CVE-2026-75458

HIGHPre-NVD 8.18.1—
EchelonGraph scoreHIGH confidence

Score 8.1 from GitHub Security Advisory (severity: HIGH) published 2026-08-31. CISA-ADP (Vulnrichment) CVSS v3.1 baseline 8.1; sources differ by 0.0.

Triggered by: GitHub Security Advisory CVSS
Sources: cisa-adp, epss, ghsa
Trending — 3 sources updated this weekElevated
8.1EG
EchelonGraph verdictPlan a fixSerious severity, but no confirmed exploitation yet.
  • High severity, but no confirmed exploitation yet
CISA-KEV: Not listedEPSS PROB: 0%CVSS: 8.1Exploit: Elevated riskExposed: 0

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

The teacher-end interface POST /api/teacher/user/delete/{id} in XueZhiSi Open Source Exam System <= 3.9.0 contains a vertical privilege escalatio vulnerability. This interface accepts a user ID and then executes getUserById(id), setDeleted(true), updateByIdFilter() in sequence, without any validation of whether the current user has the authority to delete the target user. An authenticated teacher user (role=2) can delete an administrator account (role=3), constituting a vertical privilege escalation where a lower-privileged user performs a high-privileged operation.

CVSS v3
8.1
EG Score
8.1(high)
EG Risk
52(Track)
EG Risk 52/100SSVC: 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
Severity81% × 45%
Exploitation40% × 40%
Automatability0% × 15%
Action: Routine — remediate on your standard cadence.
EPSS PROB
0%
EPSS %ILE
18%
KEV
Not listed

Published

August 31, 2026

Last Modified

September 1, 2026

Advisory Details (1)

Auto-updated Sep 1, 2026
No patch confirmed yet.
generic

Comparing mindskip:master...1258129581:patch-2 · mindskip/xzs · GitHub

https://github.com/mindskip/xzs/compare/master...1258129581:xzs:patch-2

Vendor Advisories for CVE-2026-75458(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 / 78× 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. 2026-09-20 20:16 UTCEPSS rescore
  2. 2026-09-20 20:11 UTCGHSA enrichment
  3. 2026-09-20 08:30 UTCGHSA enrichment
  4. 2026-09-19 20:49 UTCEG score recompute
  5. 2026-09-19 20:49 UTCGHSA enrichment
  6. 2026-09-19 09:08 UTCGHSA enrichment
  7. 2026-09-18 21:26 UTCEG score recompute
  8. 2026-09-18 21:26 UTCGHSA enrichment
  9. 2026-09-18 19:28 UTCEPSS rescore
  10. 2026-09-18 08:33 UTCGHSA enrichment
  11. 2026-09-17 20:51 UTCEG score recompute
  12. 2026-09-17 20:51 UTCGHSA enrichment
  13. 2026-09-17 09:10 UTCGHSA enrichment
  14. 2026-09-16 21:29 UTCEG score recompute
  15. 2026-09-16 21:29 UTCGHSA enrichment
  16. 2026-09-16 14:08 UTCEPSS rescore
  17. 2026-09-16 09:09 UTCEG score recompute
  18. 2026-09-16 09:09 UTCGHSA enrichment
  19. 2026-09-16 05:15 UTCEPSS rescore
  20. 2026-09-15 21:08 UTCGHSA enrichment
  21. 2026-09-15 09:26 UTCEG score recompute
  22. 2026-09-15 09:26 UTCGHSA enrichment
  23. 2026-09-15 03:12 UTCEPSS rescore
  24. 2026-09-14 21:45 UTCGHSA enrichment
  25. 2026-09-14 10:04 UTCGHSA enrichment
Show 53 more
  1. 2026-09-13 22:15 UTCEG score recompute
  2. 2026-09-13 22:15 UTCGHSA enrichment
  3. 2026-09-13 10:34 UTCGHSA enrichment
  4. 2026-09-12 22:51 UTCEG score recompute
  5. 2026-09-12 22:51 UTCGHSA enrichment
  6. 2026-09-12 15:02 UTCEPSS rescore
  7. 2026-09-12 11:10 UTCGHSA enrichment
  8. 2026-09-11 23:29 UTCEG score recompute
  9. 2026-09-11 23:29 UTCGHSA enrichment
  10. 2026-09-11 14:53 UTCEPSS rescore
  11. 2026-09-11 11:47 UTCEG score recompute
  12. 2026-09-11 11:47 UTCGHSA enrichment
  13. 2026-09-10 23:56 UTCGHSA enrichment
  14. 2026-09-10 11:44 UTCEG score recompute
  15. 2026-09-10 11:44 UTCGHSA enrichment
  16. 2026-09-10 09:35 UTCEPSS rescore
  17. 2026-09-09 23:49 UTCGHSA enrichment
  18. 2026-09-09 11:17 UTCGHSA enrichment
  19. 2026-09-08 23:36 UTCEG score recompute
  20. 2026-09-08 23:35 UTCGHSA enrichment
  21. 2026-09-08 22:01 UTCEPSS rescore
  22. 2026-09-08 05:17 UTCGHSA enrichment
  23. 2026-09-07 17:35 UTCEG score recompute
  24. 2026-09-07 17:35 UTCGHSA enrichment
  25. 2026-09-07 05:54 UTCGHSA enrichment
  26. 2026-09-06 18:12 UTCEG score recompute
  27. 2026-09-06 18:12 UTCGHSA enrichment
  28. 2026-09-06 13:48 UTCEPSS rescore
  29. 2026-09-06 06:31 UTCGHSA enrichment
  30. 2026-09-05 18:49 UTCEG score recompute
  31. 2026-09-05 18:49 UTCGHSA enrichment
  32. 2026-09-05 07:08 UTCGHSA enrichment
  33. 2026-09-04 19:27 UTCEG score recompute
  34. 2026-09-04 19:27 UTCGHSA enrichment
  35. 2026-09-04 07:42 UTCEG score recompute
  36. 2026-09-04 07:42 UTCGHSA enrichment
  37. 2026-09-04 05:07 UTCEPSS rescore
  38. 2026-09-03 19:57 UTCGHSA enrichment
  39. 2026-09-03 08:13 UTCGHSA enrichment
  40. 2026-09-02 20:32 UTCEG score recompute
  41. 2026-09-02 20:32 UTCGHSA enrichment
  42. 2026-09-02 14:12 UTCEPSS rescore
  43. 2026-09-02 08:51 UTCGHSA enrichment
  44. 2026-09-01 21:10 UTCGHSA enrichment
  45. 2026-09-01 15:56 UTCEG score recompute
  46. 2026-09-01 15:56 UTCGHSA enrichment
  47. 2026-09-01 14:56 UTCEG score recompute▲ 8.10
  48. 2026-09-01 14:56 UTCGHSA enrichment
  49. 2026-09-01 14:53 UTCMITRE cvelistV5CVSS v3 → 8.1 · severity → HIGH
  50. 2026-09-01 13:54 UTCEPSS rescore
  51. 2026-08-31 21:21 UTCNVD update
  52. 2026-08-31 20:21 UTCEG score recompute
  53. 2026-08-31 20:21 UTCMITRE cvelistV5first tracked

Related CVEs(same CWE)

Frequently asked(5)

What is CVE-2026-75458?
CVE-2026-75458 is a high vulnerability published on August 31, 2026. The teacher-end interface POST /api/teacher/user/delete/{id} in XueZhiSi Open Source Exam System <= 3.9.0 contains a vertical privilege escalatio vulnerability. This interface accepts a user ID and then executes getUserById(id), setDeleted(true), updateByIdFilter() in sequence, without any…
When was CVE-2026-75458 disclosed?
CVE-2026-75458 was first published in the National Vulnerability Database on August 31, 2026, with the most recent update on September 1, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2026-75458 actively exploited?
CVE-2026-75458 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 82.1% of all scored CVEs.
What is the CVSS score of CVE-2026-75458?
CVE-2026-75458 has a CVSS v3.1 base score of 8.1 (CISA-ADP / Vulnrichment enrichment; NVD's own analysis pending).
How do I remediate CVE-2026-75458?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2026-75458, 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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