CVE-2026-61456

MEDIUMPre-NVD 4.64.6—
EchelonGraph scoreMEDIUM confidence

Score 4.6 from GitHub Security Advisory published 2026-07-10. a secondary CVSS source baseline 4.6; sources differ by 0.0.

Triggered by: GitHub Security Advisory CVSS
Sources: epss, ghsa, secondary
Trending — 3 sources updated this weekElevated
4.6EG
EchelonGraph verdictMonitorLow exploitation likelihood right now — keep watching.
  • Lower severity and no public exploit yet
CISA-KEV: Not listedEPSS PROB: 0%CVSS: 4.6Exploit: Elevated riskExposed: 0

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

The Grav API plugin (getgrav/grav-plugin-api) before 1.0.3 fails to sanitize SVG files uploaded through the POST /api/v1/media endpoint. The HandlesMediaUploads::processUploadedFile() method validates only the file extension and never invokes Security::sanitizeSVG(), so an authenticated attacker with the api.media.write permission can upload an SVG containing arbitrary JavaScript. The file is stored unmodified and served with Content-Type: image/svg+xml; when an administrator opens it in a browser (directly or via /), the embedded script executes in their session context, enabling cookie theft and session hijacking.

CVSS v3
4.6
EG Score
4.6(medium)
EG Risk
37(Track)
EG Risk 37/100SSVC: 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
Severity46% × 45%
Exploitation40% × 40%
Automatability0% × 15%
Action: Routine — remediate on your standard cadence.
EPSS PROB
0%
EPSS %ILE
14%
KEV
Not listed

Published

July 10, 2026

Last Modified

July 10, 2026

Advisory Details (2)

Auto-updated Jul 10, 2026
🔬 Proof of concept available. Patch available. Sources: github.
github Patch Available🟡 PoC Available

Stored XSS via SVG Upload - API Media Pipeline Bypasses Sanitizer · Advisory · getgrav/grav · GitHub

https://github.com/getgrav/grav/security/advisories/GHSA-7vhm-8x52-2r5p
generic

Grav before 1.0.3 Stored XSS via SVG Upload API | Advisories | VulnCheck

https://www.vulncheck.com/advisories/grav-before-stored-xss-via-svg-upload-api

Vendor Advisories for CVE-2026-61456(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 17× in last 7d / 79× 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 129 total refreshes for this CVE.

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

Related CVEs(same CWE)

Frequently asked(5)

What is CVE-2026-61456?
CVE-2026-61456 is a medium vulnerability published on July 10, 2026. The Grav API plugin (getgrav/grav-plugin-api) before 1.0.3 fails to sanitize SVG files uploaded through the POST /api/v1/media endpoint. The HandlesMediaUploads::processUploadedFile() method validates only the file extension and never invokes Security::sanitizeSVG(), so an authenticated attacker…
When was CVE-2026-61456 disclosed?
CVE-2026-61456 was first published in the National Vulnerability Database on July 10, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2026-61456 actively exploited?
CVE-2026-61456 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 85.8% of all scored CVEs.
What is the CVSS score of CVE-2026-61456?
CVE-2026-61456 has a CVSS v3 base score of 4.6 (NVD).
How do I remediate CVE-2026-61456?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2026-61456, 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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