CVE-2026-79774

HIGHPre-NVD 8.48.4—
EchelonGraph scoreHIGH confidence

Score 8.4 from GitHub Security Advisory (severity: CRITICAL) published 2026-08-25. a secondary CVSS source baseline 8.4; sources differ by 0.0.

Triggered by: GitHub Security Advisory CVSS
Sources: epss, ghsa, secondary
Trending — 3 sources updated this week
8.4EG
EchelonGraph verdictPlan a fixSerious severity, but no confirmed exploitation yet.
  • High severity, but no confirmed exploitation yet
CISA-KEV: Not listedEPSS PROB: 0%CVSS: 8.4Exploit: None knownExposed: 0

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

Winter CMS versions before 1.2.13 contain an incomplete fix for a Twig sandbox escape vulnerability in System\\Twig\\SecurityPolicy that allows authenticated backend users with template-editing permissions to bypass sandbox restrictions. Attackers can exploit method forwarding through Eloquent models and query builders using methods like saveQuietly(), deleteQuietly(), increment(), decrement(), and newQuery() to read and modify arbitrary database records, execute arbitrary SQL, and achieve remote code execution by injecting PHP into template code sections.

CVSS v3
8.4
EG Score
8.4(high)
EG Risk
38(Track)
EG Risk 38/100SSVC: 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
Severity84% × 45%
Exploitation0% × 40%
Automatability0% × 15%
Action: Routine — remediate on your standard cadence.
EPSS PROB
0%
EPSS %ILE
37%
KEV
Not listed

Published

August 25, 2026

Last Modified

August 31, 2026

Advisory Details (2)

Auto-updated Aug 25, 2026
Patch available. Sources: github, github_commit.
github_commit Patch Available

commit 725bbcda2324 (wintercms/winter)

Patch available: wintercms/winter v1.2.13 (contains commit 725bbcda2324)

https://github.com/wintercms/winter/commit/725bbcda232466f7f71381c271c6916573d576e6
github Patch Available

Authenticated Twig sandbox escape in CMS SecurityPolicy (bypass of CVE-2024-54149) · Advisory · wintercms/winter · GitHub

https://github.com/wintercms/winter/security/advisories/GHSA-8cfw-pcwh-v63w

Vendor Advisories for CVE-2026-79774(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 rangeFixed inDependents
winter/wn-system-modulev1.2.10 ... v1.2.9 (6 versions)1.2.13—

Weakness Classification(1)

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

Data Freshness Timeline

(refreshed 24× in last 7d / 96× 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 14:15 UTCGHSA enrichment
  2. 2026-09-19 01:18 UTCEG score recompute
  3. 2026-09-19 01:18 UTCGHSA enrichment
  4. 2026-09-18 19:28 UTCEPSS rescore
  5. 2026-09-18 12:42 UTCGHSA enrichment
  6. 2026-09-18 00:05 UTCEG score recompute
  7. 2026-09-18 00:05 UTCGHSA enrichment
  8. 2026-09-17 11:16 UTCGHSA enrichment
  9. 2026-09-16 22:40 UTCEG score recompute
  10. 2026-09-16 22:40 UTCGHSA enrichment
  11. 2026-09-16 14:08 UTCEPSS rescore
  12. 2026-09-16 10:00 UTCEG score recompute
  13. 2026-09-16 10:00 UTCGHSA enrichment
  14. 2026-09-16 05:15 UTCEPSS rescore
  15. 2026-09-15 21:23 UTCGHSA enrichment
  16. 2026-09-15 08:46 UTCEG score recompute
  17. 2026-09-15 08:46 UTCGHSA enrichment
  18. 2026-09-15 03:12 UTCEPSS rescore
  19. 2026-09-15 03:12 UTCEPSS rescore
  20. 2026-09-14 20:10 UTCGHSA enrichment
  21. 2026-09-14 07:33 UTCGHSA enrichment
  22. 2026-09-13 18:57 UTCEG score recompute
  23. 2026-09-13 18:57 UTCGHSA enrichment
  24. 2026-09-13 06:11 UTCGHSA enrichment
  25. 2026-09-12 17:35 UTCEG score recompute
Show 71 more
  1. 2026-09-12 17:35 UTCGHSA enrichment
  2. 2026-09-12 04:59 UTCGHSA enrichment
  3. 2026-09-11 16:23 UTCEG score recompute
  4. 2026-09-11 16:23 UTCGHSA enrichment
  5. 2026-09-11 14:53 UTCEPSS rescore
  6. 2026-09-11 14:53 UTCEPSS rescore
  7. 2026-09-11 03:46 UTCGHSA enrichment
  8. 2026-09-10 15:10 UTCEG score recompute
  9. 2026-09-10 15:10 UTCGHSA enrichment
  10. 2026-09-10 02:34 UTCGHSA enrichment
  11. 2026-09-09 13:57 UTCGHSA enrichment
  12. 2026-09-09 01:14 UTCEG score recompute
  13. 2026-09-09 01:14 UTCGHSA enrichment
  14. 2026-09-08 22:01 UTCEPSS rescore
  15. 2026-09-08 05:42 UTCGHSA enrichment
  16. 2026-09-07 16:54 UTCEG score recompute
  17. 2026-09-07 16:54 UTCGHSA enrichment
  18. 2026-09-07 04:18 UTCGHSA enrichment
  19. 2026-09-06 15:41 UTCEG score recompute
  20. 2026-09-06 15:41 UTCGHSA enrichment
  21. 2026-09-06 13:48 UTCEPSS rescore
  22. 2026-09-06 03:05 UTCEG score recompute
  23. 2026-09-06 03:04 UTCGHSA enrichment
  24. 2026-09-05 14:27 UTCGHSA enrichment
  25. 2026-09-05 01:51 UTCEG score recompute
  26. 2026-09-05 01:51 UTCGHSA enrichment
  27. 2026-09-04 13:15 UTCEG score recompute
  28. 2026-09-04 13:15 UTCGHSA enrichment
  29. 2026-09-04 05:07 UTCEPSS rescore
  30. 2026-09-04 00:37 UTCGHSA enrichment
  31. 2026-09-03 12:01 UTCGHSA enrichment
  32. 2026-09-02 23:10 UTCEG score recompute
  33. 2026-09-02 23:09 UTCGHSA enrichment
  34. 2026-09-02 14:12 UTCEPSS rescore
  35. 2026-09-02 10:32 UTCGHSA enrichment
  36. 2026-09-01 21:54 UTCEG score recompute
  37. 2026-09-01 21:54 UTCGHSA enrichment
  38. 2026-09-01 13:54 UTCEPSS rescore
  39. 2026-09-01 09:18 UTCEG score recompute
  40. 2026-09-01 09:18 UTCGHSA enrichment
  41. 2026-09-01 04:40 UTCEPSS rescore
  42. 2026-09-01 04:40 UTCEPSS rescore
  43. 2026-08-31 20:41 UTCGHSA enrichment
  44. 2026-08-31 17:38 UTCGHSA enrichment
  45. 2026-08-31 02:45 UTCEG score recompute
  46. 2026-08-31 02:45 UTCGHSA enrichment
  47. 2026-08-30 19:18 UTCEPSS rescore
  48. 2026-08-30 19:17 UTCEPSS rescore
  49. 2026-08-30 14:09 UTCGHSA enrichment
  50. 2026-08-30 01:32 UTCEG score recompute
  51. 2026-08-30 01:32 UTCGHSA enrichment
  52. 2026-08-30 01:22 UTCEPSS rescore
  53. 2026-08-29 12:55 UTCGHSA enrichment
  54. 2026-08-29 00:16 UTCEG score recompute
  55. 2026-08-29 00:16 UTCGHSA enrichment
  56. 2026-08-28 21:42 UTCEPSS rescore
  57. 2026-08-28 07:19 UTCGHSA enrichment
  58. 2026-08-27 18:42 UTCEG score recompute
  59. 2026-08-27 18:42 UTCGHSA enrichment
  60. 2026-08-27 14:25 UTCEPSS rescore
  61. 2026-08-27 06:05 UTCGHSA enrichment
  62. 2026-08-26 17:23 UTCEG score recompute
  63. 2026-08-26 17:23 UTCGHSA enrichment
  64. 2026-08-26 16:23 UTCEG score recompute
  65. 2026-08-26 16:22 UTCGHSA enrichment
  66. 2026-08-26 14:47 UTCEPSS rescore
  67. 2026-08-26 05:01 UTCEG score recompute
  68. 2026-08-26 05:01 UTCGHSA enrichment
  69. 2026-08-25 16:24 UTCEG score recompute
  70. 2026-08-25 15:30 UTCEG score recompute
  71. 2026-08-25 15:29 UTCMITRE cvelistV5first tracked

Frequently asked(5)

What is CVE-2026-79774?
CVE-2026-79774 is a high vulnerability published on August 25, 2026. Winter CMS versions before 1.2.13 contain an incomplete fix for a Twig sandbox escape vulnerability in System\\Twig\\SecurityPolicy that allows authenticated backend users with template-editing permissions to bypass sandbox restrictions. Attackers can exploit method forwarding through Eloquent…
When was CVE-2026-79774 disclosed?
CVE-2026-79774 was first published in the National Vulnerability Database on August 25, 2026, with the most recent update on August 31, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2026-79774 actively exploited?
CVE-2026-79774 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 63.2% of all scored CVEs.
What is the CVSS score of CVE-2026-79774?
CVE-2026-79774 has a CVSS v3 base score of 8.4 (NVD).
How do I remediate CVE-2026-79774?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2026-79774, 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

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