CVE-2026-100673

HIGHPre-NVD 8.28.2—
EchelonGraph scoreHIGH confidence

Score 8.2 from GitHub Security Advisory (severity: HIGH) published 2026-09-26. A secondary CVSS source baseline 8.2; sources differ by 0.0.

Triggered by: GitHub Security Advisory CVSS
Sources: epss, ghsa, secondary
Trending — 3 sources updated this week
8.2EG
EchelonGraph verdictPlan a fixSerious severity, but no confirmed exploitation yet.
  • High severity, but no confirmed exploitation yet
CISA-KEV: Not listedEPSS PROB: 0.3%CVSS: 8.2Exploit: None knownExposed services: Not assessed

A fix is available — apply it.

The Grav Data Manager plugin (getgrav/grav-plugin-datamanager) versions 1.0.1 through 1.4.4 render stored data entries in the item-detail view (admin/templates/partials/item.html.twig) without escaping, applying Twig's raw filter — in some cases after a striptags('') call that PHP's strip_tags() bypasses by preserving allowed tags together with their attributes. An unauthenticated visitor who submits a front-end form whose submissions are saved to user/data can store an HTML payload that executes as JavaScript in the session and origin of an administrator who later opens that entry in the classic admin panel, running with that administrator's privileges and CSRF token. Execution occurs without further interaction for list values (such as checkbox or multi-select fields) and on hover for ordinary text fields. Sites using the Grav 2.0 Admin Next interface are not affected, because it renders the same data through a separate, correctly escaping code path. The issue is fixed in Data Manager 1.4.5.

CVSS v3
8.2
EG Score
8.2HIGHhigh confidence
EG Risk
37
EG Risk 37/100CISA 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
Severity82% × 45%
Exploitation0% × 40%
Automatability0% × 15%
CISA SSVC: Track at every mission impact level.
Action: A fix is available. Apply it within your standard update timelines.
EPSS PROB
0.3%
EPSS %ILE
20th
KEV
Not listed

CISA SSVCTrack at every mission impact level.

A fix is available. Apply it within your standard update timelines.

Exploitation none (CISA Vulnrichment) · Automatable no (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 26, 2026

Last Modified

September 30, 2026

Advisory Details (2)

Auto-updated Sep 26, 2026
Patch available. Sources: github.
generic

Grav Data Manager before 1.4.5 Stored XSS via item-detail view | Advisories | VulnCheck

https://www.vulncheck.com/advisories/grav-data-manager-before-1.4.5-stored-xss-via-item-detail-view
github Patch Available

Stored cross-site scripting in the Data Manager item view · Advisory · getgrav/grav · GitHub

https://github.com/getgrav/grav/security/advisories/GHSA-863q-9v8v-m9fv

Vendor Advisories for CVE-2026-100673(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 35× in last 7d / 40× 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 09:26 UTCGHSA enrichment
  2. 2026-10-03 21:27 UTCEG score recompute
  3. 2026-10-03 21:27 UTCGHSA enrichment
  4. 2026-10-03 14:25 UTCEPSS rescore
  5. 2026-10-03 09:28 UTCGHSA enrichment
  6. 2026-10-02 21:28 UTCEG score recompute
  7. 2026-10-02 21:27 UTCGHSA enrichment
  8. 2026-10-02 09:24 UTCGHSA enrichment
  9. 2026-10-01 21:26 UTCEG score recompute
  10. 2026-10-01 21:26 UTCGHSA enrichment
  11. 2026-10-01 19:49 UTCEPSS rescore
  12. 2026-10-01 09:28 UTCGHSA enrichment
  13. 2026-09-30 21:30 UTCEG score recompute
  14. 2026-09-30 21:30 UTCGHSA enrichment
  15. 2026-09-30 20:27 UTCEG score recompute
  16. 2026-09-30 20:27 UTCGHSA enrichment
  17. 2026-09-30 18:13 UTCEG score recompute
  18. 2026-09-30 18:13 UTCGHSA enrichment
  19. 2026-09-30 15:02 UTCEPSS rescore
  20. 2026-09-30 06:12 UTCGHSA enrichment
  21. 2026-09-29 18:14 UTCEG score recompute
  22. 2026-09-29 18:13 UTCGHSA enrichment
  23. 2026-09-29 15:20 UTCEPSS rescore
  24. 2026-09-29 05:21 UTCEG score recompute
  25. 2026-09-29 05:21 UTCGHSA enrichment
Show 15 more
  1. 2026-09-28 17:23 UTCEG score recompute
  2. 2026-09-28 17:22 UTCGHSA enrichment
  3. 2026-09-28 13:50 UTCEPSS rescore
  4. 2026-09-28 05:22 UTCGHSA enrichment
  5. 2026-09-27 17:24 UTCEG score recompute
  6. 2026-09-27 17:24 UTCGHSA enrichment
  7. 2026-09-27 16:35 UTCEG score recompute
  8. 2026-09-27 16:35 UTCGHSA enrichment
  9. 2026-09-27 14:30 UTCEG score recompute
  10. 2026-09-27 14:30 UTCGHSA enrichment
  11. 2026-09-27 02:32 UTCEG score recompute
  12. 2026-09-27 02:32 UTCGHSA enrichment
  13. 2026-09-26 14:33 UTCEG score recompute
  14. 2026-09-26 13:37 UTCEG score recompute
  15. 2026-09-26 13:30 UTCMITRE cvelistV5first tracked

Related CVEs(same CWE)

Frequently asked(5)

What is CVE-2026-100673?
CVE-2026-100673 is a high vulnerability published on September 26, 2026. The Grav Data Manager plugin (getgrav/grav-plugin-datamanager) versions 1.0.1 through 1.4.4 render stored data entries in the item-detail view (admin/templates/partials/item.html.twig) without escaping, applying Twig's raw filter — in some cases after a striptags('<br>') call that PHP's…
When was CVE-2026-100673 disclosed?
CVE-2026-100673 was first published on September 26, 2026, with the most recent update on September 30, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2026-100673 actively exploited?
CVE-2026-100673 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 0.3% probability of exploitation in the next 30 days (20th percentile of EPSS-scored CVEs).
What is the CVSS score of CVE-2026-100673?
CVE-2026-100673 has a CVSS base score of 8.2 (a secondary CVSS source that NVD displays; NVD's own analysis pending).
How do I remediate CVE-2026-100673?
A fix for CVE-2026-100673 is available: update to the fixed version the vendor names in its advisory. The vendor advisories EchelonGraph has for CVE-2026-100673 are linked in the Vendor Advisories panel on this page.

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