CVE-2026-79987

HIGHPre-NVD 8.88.8—
EchelonGraph scoreHIGH confidence

Score 8.8 from GitHub Security Advisory (severity: HIGH) published 2026-09-10. 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: 0%CVSS: 8.8Exploit: None knownExposed: 0

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

A remote, authenticated, non-admin Craft CMS Control Panel user with only the accessCp permission can execute operating system commands as the PHP web worker.

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%
Exploitation0% × 40%
Automatability0% × 15%
Action: Routine — remediate on your standard cadence.
EPSS PROB
0%
EPSS %ILE
30%
KEV
Not listed

Published

September 10, 2026

Last Modified

September 11, 2026

Advisory Details (4)

Auto-updated Sep 10, 2026
Patch available. Sources: github_release, github.
github Patch Available

Low-privilege RCE through element-search eager loading · Advisory · craftcms/cms · GitHub

https://github.com/craftcms/cms/security/advisories/GHSA-9c4j-cjw3-r3xx
generic

GitHub - craftcms/cms: Build bespoke content experiences with Craft. · GitHub

https://github.com/craftcms/cms
github_release Patch Available

5.10.13

Patch available: craftcms/cms 5.10.13

https://github.com/craftcms/cms/releases/tag/5.10.13
generic

Low-privilege RCE through element-search eager loading | Hackrate

https://www.hckrt.com/hacktivity/HCKRT-9TSYY2

Vendor Advisories for CVE-2026-79987(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 25× in last 7d / 41× 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. 2026-09-19 02:15 UTCEG score recompute
  2. 2026-09-19 02:15 UTCGHSA enrichment
  3. 2026-09-18 19:28 UTCEPSS rescore
  4. 2026-09-18 13:36 UTCGHSA enrichment
  5. 2026-09-18 00:58 UTCEG score recompute
  6. 2026-09-18 00:58 UTCGHSA enrichment
  7. 2026-09-17 12:20 UTCGHSA enrichment
  8. 2026-09-16 23:42 UTCEG score recompute
  9. 2026-09-16 23:42 UTCGHSA enrichment
  10. 2026-09-16 14:08 UTCEPSS rescore
  11. 2026-09-16 11:04 UTCEG score recompute
  12. 2026-09-16 11:03 UTCGHSA enrichment
  13. 2026-09-16 05:15 UTCEPSS rescore
  14. 2026-09-15 22:25 UTCGHSA enrichment
  15. 2026-09-15 09:48 UTCEG score recompute
  16. 2026-09-15 09:48 UTCGHSA enrichment
  17. 2026-09-15 03:12 UTCEPSS rescore
  18. 2026-09-15 03:12 UTCEPSS rescore
  19. 2026-09-14 21:10 UTCGHSA enrichment
  20. 2026-09-14 08:30 UTCGHSA enrichment
  21. 2026-09-13 19:52 UTCEG score recompute
  22. 2026-09-13 19:52 UTCGHSA enrichment
  23. 2026-09-13 07:14 UTCGHSA enrichment
  24. 2026-09-12 18:37 UTCEG score recompute
  25. 2026-09-12 18:37 UTCGHSA enrichment
Show 16 more
  1. 2026-09-12 05:59 UTCGHSA enrichment
  2. 2026-09-11 17:22 UTCEG score recompute
  3. 2026-09-11 17:22 UTCGHSA enrichment
  4. 2026-09-11 14:53 UTCEPSS rescore
  5. 2026-09-11 14:53 UTCEPSS rescore
  6. 2026-09-11 04:20 UTCEG score recompute
  7. 2026-09-11 04:20 UTCGHSA enrichment
  8. 2026-09-11 04:00 UTCEG score recompute
  9. 2026-09-11 04:00 UTCGHSA enrichment
  10. 2026-09-10 20:02 UTCGHSA enrichment
  11. 2026-09-10 19:19 UTCEG score recompute
  12. 2026-09-10 19:19 UTCGHSA enrichment
  13. 2026-09-10 18:25 UTCEG score recompute
  14. 2026-09-10 16:20 UTCEG score recompute
  15. 2026-09-10 16:10 UTCEG score recompute
  16. 2026-09-10 16:09 UTCMITRE cvelistV5first tracked

Frequently asked(5)

What is CVE-2026-79987?
CVE-2026-79987 is a high vulnerability published on September 10, 2026. A remote, authenticated, non-admin Craft CMS Control Panel user with only the accessCp permission can execute operating system commands as the PHP web worker.
When was CVE-2026-79987 disclosed?
CVE-2026-79987 was first published in the National Vulnerability Database on September 10, 2026, with the most recent update on September 11, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2026-79987 actively exploited?
CVE-2026-79987 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 70.3% of all scored CVEs.
What is the CVSS score of CVE-2026-79987?
CVE-2026-79987 has a CVSS v3 base score of 8.8 (NVD).
How do I remediate CVE-2026-79987?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2026-79987, 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-2026-79987

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