CVE-2026-56383

MEDIUMPre-NVD 4.84.8—
EchelonGraph scoreMEDIUM confidence

Score 4.8 from GitHub Security Advisory published 2026-06-21. a secondary CVSS source baseline 4.8; sources differ by 0.0.

Triggered by: GitHub Security Advisory CVSS
Sources: epss, ghsa, secondary
Elevated
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 contains a stored cross-site scripting (XSS) vulnerability in the editableTable.twig component when using the 'Row Heading' column type. The application fails to sanitize input within row heading default values, allowing an attacker with an administrator account (with allowAdminChanges enabled) to inject arbitrary JavaScript that executes when another user views a page containing the affected table field. Affected versions are >= 4.5.0-beta.1 through 4.16.18 and >= 5.0.0-RC1 through 5.8.22; fixed in 4.16.19 and 5.8.23.

CVSS v3
4.8
EG Score
4.8(medium)
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
23%
KEV
Not listed

Published

June 21, 2026

Last Modified

June 23, 2026

Advisory Details (3)

Auto-updated Jun 23, 2026
Patch available. Sources: github_commit, github.
github Patch Available

Stored XSS in Table Field via "Row Heading" Column Type · Advisory · craftcms/cms · GitHub

https://github.com/craftcms/cms/security/advisories/GHSA-6j87-m5qx-9fqp
generic

Craft CMS - Stored XSS in Table Field via Row Heading Column Type | Advisories | VulnCheck

https://www.vulncheck.com/advisories/craft-cms-stored-xss-in-table-field-via-row-heading-column-type
github_commit Patch Available

commit 7b372de262b8 (craftcms/cms)

Patch available: craftcms/cms 5.9.21 (contains commit 7b372de262b8)

https://github.com/craftcms/cms/commit/7b372de262b8d9d2ce859f32780c3715719b6f5a

Vendor Advisories for CVE-2026-56383(1)

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

Affected Packages

(1 across 1 ecosystem)
Packagist(1)
PackageVulnerable rangeFixed inDependents
craftcms/cms5.0.0 ... 5.8.9 (144 versions)5.8.23—

Weakness Classification(1)

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

Data Freshness Timeline

(refreshed 10× in last 7d / 58× 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.

Showing the most recent 100 of 137 total refreshes for this CVE.

  1. 2026-08-25 13:49 UTCEPSS rescore
  2. 2026-08-24 23:26 UTCEG score recompute
  3. 2026-08-23 23:16 UTCEG score recompute
  4. 2026-08-23 00:19 UTCEPSS rescore
  5. 2026-08-22 22:56 UTCEG score recompute
  6. 2026-08-21 23:49 UTCEPSS rescore
  7. 2026-08-21 08:08 UTCEG score recompute
  8. 2026-08-20 22:55 UTCEPSS rescore
  9. 2026-08-20 07:53 UTCEG score recompute
  10. 2026-08-19 17:04 UTCEPSS rescore
  11. 2026-08-19 05:47 UTCEG score recompute
  12. 2026-08-18 13:48 UTCEPSS rescore
  13. 2026-08-17 13:47 UTCEPSS rescore
  14. 2026-08-16 20:18 UTCEG score recompute
  15. 2026-08-16 14:56 UTCEPSS rescore
  16. 2026-08-16 02:14 UTCEPSS rescore
  17. 2026-08-15 19:42 UTCEG score recompute
  18. 2026-08-15 01:30 UTCEPSS rescore
  19. 2026-08-14 19:24 UTCEG score recompute
  20. 2026-08-13 22:00 UTCEPSS rescore
  21. 2026-08-12 19:02 UTCEG score recompute
  22. 2026-08-12 13:51 UTCEPSS rescore
  23. 2026-08-11 18:52 UTCEG score recompute
  24. 2026-08-11 00:00 UTCEPSS rescore
  25. 2026-08-09 18:23 UTCEG score recompute
Show 75 more
  1. 2026-08-09 13:46 UTCEPSS rescore
  2. 2026-08-08 18:13 UTCEG score recompute
  3. 2026-08-08 16:37 UTCEPSS rescore
  4. 2026-08-07 18:03 UTCEG score recompute
  5. 2026-08-06 17:53 UTCEG score recompute
  6. 2026-08-06 17:52 UTCGHSA enrichment
  7. 2026-08-06 13:47 UTCEPSS rescore
  8. 2026-08-05 19:17 UTCEPSS rescore
  9. 2026-08-05 17:41 UTCGHSA enrichment
  10. 2026-08-04 15:17 UTCEG score recompute
  11. 2026-08-04 15:17 UTCGHSA enrichment
  12. 2026-08-04 15:10 UTCEPSS rescore
  13. 2026-08-04 10:39 UTCEPSS rescore
  14. 2026-08-03 10:36 UTCEPSS rescore
  15. 2026-08-03 08:00 UTCGHSA enrichment
  16. 2026-08-02 05:08 UTCEG score recompute
  17. 2026-08-02 05:08 UTCGHSA enrichment
  18. 2026-08-02 02:27 UTCEPSS rescore
  19. 2026-08-01 04:57 UTCEG score recompute
  20. 2026-08-01 04:57 UTCGHSA enrichment
  21. 2026-08-01 04:16 UTCEPSS rescore
  22. 2026-07-31 03:46 UTCEG score recompute
  23. 2026-07-31 03:45 UTCGHSA enrichment
  24. 2026-07-30 16:28 UTCEPSS rescore
  25. 2026-07-30 02:49 UTCEG score recompute
  26. 2026-07-30 02:49 UTCGHSA enrichment
  27. 2026-07-30 01:30 UTCEPSS rescore
  28. 2026-07-30 01:30 UTCEPSS rescore
  29. 2026-07-29 01:27 UTCEG score recompute
  30. 2026-07-29 01:27 UTCGHSA enrichment
  31. 2026-07-28 15:37 UTCEPSS rescore
  32. 2026-07-27 18:00 UTCEG score recompute
  33. 2026-07-27 18:00 UTCGHSA enrichment
  34. 2026-07-26 16:18 UTCEG score recompute
  35. 2026-07-26 16:18 UTCGHSA enrichment
  36. 2026-07-26 14:54 UTCEPSS rescore
  37. 2026-07-25 14:18 UTCEPSS rescore
  38. 2026-07-24 14:18 UTCEPSS rescore
  39. 2026-07-23 14:18 UTCEPSS rescore
  40. 2026-07-23 03:20 UTCEG score recompute
  41. 2026-07-22 14:08 UTCEPSS rescore
  42. 2026-07-21 15:25 UTCEPSS rescore
  43. 2026-07-20 17:08 UTCEPSS rescore
  44. 2026-07-19 14:31 UTCEPSS rescore
  45. 2026-07-19 14:31 UTCEPSS rescore
  46. 2026-07-19 02:29 UTCEPSS rescore
  47. 2026-07-18 10:04 UTCEPSS rescore
  48. 2026-07-16 22:15 UTCGHSA enrichment
  49. 2026-07-16 17:03 UTCEPSS rescore
  50. 2026-07-15 21:58 UTCGHSA enrichment
  51. 2026-07-15 16:57 UTCEPSS rescore
  52. 2026-07-15 16:57 UTCEPSS rescore
  53. 2026-07-15 02:00 UTCEPSS rescore
  54. 2026-07-15 02:00 UTCEPSS rescore
  55. 2026-07-14 21:47 UTCGHSA enrichment
  56. 2026-07-13 22:31 UTCEPSS rescore
  57. 2026-07-13 21:37 UTCGHSA enrichment
  58. 2026-07-13 06:13 UTCEPSS rescore
  59. 2026-07-13 06:13 UTCEPSS rescore
  60. 2026-07-12 21:26 UTCGHSA enrichment
  61. 2026-07-12 05:46 UTCEPSS rescore
  62. 2026-07-11 20:29 UTCGHSA enrichment
  63. 2026-07-11 08:27 UTCEPSS rescore
  64. 2026-07-11 08:27 UTCEPSS rescore
  65. 2026-07-10 20:19 UTCGHSA enrichment
  66. 2026-07-09 20:08 UTCGHSA enrichment
  67. 2026-07-09 19:10 UTCEPSS rescore
  68. 2026-07-09 19:10 UTCEPSS rescore
  69. 2026-07-08 19:55 UTCGHSA enrichment
  70. 2026-07-08 15:16 UTCEPSS rescore
  71. 2026-07-08 15:16 UTCEPSS rescore
  72. 2026-07-07 19:40 UTCGHSA enrichment
  73. 2026-07-07 13:46 UTCEPSS rescore
  74. 2026-07-07 13:46 UTCEPSS rescore
  75. 2026-07-06 18:56 UTCGHSA enrichment

Related CVEs(same CWE)

Frequently asked(5)

What is CVE-2026-56383?
CVE-2026-56383 is a medium vulnerability published on June 21, 2026. Craft CMS contains a stored cross-site scripting (XSS) vulnerability in the editableTable.twig component when using the 'Row Heading' column type. The application fails to sanitize input within row heading default values, allowing an attacker with an administrator account (with allowAdminChanges…
When was CVE-2026-56383 disclosed?
CVE-2026-56383 was first published in the National Vulnerability Database on June 21, 2026, with the most recent update on June 23, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2026-56383 actively exploited?
CVE-2026-56383 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 77.0% of all scored CVEs.
What is the CVSS score of CVE-2026-56383?
CVE-2026-56383 has a CVSS v3 base score of 4.8 (NVD).
How do I remediate CVE-2026-56383?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2026-56383, 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

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