CVE-2026-97864

MEDIUMPre-NVD 5.35.3—
EchelonGraph scoreHIGH confidence

Score 5.3 from GitHub Security Advisory published 2026-09-25. A secondary CVSS source baseline 5.3; sources differ by 0.0.

Triggered by: GitHub Security Advisory CVSS
Sources: epss, ghsa, secondary
Trending — 3 sources updated this weekElevated
5.3EG
EchelonGraph verdictMonitorLow exploitation likelihood right now — keep watching.
  • Lower severity and no public exploit yet
CISA-KEV: Not listedEPSS PROB: 0.7%CVSS: 5.3Exploit: Elevated riskExposed services: Not assessed

An upstream fix is merged but not yet released — mitigate (WAF / firewall / segmentation) until the release ships, then apply it.

A vulnerability has been found in GibbonEdu Gibbon up to 30.0.01. The affected element is the function makeBlock of the file modules/Planner/units_add_blockAjax.php of the component Unit Planner. The manipulation of the argument gibbonUnitBlockID/mode leads to missing authentication. The attack is possible to be carried out remotely. The exploit has been disclosed to the public and may be used. Upgrading to version 31.0.00 is sufficient to fix this issue. The identifier of the patch is 07e719368eae8dfb4e22e19424ceab6074164ebc. It is recommended to upgrade the affected component.

CVSS v3
5.3
EG Score
5.3MEDIUMhigh confidence
EG Risk
55
EG Risk 55/100CISA 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
Severity53% × 45%
Exploitation40% × 40%
Automatability100% × 15%
CISA SSVC: Track at low or medium mission impact; Attend at high (mission-essential systems).
Action: An upstream fix is merged but not yet in a tagged release. 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 until it ships, then apply the release.
EPSS PROB
0.7%
EPSS %ILE
52nd
KEV
Not listed

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

An upstream fix is merged but not yet in a tagged release. 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 until it ships, then apply the release.

Exploitation public PoC (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 25, 2026

Last Modified

September 28, 2026

Advisory Details (4)

Auto-updated Sep 25, 2026
Upstream fix merged — awaiting tagged release. Sources: github_pr, github_commit.
generic

Comparing v31.0.00...v31.0.00 · GibbonEdu/core · GitHub

https://github.com/GibbonEdu/core/compare/v31.0.00
github_commit

commit 07e719368eae (GibbonEdu/core)

Fix landed in GibbonEdu/core commit 07e719368eae — awaiting tagged release

https://github.com/GibbonEdu/core/commit/07e719368eae8dfb4e22e19424ceab6074164ebc
github_pr

Fix code-type custom fields becoming uneditable in course context

Fix merged in GibbonEdu/core PR #2095 on 2026-04-24 — awaiting tagged release

https://github.com/GibbonEdu/core/pull/2095
github_pr

Fix code-type custom fields becoming uneditable in course context

Upstream fix in progress (PR #2090 · GibbonEdu/core, state=closed)

https://github.com/GibbonEdu/core/pull/2090

Vendor Advisories for CVE-2026-97864(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 25× in last 7d / 33× 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 12:33 UTCEG score recompute
  2. 2026-10-04 12:33 UTCGHSA enrichment
  3. 2026-10-03 14:26 UTCEPSS rescore
  4. 2026-10-03 13:04 UTCEG score recompute
  5. 2026-10-03 13:04 UTCGHSA enrichment
  6. 2026-10-02 17:57 UTCEPSS rescore
  7. 2026-10-02 13:35 UTCEG score recompute
  8. 2026-10-02 13:35 UTCGHSA enrichment
  9. 2026-10-01 19:51 UTCEPSS rescore
  10. 2026-10-01 14:05 UTCEG score recompute
  11. 2026-10-01 14:05 UTCGHSA enrichment
  12. 2026-09-30 15:04 UTCEPSS rescore
  13. 2026-09-30 14:37 UTCEG score recompute
  14. 2026-09-30 14:36 UTCGHSA enrichment
  15. 2026-09-29 15:02 UTCEG score recompute
  16. 2026-09-29 15:01 UTCGHSA enrichment
  17. 2026-09-28 15:33 UTCEG score recompute
  18. 2026-09-28 15:33 UTCGHSA enrichment
  19. 2026-09-28 13:52 UTCEPSS rescore
  20. 2026-09-28 13:52 UTCEPSS rescore
  21. 2026-09-28 12:51 UTCEG score recompute
  22. 2026-09-28 12:51 UTCGHSA enrichment
  23. 2026-09-27 13:49 UTCEPSS rescore
  24. 2026-09-27 13:23 UTCEG score recompute
  25. 2026-09-27 13:23 UTCGHSA enrichment
Show 8 more
  1. 2026-09-26 15:59 UTCEPSS rescore
  2. 2026-09-26 13:55 UTCEG score recompute
  3. 2026-09-26 13:54 UTCGHSA enrichment
  4. 2026-09-25 14:23 UTCEG score recompute
  5. 2026-09-25 14:20 UTCNVD updateCVSS v4 → 5.5
  6. 2026-09-25 14:05 UTCEG score recompute
  7. 2026-09-25 13:19 UTCEG score recompute
  8. 2026-09-25 13:19 UTCMITRE cvelistV5first tracked

Related CVEs(same CWE)

Frequently asked(5)

What is CVE-2026-97864?
CVE-2026-97864 is a medium vulnerability published on September 25, 2026. A vulnerability has been found in GibbonEdu Gibbon up to 30.0.01. The affected element is the function makeBlock of the file modules/Planner/unitsaddblockAjax.php of the component Unit Planner. The manipulation of the argument gibbonUnitBlockID/mode leads to missing authentication. The attack is…
When was CVE-2026-97864 disclosed?
CVE-2026-97864 was first published on September 25, 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-2026-97864 actively exploited?
CVE-2026-97864 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 0.7% probability of exploitation in the next 30 days (52nd percentile of EPSS-scored CVEs).
What is the CVSS score of CVE-2026-97864?
CVE-2026-97864 has a CVSS base score of 5.3 (a secondary CVSS source that NVD displays; NVD's own analysis pending).
How do I remediate CVE-2026-97864?
An upstream fix for CVE-2026-97864 has been merged but is not yet in a tagged release. Until it ships, restrict network exposure of the affected system or apply the vendor's mitigation, then update to the release that contains the fix. The vendor advisories EchelonGraph has for CVE-2026-97864 are linked in the Vendor Advisories panel on this page.

Dependency Blast Radius

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