CVE-2026-58654

MEDIUMPre-NVD 4.34.3
EchelonGraph scoreMEDIUM confidence

“—” beside the score: it is equal to the CVSS score beside it.

Score 4.3 from GitHub Security Advisory published 2026-07-08. A secondary CVSS source baseline 4.3; sources differ by 0.0.

Triggered by: GitHub Security Advisory CVSS
Sources: EPSS, GitHub Security Advisory, a secondary CVSS source
Elevated
4.3EG
EchelonGraph verdictPlan mitigationRemediate within your standard update timelines (the SSVC decision on this page).
  • CISA's Vulnrichment rates exploitation as PoC; EchelonGraph holds no exploit-code reference for it
CISA-KEV: Not listedEPSS PROB: 0.4%CVSS: 4.3Exploit: No code on recordExposed services: Not assessed

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

The CVE record's CNA (VulnCheck) lists Grav versions before 1.0.1 as affected, and Grav versions 1.0.1 as unaffected. No release containing a fix is confirmed on record.

The Grav API plugin (getgrav/grav-plugin-api) 1.0.0 contains an unrestricted file upload vulnerability in the avatar upload endpoint (/api/v1/users/user/avatar). The endpoint validates only the client-declared MIME type (getClientMediaType) beginning with 'image/' and does not inspect the actual file content or restrict the resulting extension, allowing an authenticated user to store arbitrary content — including PHP code, SVG with embedded JavaScript, and polyglot payloads — under user/accounts/avatars/ with predictable filenames. Direct HTTP access to the stored files is blocked by .htaccess (returns 403), but the files persist on disk and could lead to remote code execution or stored XSS in the presence of a path traversal flaw or server misconfiguration. Fixed in 1.0.1.

CVSS v3
4.3
EG Score
4.3MEDIUMmedium confidence
EG Risk
35
EG Risk 35/100

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 (value × EchelonGraph’s weight)
Severity43% × 45%
The EG Score, 4.3 of 10.
Exploitation40% × 40%
EchelonGraph's fixed weight for EG-KEV Tier 3 (Elevated): a constant, not a probability.
Automatability0% × 15%
CISA's SSVC Automatable value: no (Vulnrichment).
SSVC (CISA's decision table, applied by EchelonGraph): Track at low or medium mission impact; Track* at high (mission-essential systems).
Exploitation public PoC (CISA Vulnrichment) · Automatable no (CISA Vulnrichment) · Technical impact partial (CISA Vulnrichment). All three are CISA's SSVC values (Vulnrichment). EchelonGraph applied CISA's decision table to them; CISA publishes SSVC inputs and the table, not a decision for each CVE.
Action: No fix is confirmed yet. Restrict network exposure of the affected system or apply the vendor's mitigation within your standard update timelines, and watch the vendor's advisory for the fix.
EPSS PROB
0.4%
EPSS %ILE
36th
KEV
Not listed

SSVC (CISA's decision table, applied by EchelonGraph)Track at low or medium mission impact; Track* at high (mission-essential systems).

No fix is confirmed yet. Restrict network exposure of the affected system or apply the vendor's mitigation within your standard update timelines, and watch the vendor's advisory for the fix.

Exploitation public PoC (CISA Vulnrichment) · Automatable no (CISA Vulnrichment) · Technical impact partial (CISA Vulnrichment). All three are CISA's SSVC values (Vulnrichment). EchelonGraph applied CISA's decision table to them; CISA publishes SSVC inputs and the table, not a decision for each CVE. Mission impact is CISA's Mission & Well-being decision point, and only you can judge it. CISA's table makes it high when Mission Prevalence is Essential — the vulnerable component "directly provides capabilities that constitute at least one MEF for at least one entity" (MEF: mission essential function) — or when Public Well-Being Impact is Irreversible: "multiple fatalities are likely", the cyber-physical system "is likely lost or destroyed", "extreme or serious externalities" are imposed on other parties, or social systems such as elections or the financial grid "are destabilized and potentially collapse". CISA's decision table

BOD 26-04 (CISA's remediation timeline, Table 1)60 days if the affected system is publicly exposed; Fix on system upgrade if it is not.

In CISA KEV no (CISA's KEV catalog) · Automatable no (CISA Vulnrichment) · Technical impact partial (CISA Vulnrichment). Whether your system is publicly exposed is yours to answer. BOD 26-04 binds US Federal Civilian Executive Branch agencies; for anyone else it is CISA's published timeline, a reference rather than an obligation. The directive · how EchelonGraph applies it

Published

July 8, 2026

Last Modified

July 8, 2026

Advisory Details (2)

Auto-updated Jul 9, 2026
No fix on record yet. Sources: github.
GitHub advisoryMentions a patch (unverified)

Unrestricted File Upload via Avatar Endpoint - Arbitrary Content Stored on Disk · Advisory · getgrav/grav · GitHub

https://github.com/getgrav/grav/security/advisories/GHSA-xc64-vh46-vph6
Web page

Grav - Arbitrary File Upload via Avatar Endpoint | Advisories | VulnCheck

https://www.vulncheck.com/advisories/grav-arbitrary-file-upload-via-avatar-endpoint

Vendor Advisories for CVE-2026-58654(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 11× in last 7d / 42× in last 30d)

Each row is a time one of our pipelines fetched, updated or re-scored this CVE. 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. An arrow marks a change the record states ("CVSS v3 → 9.1"); EPSS and GHSA rows show the values recorded at that time, not what changed (EPSS values are rounded; hover one for the exact figures). Most recent first.

Showing the most recent 100 of 184 refreshes on record for this CVE.

A repeat, a row identical to one the same pipeline wrote less than 10 seconds earlier, is not a separate refresh and is not counted. None are among the latest 100 rows. The 84 oldest rows on record are not shown and were not checked, so the counts can still include repeats.

  1. 2026-10-13 16:34 UTCEPSS rescoreEPSS 0.4% · 36th percentile
  2. 2026-10-12 16:34 UTCEPSS rescoreEPSS 0.4% · 36th percentile
  3. 2026-10-12 15:53 UTCEG score recompute
  4. 2026-10-11 19:36 UTCEG score recompute
  5. 2026-10-11 16:51 UTCEG score recompute
  6. 2026-10-11 14:14 UTCEG score recompute
  7. 2026-10-11 13:49 UTCEPSS rescoreEPSS 0.4% · 36th percentile
  8. 2026-10-10 20:00 UTCEPSS rescoreEPSS 0.4% · 35th percentile
  9. 2026-10-09 20:07 UTCEPSS rescoreEPSS 0.4% · 35th percentile
  10. 2026-10-08 17:13 UTCEPSS rescoreEPSS 0.4% · 35th percentile
  11. 2026-10-07 23:48 UTCEPSS rescoreEPSS 0.4% · 35th percentile
  12. 2026-10-06 15:18 UTCEPSS rescoreEPSS 0.4% · 35th percentile
  13. 2026-10-05 17:43 UTCEPSS rescoreEPSS 0.4% · 35th percentile
  14. 2026-10-04 23:22 UTCEPSS rescoreEPSS 0.4% · 35th percentile
  15. 2026-10-03 14:26 UTCEPSS rescoreEPSS 0.4% · 35th percentile
  16. 2026-10-02 17:56 UTCEPSS rescoreEPSS 0.4% · 35th percentile
  17. 2026-10-01 19:50 UTCEPSS rescoreEPSS 0.4% · 35th percentile
  18. 2026-10-01 16:13 UTCEG score recompute
  19. 2026-10-01 16:13 UTCGHSA enrichmentGHSA-w3xr-jx24-vw2h · GitHub CVSS 4.3
  20. 2026-09-30 15:03 UTCEPSS rescoreEPSS 0.4% · 35th percentile
  21. 2026-09-29 15:22 UTCEPSS rescoreEPSS 0.4% · 35th percentile
  22. 2026-09-28 13:51 UTCEPSS rescoreEPSS 0.4% · 35th percentile
  23. 2026-09-28 13:25 UTCEG score recompute
  24. 2026-09-28 13:25 UTCGHSA enrichmentGHSA-w3xr-jx24-vw2h · GitHub CVSS 4.3
  25. 2026-09-27 13:48 UTCEPSS rescoreEPSS 0.4% · 35th percentile
Show 75 more
  1. 2026-09-26 15:59 UTCEPSS rescoreEPSS 0.4% · 35th percentile
  2. 2026-09-24 14:04 UTCEPSS rescoreEPSS 0.4% · 35th percentile
  3. 2026-09-24 11:52 UTCEG score recompute
  4. 2026-09-24 11:52 UTCGHSA enrichmentGHSA-w3xr-jx24-vw2h · GitHub CVSS 4.3
  5. 2026-09-23 17:54 UTCEPSS rescoreEPSS 0.4% · 37th percentile
  6. 2026-09-23 06:12 UTCEG score recompute
  7. 2026-09-23 06:12 UTCGHSA enrichmentGHSA-w3xr-jx24-vw2h · GitHub CVSS 4.3
  8. 2026-09-20 20:16 UTCEPSS rescoreEPSS 0.4% · 37th percentile
  9. 2026-09-18 19:28 UTCEPSS rescoreEPSS 0.4% · 37th percentile
  10. 2026-09-18 05:45 UTCEG score recompute
  11. 2026-09-18 05:45 UTCGHSA enrichmentGHSA-w3xr-jx24-vw2h · GitHub CVSS 4.3
  12. 2026-09-17 19:31 UTCEPSS rescoreEPSS 0.4% · 37th percentile
  13. 2026-09-16 14:08 UTCEPSS rescoreEPSS 0.4% · 37th percentile
  14. 2026-09-16 05:15 UTCEPSS rescoreEPSS 0.4% · 36th percentile
  15. 2026-09-15 03:11 UTCEPSS rescoreEPSS 0.4% · 36th percentile
  16. 2026-09-14 11:16 UTCEG score recompute
  17. 2026-09-14 11:16 UTCGHSA enrichmentGHSA-w3xr-jx24-vw2h · GitHub CVSS 4.3
  18. 2026-09-13 16:47 UTCEPSS rescoreEPSS 0.4% · 36th percentile
  19. 2026-09-13 08:26 UTCEG score recompute
  20. 2026-09-13 08:26 UTCGHSA enrichmentGHSA-w3xr-jx24-vw2h · GitHub CVSS 4.3
  21. 2026-09-12 03:37 UTCEG score recompute
  22. 2026-09-12 03:37 UTCGHSA enrichmentGHSA-w3xr-jx24-vw2h · GitHub CVSS 4.3
  23. 2026-09-11 14:53 UTCEPSS rescoreEPSS 0.4% · 36th percentile
  24. 2026-09-10 09:35 UTCEPSS rescoreEPSS 0.4% · 36th percentile
  25. 2026-09-08 22:01 UTCEPSS rescoreEPSS 0.4% · 36th percentile
  26. 2026-09-07 16:01 UTCEPSS rescoreEPSS 0.4% · 36th percentile
  27. 2026-09-06 13:47 UTCEPSS rescoreEPSS 0.4% · 36th percentile
  28. 2026-09-05 22:49 UTCEG score recompute
  29. 2026-09-05 22:49 UTCGHSA enrichmentGHSA-w3xr-jx24-vw2h · GitHub CVSS 4.3
  30. 2026-09-04 05:07 UTCEPSS rescoreEPSS 0.4% · 36th percentile
  31. 2026-09-02 14:12 UTCEPSS rescoreEPSS 0.4% · 36th percentile
  32. 2026-09-01 13:54 UTCEPSS rescoreEPSS 0.4% · 36th percentile
  33. 2026-09-01 04:40 UTCEPSS rescoreEPSS 0.4% · 36th percentile
  34. 2026-08-30 19:17 UTCEPSS rescoreEPSS 0.4% · 36th percentile
  35. 2026-08-30 07:38 UTCEG score recompute
  36. 2026-08-30 07:38 UTCGHSA enrichmentGHSA-w3xr-jx24-vw2h · GitHub CVSS 4.3
  37. 2026-08-30 01:22 UTCEPSS rescoreEPSS 0.4% · 36th percentile
  38. 2026-08-28 21:42 UTCEPSS rescoreEPSS 0.4% · 36th percentile
  39. 2026-08-27 21:51 UTCEG score recompute
  40. 2026-08-27 21:51 UTCGHSA enrichmentGHSA-w3xr-jx24-vw2h · GitHub CVSS 4.3
  41. 2026-08-27 14:25 UTCEPSS rescoreEPSS 0.4% · 36th percentile
  42. 2026-08-26 14:46 UTCEPSS rescoreEPSS 0.4% · 36th percentile
  43. 2026-08-26 08:27 UTCEG score recompute
  44. 2026-08-26 08:27 UTCGHSA enrichmentGHSA-w3xr-jx24-vw2h · GitHub CVSS 4.3
  45. 2026-08-25 13:49 UTCEPSS rescoreEPSS 0.4% · 36th percentile
  46. 2026-08-25 00:24 UTCEG score recompute
  47. 2026-08-25 00:24 UTCGHSA enrichmentGHSA-w3xr-jx24-vw2h · GitHub CVSS 4.3
  48. 2026-08-23 22:19 UTCEG score recompute
  49. 2026-08-23 22:19 UTCGHSA enrichmentGHSA-w3xr-jx24-vw2h · GitHub CVSS 4.3
  50. 2026-08-23 00:19 UTCEPSS rescoreEPSS 0.3% · 18th percentile
  51. 2026-08-22 20:01 UTCEG score recompute
  52. 2026-08-22 20:01 UTCGHSA enrichmentGHSA-w3xr-jx24-vw2h · GitHub CVSS 4.3
  53. 2026-08-21 23:49 UTCEPSS rescoreEPSS 0.3% · 18th percentile
  54. 2026-08-21 17:56 UTCEG score recompute
  55. 2026-08-21 17:56 UTCGHSA enrichmentGHSA-w3xr-jx24-vw2h · GitHub CVSS 4.3
  56. 2026-08-20 22:55 UTCEPSS rescoreEPSS 0.3% · 18th percentile
  57. 2026-08-20 15:51 UTCEG score recompute
  58. 2026-08-20 15:51 UTCGHSA enrichmentGHSA-w3xr-jx24-vw2h · GitHub CVSS 4.3
  59. 2026-08-19 17:04 UTCEPSS rescoreEPSS 0.3% · 18th percentile
  60. 2026-08-19 13:47 UTCEG score recompute
  61. 2026-08-19 13:47 UTCGHSA enrichmentGHSA-w3xr-jx24-vw2h · GitHub CVSS 4.3
  62. 2026-08-18 13:48 UTCEPSS rescoreEPSS 0.3% · 17th percentile
  63. 2026-08-18 11:43 UTCEG score recompute
  64. 2026-08-18 11:43 UTCGHSA enrichmentGHSA-w3xr-jx24-vw2h · GitHub CVSS 4.3
  65. 2026-08-17 13:47 UTCEPSS rescoreEPSS 0.3% · 17th percentile
  66. 2026-08-17 09:38 UTCEG score recompute
  67. 2026-08-17 09:38 UTCGHSA enrichmentGHSA-w3xr-jx24-vw2h · GitHub CVSS 4.3
  68. 2026-08-16 14:56 UTCEPSS rescoreEPSS 0.3% · 18th percentile
  69. 2026-08-16 07:34 UTCEG score recompute
  70. 2026-08-16 07:34 UTCGHSA enrichmentGHSA-w3xr-jx24-vw2h · GitHub CVSS 4.3
  71. 2026-08-16 02:14 UTCEPSS rescoreEPSS 0.3% · 18th percentile
  72. 2026-08-15 05:30 UTCEG score recompute
  73. 2026-08-15 05:30 UTCGHSA enrichmentGHSA-w3xr-jx24-vw2h · GitHub CVSS 4.3
  74. 2026-08-15 01:30 UTCEPSS rescoreEPSS 0.3% · 17th percentile
  75. 2026-08-14 03:25 UTCEG score recompute

Related CVEs(same CWE)

Frequently asked(5)

What is CVE-2026-58654?
CVE-2026-58654 is a medium-severity vulnerability; its CVE record was published on July 8, 2026. The Grav API plugin (getgrav/grav-plugin-api) 1.0.0 contains an unrestricted file upload vulnerability in the avatar upload endpoint (/api/v1/users/user/avatar). The endpoint validates only the client-declared MIME type (getClientMediaType) beginning with 'image/' and does not inspect the actual…
When was CVE-2026-58654 made public?
CVE-2026-58654 was made public on June 22, 2026: that is the date its CVE record's CNA, VulnCheck, gives for when the vulnerability was made public. The CVE record itself was published on July 8, 2026. EchelonGraph's copy of the record carries a last-modified date of July 8, 2026; the record at its source may have been updated since.
Is CVE-2026-58654 actively exploited?
CVE-2026-58654 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 0.4% probability of exploitation in the next 30 days (36th percentile of EPSS-scored CVEs).
What is the CVSS score of CVE-2026-58654?
CVE-2026-58654 has a CVSS base score of 4.3 (a secondary CVSS source that NVD displays; NVD's own analysis pending).
How do I remediate CVE-2026-58654?
No fix for CVE-2026-58654 is confirmed yet. Until one is published, restrict network exposure of the affected system or apply the vendor's mitigation — for example, keep it off the internet or limit it to trusted networks — and watch the vendor's advisory for the fix. The CVE record's CNA (VulnCheck) lists Grav versions before 1.0.1 as affected, and Grav versions 1.0.1 as unaffected. No release containing a fix is confirmed on record. The vendor advisories EchelonGraph has for CVE-2026-58654 are linked in the Vendor Advisories panel on this page.

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