CVE-2026-36458

CRITICALNVD 9.89.8
EchelonGraph scoreMEDIUM confidence

“—” beside the score: it is equal to NVD's CVSS score.

Score 9.8 from GitHub Security Advisory (severity: CRITICAL) published 2026-05-07. NVD baseline CVSS 9.8; sources differ by 0.0.

Triggered by: GitHub Security Advisory CVSS
Sources: EPSS, GitHub Security Advisory, NVD CVSS v3
Trending — 3 sources updated this week
9.8EG
EchelonGraph verdictPlan mitigationRemediate within your standard update timelines at low or medium mission impact and sooner than that at high (the SSVC decision on this page).
  • High severity, but no confirmed exploitation yet
CISA-KEV: Not listedEPSS PROB: 0.5%CVSS: 9.8Exploit: None knownExposed services: Not assessed

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

ChestnutCMS v1.5.10 has a SQL injection vulnerability. The content parameter of the cms_content tag can be manipulated in the admin backend and injected into a SQL query when the template is rendered.

CVSS v3
9.8
EG Score
9.8CRITICALmedium confidence
EG Risk
59
EG Risk 59/100

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)
Severity98% × 45%
The EG Score, 9.8 of 10.
Exploitation0.5% × 40%
FIRST EPSS: the 30-day exploitation probability when EchelonGraph scored this CVE.
Automatability100% × 15%
CISA's SSVC Automatable value: yes (Vulnrichment).
SSVC (CISA's decision table, applied by EchelonGraph): Track at low or medium mission impact; Attend at high (mission-essential systems).
Exploitation none (CISA Vulnrichment) · Automatable yes (CISA Vulnrichment) · Technical impact total (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 within your standard update timelines at low or medium mission impact and sooner than that at high, and watch for a fix.
EPSS PROB
0.5%
EPSS %ILE
41st
KEV
Not listed

SSVC (CISA's decision table, applied by EchelonGraph)Track at low or medium mission impact; Attend at high (mission-essential systems).

No fix is confirmed yet. Restrict network exposure of the affected system within your standard update timelines at low or medium mission impact and sooner than that at high, and watch for a fix.

Exploitation none (CISA Vulnrichment) · Automatable yes (CISA Vulnrichment) · Technical impact total (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)3 days if the affected system is publicly exposed; 60 days if it is not.

In CISA KEV no (CISA's KEV catalog) · Automatable yes (CISA Vulnrichment) · Technical impact total (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

May 7, 2026

Last Modified

May 8, 2026

Advisory Details (2)

Auto-updated Oct 8, 2026
No fix on record yet.
Web page

GitHub - liweiyi/ChestnutCMS: ChestnutCMS是前后端分离的内容管理系统。技术栈：SpringBoot3 + VUE2 + MybatisPlus + Freemarker + ES + Redis + MySQL，项目基于RuoYi-Vue重构，集成SaToken用户权限，xxl-job任务调度。支持站群管理、多平台静态化、元数据模型扩展、轻松组织文章、音视频、图集等各种复杂内容形态、支持多语言、全文检索。 · GitHub

https://github.com/liweiyi/ChestnutCMS.git
Web page

CVE/CVE-2026-36458.md at main · errors11/CVE · GitHub

https://github.com/errors11/CVE/blob/main/CVE-2026-36458.md

Weakness Classification(1)

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

Data Freshness Timeline

(refreshed 20× in last 7d / 36× 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 99 of 345 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. 1 repeat row among the latest 100 is merged into the row it repeats. The 246 oldest rows on record are not shown and were not checked, so the counts can still include repeats.

  1. 2026-10-16 18:45 UTCEG score recompute
  2. 2026-10-16 18:45 UTCGHSA enrichmentGHSA-c3xh-mwgm-9f7j · GitHub severity CRITICAL · GitHub CVSS 9.8
  3. 2026-10-16 16:41 UTCEPSS rescoreEPSS 0.5% · 41st percentile
  4. 2026-10-15 16:32 UTCEPSS rescoreEPSS 0.5% · 41st percentile
  5. 2026-10-15 15:45 UTCEG score recompute
  6. 2026-10-15 15:45 UTCGHSA enrichmentGHSA-c3xh-mwgm-9f7j · GitHub severity CRITICAL · GitHub CVSS 9.8
  7. 2026-10-14 16:32 UTCEPSS rescoreEPSS 0.5% · 41st percentile
  8. 2026-10-14 09:59 UTCEG score recompute
  9. 2026-10-14 09:58 UTCGHSA enrichmentGHSA-c3xh-mwgm-9f7j · GitHub severity CRITICAL · GitHub CVSS 9.8
  10. 2026-10-13 16:34 UTCEPSS rescoreEPSS 0.5% · 40th percentile
  11. 2026-10-13 08:02 UTCEG score recompute
  12. 2026-10-13 08:02 UTCGHSA enrichmentGHSA-c3xh-mwgm-9f7j · GitHub severity CRITICAL · GitHub CVSS 9.8
  13. 2026-10-12 16:34 UTCEPSS rescoreEPSS 0.5% · 40th percentile
  14. 2026-10-12 16:11 UTCEG score recompute
  15. 2026-10-12 08:15 UTCGHSA enrichmentGHSA-c3xh-mwgm-9f7j · GitHub severity CRITICAL · GitHub CVSS 9.8
  16. 2026-10-11 19:53 UTCEG score recompute
  17. 2026-10-11 17:06 UTCEG score recompute
  18. 2026-10-11 14:33 UTCEG score recompute
  19. 2026-10-11 13:48 UTCEPSS rescoreEPSS 0.5% · 40th percentile
  20. 2026-10-10 20:00 UTCEPSS rescoreEPSS 0.5% · 40th percentile
  21. 2026-10-09 20:07 UTCEPSS rescoreEPSS 0.5% · 40th percentile
  22. 2026-10-08 17:12 UTCEPSS rescoreEPSS 0.5% · 40th percentile
  23. 2026-10-07 23:48 UTCEPSS rescoreEPSS 0.5% · 40th percentile
  24. 2026-10-06 15:17 UTCEPSS rescoreEPSS 0.5% · 40th percentile
  25. 2026-10-05 17:42 UTCEPSS rescoreEPSS 0.5% · 40th percentile
Show 74 more
  1. 2026-10-04 23:22 UTCEPSS rescoreEPSS 0.5% · 40th percentile
  2. 2026-10-03 14:25 UTCEPSS rescoreEPSS 0.5% · 40th percentile
  3. 2026-10-01 19:49 UTCEPSS rescoreEPSS 0.5% · 40th percentile
  4. 2026-09-30 15:03 UTCEPSS rescoreEPSS 0.5% · 40th percentile
  5. 2026-09-28 13:51 UTCEPSS rescoreEPSS 0.5% · 40th percentile
  6. 2026-09-27 13:48 UTCEPSS rescoreEPSS 0.5% · 40th percentile
  7. 2026-09-26 15:58 UTCEPSS rescoreEPSS 0.5% · 40th percentile
  8. 2026-09-26 00:26 UTCEPSS rescoreEPSS 0.5% · 40th percentile
  9. 2026-09-20 20:15 UTCEPSS rescoreEPSS 0.4% · 31st percentile
  10. 2026-09-18 19:28 UTCEPSS rescoreEPSS 0.4% · 31st percentile
  11. 2026-09-17 19:30 UTCEPSS rescoreEPSS 0.4% · 30th percentile
  12. 2026-09-16 14:08 UTCEPSS rescoreEPSS 0.4% · 30th percentile
  13. 2026-09-16 05:15 UTCEPSS rescoreEPSS 0.4% · 30th percentile
  14. 2026-09-15 03:11 UTCEPSS rescoreEPSS 0.4% · 30th percentile
  15. 2026-09-13 16:47 UTCEPSS rescoreEPSS 0.4% · 30th percentile
  16. 2026-09-12 15:01 UTCEPSS rescoreEPSS 0.4% · 30th percentile
  17. 2026-09-11 14:53 UTCEPSS rescoreEPSS 0.4% · 30th percentile
  18. 2026-09-11 09:37 UTCEPSS rescoreEPSS 0.4% · 30th percentile
  19. 2026-09-10 09:34 UTCEPSS rescoreEPSS 0.4% · 30th percentile
  20. 2026-09-08 22:00 UTCEPSS rescoreEPSS 0.4% · 30th percentile
  21. 2026-09-07 16:01 UTCEPSS rescoreEPSS 0.4% · 30th percentile
  22. 2026-09-06 13:47 UTCEPSS rescoreEPSS 0.4% · 30th percentile
  23. 2026-09-04 05:06 UTCEPSS rescoreEPSS 0.4% · 30th percentile
  24. 2026-09-02 14:12 UTCEPSS rescoreEPSS 0.4% · 30th percentile
  25. 2026-09-01 13:53 UTCEPSS rescoreEPSS 0.4% · 30th percentile
  26. 2026-09-01 04:39 UTCEPSS rescoreEPSS 0.4% · 30th percentile
  27. 2026-08-30 19:17 UTCEPSS rescoreEPSS 0.4% · 30th percentile
  28. 2026-08-30 01:22 UTCEPSS rescoreEPSS 0.4% · 30th percentile
  29. 2026-08-28 21:41 UTCEPSS rescoreEPSS 0.4% · 30th percentile
  30. 2026-08-27 14:25 UTCEPSS rescoreEPSS 0.4% · 30th percentile
  31. 2026-08-26 14:46 UTCEPSS rescoreEPSS 0.4% · 30th percentile
  32. 2026-08-25 13:49 UTCEPSS rescoreEPSS 0.4% · 29th percentile
  33. 2026-08-23 19:36 UTCEG score recompute
  34. 2026-08-23 19:36 UTCGHSA enrichmentGHSA-c3xh-mwgm-9f7j · GitHub severity CRITICAL · GitHub CVSS 9.8
  35. 2026-08-23 00:19 UTCEPSS rescoreEPSS 0.4% · 30th percentile
  36. 2026-08-21 23:49 UTCEPSS rescoreEPSS 0.4% · 30th percentile
  37. 2026-08-20 22:55 UTCEPSS rescoreEPSS 0.4% · 30th percentile
  38. 2026-08-19 17:03 UTCEPSS rescoreEPSS 0.4% · 30th percentile
  39. 2026-08-18 13:48 UTCEPSS rescoreEPSS 0.4% · 30th percentile
  40. 2026-08-17 13:47 UTCEPSS rescoreEPSS 0.4% · 30th percentile
  41. 2026-08-17 12:44 UTCEG score recompute
  42. 2026-08-17 12:44 UTCGHSA enrichmentGHSA-c3xh-mwgm-9f7j · GitHub severity CRITICAL · GitHub CVSS 9.8
  43. 2026-08-16 14:56 UTCEPSS rescoreEPSS 0.4% · 30th percentile
  44. 2026-08-16 12:24 UTCGHSA enrichmentGHSA-c3xh-mwgm-9f7j · GitHub severity CRITICAL · GitHub CVSS 9.8
  45. 2026-08-16 08:34 UTCGHSA enrichmentGHSA-c3xh-mwgm-9f7j · GitHub severity CRITICAL · GitHub CVSS 9.8
  46. 2026-08-16 04:44 UTCEG score recompute
  47. 2026-08-16 04:44 UTCGHSA enrichmentGHSA-c3xh-mwgm-9f7j · GitHub severity CRITICAL · GitHub CVSS 9.8
  48. 2026-08-16 02:14 UTCEPSS rescoreEPSS 0.4% · 30th percentile
  49. 2026-08-15 02:23 UTCEG score recompute
  50. 2026-08-15 02:23 UTCGHSA enrichmentGHSA-c3xh-mwgm-9f7j · GitHub severity CRITICAL · GitHub CVSS 9.8
  51. 2026-08-15 01:30 UTCEPSS rescoreEPSS 0.4% · 30th percentile
  52. 2026-08-14 22:33 UTCGHSA enrichmentGHSA-c3xh-mwgm-9f7j · GitHub severity CRITICAL · GitHub CVSS 9.8
  53. 2026-08-14 18:43 UTCGHSA enrichmentGHSA-c3xh-mwgm-9f7j · GitHub severity CRITICAL · GitHub CVSS 9.8
  54. 2026-08-14 14:49 UTCGHSA enrichmentGHSA-c3xh-mwgm-9f7j · GitHub severity CRITICAL · GitHub CVSS 9.8
  55. 2026-08-14 10:59 UTCGHSA enrichmentGHSA-c3xh-mwgm-9f7j · GitHub severity CRITICAL · GitHub CVSS 9.8
  56. 2026-08-14 07:09 UTCGHSA enrichmentGHSA-c3xh-mwgm-9f7j · GitHub severity CRITICAL · GitHub CVSS 9.8
  57. 2026-08-14 03:19 UTCEG score recompute
  58. 2026-08-14 03:19 UTCGHSA enrichmentGHSA-c3xh-mwgm-9f7j · GitHub severity CRITICAL · GitHub CVSS 9.8
  59. 2026-08-13 22:00 UTCEPSS rescoreEPSS 0.4% · 30th percentile
  60. 2026-08-13 08:20 UTCGHSA enrichmentGHSA-c3xh-mwgm-9f7j · GitHub severity CRITICAL · GitHub CVSS 9.8
  61. 2026-08-13 04:24 UTCGHSA enrichmentGHSA-c3xh-mwgm-9f7j · GitHub severity CRITICAL · GitHub CVSS 9.8
  62. 2026-08-13 00:33 UTCGHSA enrichmentGHSA-c3xh-mwgm-9f7j · GitHub severity CRITICAL · GitHub CVSS 9.8
  63. 2026-08-12 20:43 UTCGHSA enrichmentGHSA-c3xh-mwgm-9f7j · GitHub severity CRITICAL · GitHub CVSS 9.8
  64. 2026-08-12 16:53 UTCEG score recompute
  65. 2026-08-12 16:53 UTCGHSA enrichmentGHSA-c3xh-mwgm-9f7j · GitHub severity CRITICAL · GitHub CVSS 9.8
  66. 2026-08-12 13:51 UTCEPSS rescoreEPSS 0.4% · 30th percentile
  67. 2026-08-11 23:35 UTCGHSA enrichmentGHSA-c3xh-mwgm-9f7j · GitHub severity CRITICAL · GitHub CVSS 9.8
  68. 2026-08-11 19:45 UTCGHSA enrichmentGHSA-c3xh-mwgm-9f7j · GitHub severity CRITICAL · GitHub CVSS 9.8
  69. 2026-08-11 15:55 UTCEG score recompute
  70. 2026-08-11 15:55 UTCGHSA enrichmentGHSA-c3xh-mwgm-9f7j · GitHub severity CRITICAL · GitHub CVSS 9.8
  71. 2026-08-11 09:05 UTCGHSA enrichmentGHSA-c3xh-mwgm-9f7j · GitHub severity CRITICAL · GitHub CVSS 9.8
  72. 2026-08-11 05:15 UTCGHSA enrichmentGHSA-c3xh-mwgm-9f7j · GitHub severity CRITICAL · GitHub CVSS 9.8
  73. 2026-08-11 01:25 UTCEG score recompute
  74. 2026-08-11 01:25 UTCGHSA enrichmentGHSA-c3xh-mwgm-9f7j · GitHub severity CRITICAL · GitHub CVSS 9.8

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Frequently asked(5)

What is CVE-2026-36458?
CVE-2026-36458 is a critical-severity vulnerability; its CVE record was published on May 7, 2026. ChestnutCMS v1.5.10 has a SQL injection vulnerability. The content parameter of the cms_content tag can be manipulated in the admin backend and injected into a SQL query when the template is rendered.
When was the CVE record for CVE-2026-36458 published?
The CVE record for CVE-2026-36458 was published on May 7, 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 May 8, 2026; the record at its source may have been updated since.
Is CVE-2026-36458 actively exploited?
CVE-2026-36458 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 0.5% probability of exploitation in the next 30 days (41st percentile of EPSS-scored CVEs).
What is the CVSS score of CVE-2026-36458?
CVE-2026-36458 has a CVSS v3 base score of 9.8 (NVD).
How do I remediate CVE-2026-36458?
No fix for CVE-2026-36458 is confirmed yet. Until one is published, restrict network exposure of the affected system — for example, keep it off the internet or limit it to trusted networks — and watch for a fix.

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