CVE-2026-72821

MEDIUMPre-NVD 5.45.4—
EchelonGraph scoreHIGH confidence

Score 5.4 from GitHub Security Advisory published 2026-08-14. a secondary CVSS source baseline 5.4; sources differ by 0.0.

Triggered by: GitHub Security Advisory CVSS
Sources: epss, ghsa, secondary
Trending — 4 sources updated this weekElevated
5.4EG
EchelonGraph verdictMonitorLow exploitation likelihood right now — keep watching.
  • Lower severity and no public exploit yet
CISA-KEV: Not listedEPSS PROB: 0%CVSS: 5.4Exploit: Elevated riskExposed: 0

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

Grav Form plugin versions before 9.1.15 contain a stored cross-site scripting vulnerability in radio and toggle field option labels rendered with the Twig |raw filter. Attackers with form authoring permissions can inject HTML and script payloads in option labels that execute in the browsers of visitors and administrators viewing the form.

CVSS v3
5.4
EG Score
5.4(high)
EG Risk
40(Track)
EG Risk 40/100SSVC: 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
Severity54% × 45%
Exploitation40% × 40%
Automatability0% × 15%
Action: Routine — remediate on your standard cadence.
EPSS PROB
0%
EPSS %ILE
4%
KEV
Not listed

Published

August 14, 2026

Last Modified

August 18, 2026

Advisory Details (2)

Auto-updated Aug 14, 2026
🔬 Proof of concept available. Patch available. Sources: github.
generic

Grav Form Plugin before 9.1.15 Stored XSS via Radio Toggle | Advisories | VulnCheck

https://www.vulncheck.com/advisories/grav-form-plugin-before-stored-xss-via-radio-toggle
github Patch Available🟡 PoC Available

Stored XSS in Grav Form plugin: radio and toggle option labels rendered with |raw (unpatched siblings of GHSA-c2q3-p4jr-c55f / CVE-2026-42842) · Advisory · getgrav/grav · GitHub

https://github.com/getgrav/grav/security/advisories/GHSA-5xv4-g337-2pg7

Vendor Advisories for CVE-2026-72821(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 23× in last 7d / 23× 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. 2026-08-20 22:56 UTCEPSS rescore
  2. 2026-08-20 05:29 UTCEG score recompute
  3. 2026-08-20 05:29 UTCGHSA enrichment
  4. 2026-08-19 17:04 UTCEPSS rescore
  5. 2026-08-19 03:54 UTCEG score recompute
  6. 2026-08-19 03:54 UTCGHSA enrichment
  7. 2026-08-18 13:49 UTCEPSS rescore
  8. 2026-08-18 13:49 UTCEPSS rescore
  9. 2026-08-18 02:20 UTCEG score recompute
  10. 2026-08-18 02:20 UTCGHSA enrichment
  11. 2026-08-17 17:06 UTCEG score recompute
  12. 2026-08-17 17:06 UTCGHSA enrichment
  13. 2026-08-17 13:47 UTCEPSS rescore
  14. 2026-08-16 15:31 UTCEG score recompute
  15. 2026-08-16 15:31 UTCGHSA enrichment
  16. 2026-08-16 14:56 UTCEPSS rescore
  17. 2026-08-16 14:56 UTCEPSS rescore
  18. 2026-08-16 02:15 UTCEPSS rescore
  19. 2026-08-15 13:57 UTCEG score recompute
  20. 2026-08-15 13:57 UTCGHSA enrichment
  21. 2026-08-14 12:22 UTCEG score recompute
  22. 2026-08-14 11:49 UTCEG score recompute
  23. 2026-08-14 11:49 UTCMITRE cvelistV5first tracked

Related CVEs(same CWE)

Frequently asked(5)

What is CVE-2026-72821?
CVE-2026-72821 is a medium vulnerability published on August 14, 2026. Grav Form plugin versions before 9.1.15 contain a stored cross-site scripting vulnerability in radio and toggle field option labels rendered with the Twig |raw filter. Attackers with form authoring permissions can inject HTML and script payloads in option labels that execute in the browsers of…
When was CVE-2026-72821 disclosed?
CVE-2026-72821 was first published in the National Vulnerability Database on August 14, 2026, with the most recent update on August 18, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2026-72821 actively exploited?
CVE-2026-72821 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 96.3% of all scored CVEs.
What is the CVSS score of CVE-2026-72821?
CVE-2026-72821 has a CVSS v3 base score of 5.4 (NVD).
How do I remediate CVE-2026-72821?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2026-72821, 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

Explore the affected products and dependency analysis for CVE-2026-72821

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