CVE-2026-84793

MEDIUMPre-NVD 4.84.8—
EchelonGraph scoreHIGH confidence

Score 4.8 from GitHub Security Advisory published 2026-09-02. a secondary CVSS source baseline 4.8; sources differ by 0.0.

Triggered by: GitHub Security Advisory CVSS
Sources: epss, ghsa, secondary
Trending — 3 sources updated this weekElevated
4.8EG
EchelonGraph verdictMonitorLow exploitation likelihood right now — keep watching.
  • Lower severity and no public exploit yet
CISA-KEV: Not listedEPSS PROB: 0%CVSS: 4.8Exploit: Elevated riskExposed: 0

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

Craft CMS versions from 5.0.0-RC1 before 5.10.11 contain a stored cross-site scripting vulnerability in the site name field that fails to sanitize input. Administrators can inject arbitrary JavaScript payloads in the site name that execute when other users view the control panel settings pages.

CVSS v3
4.8
EG Score
4.8(high)
EG Risk
38(Track)
EG Risk 38/100SSVC: 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
Severity48% × 45%
Exploitation40% × 40%
Automatability0% × 15%
Action: Routine — remediate on your standard cadence.
EPSS PROB
0%
EPSS %ILE
15%
KEV
Not listed

Published

September 2, 2026

Last Modified

September 2, 2026

Advisory Details (2)

Auto-updated Sep 2, 2026
Patch available. Sources: github.
generic

Craft CMS 5.0.0-RC1 before 5.10.11 Stored XSS via site name | Advisories | VulnCheck

https://www.vulncheck.com/advisories/craft-cms-5.0.0-rc1-before-5.10.11-stored-xss-via-site-name
github Patch Available

Stored XSS in site name rendered without escaping · Advisory · craftcms/cms · GitHub

https://github.com/craftcms/cms/security/advisories/GHSA-5fjj-496j-2qqf

Vendor Advisories for CVE-2026-84793(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 20× in last 7d / 68× 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. 2026-09-25 00:40 UTCEG score recompute
  2. 2026-09-25 00:40 UTCGHSA enrichment
  3. 2026-09-24 14:04 UTCEPSS rescore
  4. 2026-09-24 01:16 UTCEG score recompute
  5. 2026-09-24 01:16 UTCGHSA enrichment
  6. 2026-09-23 17:54 UTCEPSS rescore
  7. 2026-09-23 01:54 UTCEG score recompute
  8. 2026-09-23 01:54 UTCGHSA enrichment
  9. 2026-09-22 16:01 UTCEPSS rescore
  10. 2026-09-22 02:31 UTCEG score recompute
  11. 2026-09-22 02:30 UTCGHSA enrichment
  12. 2026-09-21 21:09 UTCEPSS rescore
  13. 2026-09-21 03:07 UTCEG score recompute
  14. 2026-09-21 03:07 UTCGHSA enrichment
  15. 2026-09-20 20:16 UTCEPSS rescore
  16. 2026-09-20 03:44 UTCEG score recompute
  17. 2026-09-20 03:44 UTCGHSA enrichment
  18. 2026-09-19 04:21 UTCEG score recompute
  19. 2026-09-19 04:20 UTCGHSA enrichment
  20. 2026-09-18 19:28 UTCEPSS rescore
  21. 2026-09-18 04:58 UTCEG score recompute
  22. 2026-09-18 04:58 UTCGHSA enrichment
  23. 2026-09-17 19:32 UTCEPSS rescore
  24. 2026-09-17 05:35 UTCEG score recompute
  25. 2026-09-17 05:35 UTCGHSA enrichment
Show 43 more
  1. 2026-09-16 14:09 UTCEPSS rescore
  2. 2026-09-16 06:11 UTCEG score recompute
  3. 2026-09-16 06:11 UTCGHSA enrichment
  4. 2026-09-16 05:15 UTCEPSS rescore
  5. 2026-09-15 06:48 UTCEG score recompute
  6. 2026-09-15 06:48 UTCGHSA enrichment
  7. 2026-09-15 03:12 UTCEPSS rescore
  8. 2026-09-15 03:12 UTCEPSS rescore
  9. 2026-09-14 07:25 UTCEG score recompute
  10. 2026-09-14 07:25 UTCGHSA enrichment
  11. 2026-09-13 08:02 UTCGHSA enrichment
  12. 2026-09-12 08:40 UTCEG score recompute
  13. 2026-09-12 08:40 UTCGHSA enrichment
  14. 2026-09-11 14:53 UTCEPSS rescore
  15. 2026-09-11 14:53 UTCEPSS rescore
  16. 2026-09-11 09:17 UTCGHSA enrichment
  17. 2026-09-10 09:54 UTCEG score recompute
  18. 2026-09-10 09:54 UTCGHSA enrichment
  19. 2026-09-09 10:31 UTCEG score recompute
  20. 2026-09-09 10:31 UTCGHSA enrichment
  21. 2026-09-08 22:01 UTCEPSS rescore
  22. 2026-09-08 11:00 UTCEG score recompute
  23. 2026-09-08 11:00 UTCGHSA enrichment
  24. 2026-09-07 11:25 UTCEG score recompute
  25. 2026-09-07 11:25 UTCGHSA enrichment
  26. 2026-09-06 13:48 UTCEPSS rescore
  27. 2026-09-06 12:01 UTCEG score recompute
  28. 2026-09-06 12:01 UTCGHSA enrichment
  29. 2026-09-05 15:31 UTCEPSS rescore
  30. 2026-09-05 12:38 UTCEG score recompute
  31. 2026-09-05 12:38 UTCGHSA enrichment
  32. 2026-09-04 13:15 UTCEG score recompute
  33. 2026-09-04 13:15 UTCGHSA enrichment
  34. 2026-09-04 05:07 UTCEPSS rescore
  35. 2026-09-03 13:51 UTCGHSA enrichment
  36. 2026-09-02 14:28 UTCEG score recompute
  37. 2026-09-02 14:28 UTCGHSA enrichment
  38. 2026-09-02 14:04 UTCEG score recompute
  39. 2026-09-02 14:03 UTCGHSA enrichment
  40. 2026-09-02 14:01 UTCGHSA enrichment
  41. 2026-09-02 12:27 UTCEG score recompute
  42. 2026-09-02 11:25 UTCEG score recompute
  43. 2026-09-02 11:23 UTCMITRE cvelistV5first tracked

Related CVEs(same CWE)

Frequently asked(5)

What is CVE-2026-84793?
CVE-2026-84793 is a medium vulnerability published on September 2, 2026. Craft CMS versions from 5.0.0-RC1 before 5.10.11 contain a stored cross-site scripting vulnerability in the site name field that fails to sanitize input. Administrators can inject arbitrary JavaScript payloads in the site name that execute when other users view the control panel settings pages.
When was CVE-2026-84793 disclosed?
CVE-2026-84793 was first published in the National Vulnerability Database on September 2, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2026-84793 actively exploited?
CVE-2026-84793 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 85.2% of all scored CVEs.
What is the CVSS score of CVE-2026-84793?
CVE-2026-84793 has a CVSS v3 base score of 4.8 (NVD).
How do I remediate CVE-2026-84793?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2026-84793, 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-2026-84793

Explore →

Is Your Infrastructure Affected by CVE-2026-84793?

EchelonGraph automatically scans your cloud infrastructure and maps CVE exposure using blast radius analysis.

Book a Demo →Browse All CVEs