026-09-23 04:05 UTCEG score recompute
  10. 2026-09-23 04:05 UTCGHSA enrichment
  11. 2026-09-22 16:01 UTCEPSS rescore
  12. 2026-09-22 15:31 UTCGHSA enrichment
  13. 2026-09-22 02:59 UTCEG score recompute
  14. 2026-09-22 02:59 UTCGHSA enrichment
  15. 2026-09-21 21:09 UTCEPSS rescore
  16. 2026-09-21 14:26 UTCGHSA enrichment
  17. 2026-09-21 01:53 UTCEG score recompute
  18. 2026-09-21 01:53 UTCGHSA enrichment
  19. 2026-09-20 20:16 UTCEPSS rescore
  20. 2026-09-20 13:20 UTCGHSA enrichment
  21. 2026-09-20 00:45 UTCEG score recompute
  22. 2026-09-20 00:45 UTCGHSA enrichment
  23. 2026-09-19 12:13 UTCGHSA enrichment
  24. 2026-09-18 23:41 UTCEG score recompute
  25. 2026-09-18 23:41 UTCGHSA enrichment
Show 43 more
  1. 2026-09-18 19:28 UTCEPSS rescore
  2. 2026-09-18 11:09 UTCGHSA enrichment
  3. 2026-09-17 22:36 UTCEG score recompute
  4. 2026-09-17 22:36 UTCGHSA enrichment
  5. 2026-09-17 19:32 UTCEPSS rescore
  6. 2026-09-17 10:02 UTCGHSA enrichment
  7. 2026-09-16 21:29 UTCEG score recompute
  8. 2026-09-16 21:29 UTCGHSA enrichment
  9. 2026-09-16 14:09 UTCEPSS rescore
  10. 2026-09-16 08:57 UTCEG score recompute
  11. 2026-09-16 08:57 UTCGHSA enrichment
  12. 2026-09-16 05:15 UTCEPSS rescore
  13. 2026-09-15 19:50 UTCGHSA enrichment
  14. 2026-09-15 07:15 UTCEG score recompute
  15. 2026-09-15 07:15 UTCGHSA enrichment
  16. 2026-09-15 03:12 UTCEPSS rescore
  17. 2026-09-15 03:12 UTCEPSS rescore
  18. 2026-09-14 18:42 UTCGHSA enrichment
  19. 2026-09-14 06:10 UTCGHSA enrichment
  20. 2026-09-13 17:38 UTCEG score recompute
  21. 2026-09-13 17:38 UTCGHSA enrichment
  22. 2026-09-13 05:05 UTCGHSA enrichment
  23. 2026-09-12 16:32 UTCEG score recompute
  24. 2026-09-12 16:32 UTCGHSA enrichment
  25. 2026-09-12 04:00 UTCGHSA enrichment
  26. 2026-09-11 15:27 UTCEG score recompute
  27. 2026-09-11 15:27 UTCGHSA enrichment
  28. 2026-09-11 14:53 UTCEPSS rescore
  29. 2026-09-11 14:53 UTCEPSS rescore
  30. 2026-09-11 02:54 UTCGHSA enrichment
  31. 2026-09-10 14:22 UTCEG score recompute
  32. 2026-09-10 14:22 UTCGHSA enrichment
  33. 2026-09-10 14:00 UTCEG score recompute
  34. 2026-09-10 14:00 UTCGHSA enrichment
  35. 2026-09-10 11:39 UTCEG score recompute
  36. 2026-09-10 11:39 UTCGHSA enrichment
  37. 2026-09-09 23:06 UTCGHSA enrichment
  38. 2026-09-09 08:44 UTCGHSA enrichment
  39. 2026-09-08 20:11 UTCEG score recompute
  40. 2026-09-08 20:11 UTCGHSA enrichment
  41. 2026-09-08 16:41 UTCEG score recompute
  42. 2026-09-08 15:25 UTCEG score recompute
  43. 2026-09-08 15:24 UTCMITRE cvelistV5first tracked

Related CVEs(same CWE)

Frequently asked(5)

What is CVE-2026-86732?
CVE-2026-86732 is a high vulnerability published on September 8, 2026. Craft CMS versions before 5.10.12 contain a remote code execution vulnerability in the element-index endpoint that allows authenticated content editors to instantiate arbitrary classes through the criteria parameter. Attackers can inject a malicious class via criteria[withTransforms][0][class] that…
When was CVE-2026-86732 disclosed?
CVE-2026-86732 was first published in the National Vulnerability Database on September 8, 2026, with the most recent update on September 10, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2026-86732 actively exploited?
CVE-2026-86732 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 1% probability of exploitation in the next 30 days, which ranks it in the top 43.7% of all scored CVEs.
What is the CVSS score of CVE-2026-86732?
CVE-2026-86732 has a CVSS v3 base score of 8.8 (NVD).
How do I remediate CVE-2026-86732?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2026-86732, 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-2026-86732

Explore →

Is Your Infrastructure Affected by CVE-2026-86732?

EchelonGraph automatically scans your cloud infrastructure and maps CVE exposure using blast radius analysis.

Book a Demo →Browse All CVEs