CVE-2026-100874

HIGHPre-NVD 7.37.3—
EchelonGraph scoreHIGH confidence

Score 7.3 from GitHub Security Advisory published 2026-09-27. A secondary CVSS source baseline 7.3; sources differ by 0.0.

Triggered by: GitHub Security Advisory CVSS
Sources: epss, ghsa, secondary
Trending — 5 sources updated this week
7.3EG
EchelonGraph verdictPlan mitigationSerious severity, but no confirmed exploitation yet.
  • High severity, but no confirmed exploitation yet
CISA-KEV: Not listedEPSS PROB: 0.3%CVSS: 7.3Exploit: None knownExposed services: Not assessed

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

A flaw has been found in mathurvishal CloudClassroom-PHP-Project up to 5dadec098bfbbf3300d60c3494db3fb95b66e7be. This affects an unknown function of the file addnewstudent.php. This manipulation causes sql injection. The attack may be initiated remotely. The exploit has been published and may be used. This product uses a rolling release model to deliver continuous updates. As a result, specific version information for affected or updated releases is not available. The vendor was contacted early about this disclosure but did not respond in any way.

CVSS v3
7.3
EG Score
7.3HIGHhigh confidence
EG Risk
48
EG Risk 48/100CISA SSVC

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
Severity73% × 45%
Exploitation0% × 40%
Automatability100% × 15%
CISA SSVC: Track at low or medium mission impact; Attend at high (mission-essential systems).
Action: No fix is confirmed yet. Restrict network exposure of the affected system or apply the vendor's mitigation within your standard update timelines at low or medium mission impact and sooner than that at high, and watch the vendor's advisory for the fix.
EPSS PROB
0.3%
EPSS %ILE
15th
KEV
Not listed

CISA SSVCTrack at low or medium mission impact; Attend at high (mission-essential systems).

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

Exploitation none (CISA Vulnrichment) · Automatable yes (CISA Vulnrichment) · Technical impact partial (CISA Vulnrichment). Mission impact is CISA's Mission & Well-being decision point, and only you can judge it: high means the affected system is essential to your organisation's mission, or its compromise could cause irreversible harm to people. CISA's decision table

Published

September 27, 2026

Last Modified

September 28, 2026

References (5)

Vendor Advisories for CVE-2026-100874(1)

These vendors published their own advisory mentioning this CVE — often with vendor-specific remediation steps + affected product lists not in NVD.

Weakness Classification(2)

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

Data Freshness Timeline

(refreshed 37× in last 7d / 37× 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. 2026-10-04 07:16 UTCGHSA enrichment
  2. 2026-10-03 18:56 UTCEG score recompute
  3. 2026-10-03 18:56 UTCGHSA enrichment
  4. 2026-10-03 14:25 UTCEPSS rescore
  5. 2026-10-03 06:36 UTCGHSA enrichment
  6. 2026-10-02 18:16 UTCGHSA enrichment
  7. 2026-10-02 18:16 UTCEG score recompute
  8. 2026-10-02 18:16 UTCGHSA enrichment
  9. 2026-10-02 18:16 UTCGHSA enrichment
  10. 2026-10-02 05:51 UTCEG score recompute
  11. 2026-10-02 05:51 UTCGHSA enrichment
  12. 2026-10-01 19:49 UTCEPSS rescore
  13. 2026-10-01 17:31 UTCGHSA enrichment
  14. 2026-10-01 05:11 UTCGHSA enrichment
  15. 2026-09-30 16:51 UTCEG score recompute
  16. 2026-09-30 16:51 UTCGHSA enrichment
  17. 2026-09-30 15:02 UTCEPSS rescore
  18. 2026-09-30 04:31 UTCGHSA enrichment
  19. 2026-09-29 16:09 UTCEG score recompute
  20. 2026-09-29 16:09 UTCGHSA enrichment
  21. 2026-09-29 15:20 UTCEPSS rescore
  22. 2026-09-29 03:49 UTCEG score recompute
  23. 2026-09-29 03:49 UTCGHSA enrichment
  24. 2026-09-28 15:29 UTCGHSA enrichment
  25. 2026-09-28 14:26 UTCEG score recompute
Show 12 more
  1. 2026-09-28 14:26 UTCGHSA enrichment
  2. 2026-09-28 14:23 UTCNVD updateCVSS v4 → 5.5
  3. 2026-09-28 14:02 UTCEG score recompute
  4. 2026-09-28 14:02 UTCGHSA enrichment
  5. 2026-09-28 14:01 UTCMITRE cvelistV5CVSS v4 → 6.9
  6. 2026-09-28 13:50 UTCEPSS rescore
  7. 2026-09-28 07:46 UTCEG score recompute
  8. 2026-09-28 07:46 UTCGHSA enrichment
  9. 2026-09-27 19:26 UTCEG score recompute
  10. 2026-09-27 19:24 UTCNVD updateCVSS v4 → 5.5
  11. 2026-09-27 18:38 UTCEG score recompute
  12. 2026-09-27 18:37 UTCMITRE cvelistV5first tracked

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Frequently asked(5)

What is CVE-2026-100874?
CVE-2026-100874 is a high vulnerability published on September 27, 2026. A flaw has been found in mathurvishal CloudClassroom-PHP-Project up to 5dadec098bfbbf3300d60c3494db3fb95b66e7be. This affects an unknown function of the file addnewstudent.php. This manipulation causes sql injection. The attack may be initiated remotely. The exploit has been published and may be…
When was CVE-2026-100874 disclosed?
CVE-2026-100874 was first published on September 27, 2026, with the most recent update on September 28, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2026-100874 actively exploited?
CVE-2026-100874 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 0.3% probability of exploitation in the next 30 days (15th percentile of EPSS-scored CVEs).
What is the CVSS score of CVE-2026-100874?
CVE-2026-100874 has a CVSS base score of 7.3 (a secondary CVSS source that NVD displays; NVD's own analysis pending).
How do I remediate CVE-2026-100874?
No fix for CVE-2026-100874 is confirmed yet. Until one is published, restrict network exposure of the affected system or apply the vendor's mitigation — for example, keep it off the internet or limit it to trusted networks — and watch the vendor's advisory for the fix. The vendor advisories EchelonGraph has for CVE-2026-100874 are linked in the Vendor Advisories panel on this page.

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