CVE-2026-62668

CRITICALPre-NVD 9.49.4
EchelonGraph scoreMEDIUM confidence

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

This critical-severity CVE scores 9.4 under a secondary CVSS source (NVD's own analysis pending). EPSS exploit probability: 0.4% (37th percentile of EPSS-scored CVEs). No GitHub Security Advisory CVSS is on record for this CVE.

Triggered by: Headline CVSS from a secondary CVSS source
Sources: EPSS, a secondary CVSS source
Elevated
9.4EG
EchelonGraph verdictPlan a fixRemediate within your standard update timelines at low or medium mission impact and sooner than that at high (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: 9.4Exploit: No code on recordExposed services: Not assessed

A fix is available — apply it.

Grav API Plugin is a RESTful API for Grav CMS that provides full headless access to your site's content. Prior to 1.0.6, the Grav API plugin WebhookController.php accepts webhook URLs after only FILTER_VALIDATE_URL syntax validation, and WebhookDispatcher.php initializes cURL without CURLOPT_PROTOCOLS or CURLOPT_REDIR_PROTOCOLS restrictions. An account with api.webhooks.write can submit file, dict, gopher, private-network, or link-local targets, retrieve local files and delivery response bodies, and pivot requests to internal services or cloud metadata endpoints. This issue is fixed in version 1.0.6.

CVSS v3
9.4
EG Score
9.4CRITICALmedium confidence
EG Risk
58
EG Risk 58/100

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)
Severity94% × 45%
The EG Score, 9.4 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, Track* at medium and Attend at high mission impact.
Exploitation public PoC (CISA Vulnrichment) · Automatable no (CISA Vulnrichment) · Technical impact total (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: A fix is available. Apply it within your standard update timelines at low or medium mission impact and sooner than that at high.
EPSS PROB
0.4%
EPSS %ILE
37th
KEV
Not listed

SSVC (CISA's decision table, applied by EchelonGraph)Track at low, Track* at medium and Attend at high mission impact.

A fix is available. Apply it within your standard update timelines at low or medium mission impact and sooner than that at high.

Exploitation public PoC (CISA Vulnrichment) · Automatable no (CISA Vulnrichment) · Technical impact total (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)14 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 total (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

August 19, 2026

Last Modified

September 9, 2026

Advisory Details (3)

Auto-updated Oct 2, 2026
Patch available. Sources: github_commit, github_release, github.
GitHub advisoryMentions a patch (unverified)

Webhook SSRF via Unrestricted cURL Protocols · Advisory · getgrav/grav · GitHub

https://github.com/getgrav/grav/security/advisories/GHSA-58q8-f7v4-w2vf
GitHub release Patch Available

1.0.6

Patch available: getgrav/grav-plugin-api 1.0.6

https://github.com/getgrav/grav-plugin-api/releases/tag/1.0.6
GitHub commit Patch Available

commit dfcc947f0d67 (getgrav/grav-plugin-api)

Patch available: getgrav/grav-plugin-api 1.0.15 (contains commit dfcc947f0d67)

https://github.com/getgrav/grav-plugin-api/commit/dfcc947f0d6758772caac290c68fe8d4c4a4874e

Weakness Classification(1)

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

Data Freshness Timeline

(refreshed 14× in last 7d / 51× 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 101 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 1 oldest row on record is not shown and was not checked, so the counts can still include repeats.

  1. 2026-10-14 01:50 UTCEG score recompute
  2. 2026-10-13 16:34 UTCEPSS rescoreEPSS 0.4% · 37th percentile
  3. 2026-10-12 22:02 UTCEG score recompute
  4. 2026-10-12 16:34 UTCEPSS rescoreEPSS 0.4% · 37th percentile
  5. 2026-10-12 15:49 UTCEG score recompute
  6. 2026-10-11 19:34 UTCEG score recompute
  7. 2026-10-11 16:49 UTCEG score recompute
  8. 2026-10-11 14:10 UTCEG score recompute
  9. 2026-10-11 13:49 UTCEPSS rescoreEPSS 0.4% · 37th percentile
  10. 2026-10-10 20:00 UTCEPSS rescoreEPSS 0.4% · 37th percentile
  11. 2026-10-09 20:07 UTCEPSS rescoreEPSS 0.4% · 37th percentile
  12. 2026-10-08 17:13 UTCEPSS rescoreEPSS 0.4% · 37th percentile
  13. 2026-10-08 08:25 UTCEG score recompute
  14. 2026-10-07 23:48 UTCEPSS rescoreEPSS 0.4% · 37th percentile
  15. 2026-10-06 16:59 UTCEG score recompute
  16. 2026-10-06 15:18 UTCEPSS rescoreEPSS 0.4% · 36th percentile
  17. 2026-10-06 07:58 UTCEG score recompute
  18. 2026-10-05 17:43 UTCEPSS rescoreEPSS 0.4% · 36th percentile
  19. 2026-10-05 01:46 UTCEG score recompute
  20. 2026-10-04 23:22 UTCEPSS rescoreEPSS 0.4% · 36th percentile
  21. 2026-10-03 16:56 UTCEG score recompute
  22. 2026-10-03 14:26 UTCEPSS rescoreEPSS 0.4% · 36th percentile
  23. 2026-10-02 21:37 UTCEG score recompute
  24. 2026-10-02 17:56 UTCEPSS rescoreEPSS 0.4% · 36th percentile
  25. 2026-10-01 22:47 UTCEG score recompute
Show 75 more
  1. 2026-10-01 19:50 UTCEPSS rescoreEPSS 0.4% · 36th percentile
  2. 2026-09-30 20:35 UTCEG score recompute
  3. 2026-09-30 15:03 UTCEPSS rescoreEPSS 0.4% · 36th percentile
  4. 2026-09-30 08:46 UTCEG score recompute
  5. 2026-09-28 21:43 UTCEG score recompute
  6. 2026-09-28 15:20 UTCEG score recompute
  7. 2026-09-28 13:51 UTCEPSS rescoreEPSS 0.4% · 36th percentile
  8. 2026-09-27 16:12 UTCEG score recompute
  9. 2026-09-27 07:00 UTCEG score recompute
  10. 2026-09-26 15:59 UTCEPSS rescoreEPSS 0.4% · 36th percentile
  11. 2026-09-24 15:43 UTCEG score recompute
  12. 2026-09-23 20:09 UTCEG score recompute
  13. 2026-09-23 17:54 UTCEPSS rescoreEPSS 0.4% · 35th percentile
  14. 2026-09-22 19:51 UTCEG score recompute
  15. 2026-09-21 21:49 UTCEG score recompute
  16. 2026-09-20 21:11 UTCEG score recompute
  17. 2026-09-20 20:16 UTCEPSS rescoreEPSS 0.4% · 35th percentile
  18. 2026-09-19 18:33 UTCEG score recompute
  19. 2026-09-18 21:45 UTCEG score recompute
  20. 2026-09-18 19:28 UTCEPSS rescoreEPSS 0.4% · 35th percentile
  21. 2026-09-17 21:32 UTCEG score recompute
  22. 2026-09-16 14:57 UTCEG score recompute
  23. 2026-09-16 14:08 UTCEPSS rescoreEPSS 0.4% · 35th percentile
  24. 2026-09-16 07:18 UTCEG score recompute
  25. 2026-09-16 05:15 UTCEPSS rescoreEPSS 0.4% · 35th percentile
  26. 2026-09-15 04:07 UTCEG score recompute
  27. 2026-09-13 18:00 UTCEG score recompute
  28. 2026-09-12 15:33 UTCEG score recompute
  29. 2026-09-11 16:47 UTCEG score recompute
  30. 2026-09-11 14:53 UTCEPSS rescoreEPSS 0.4% · 35th percentile
  31. 2026-09-11 13:00 UTCEG score recompute
  32. 2026-09-11 09:37 UTCEPSS rescoreEPSS 0.4% · 35th percentile
  33. 2026-09-10 09:59 UTCEG score recompute
  34. 2026-09-09 02:37 UTCEG score recompute
  35. 2026-09-08 22:01 UTCEPSS rescoreEPSS 0.3% · 25th percentile
  36. 2026-09-07 19:28 UTCEG score recompute
  37. 2026-09-07 16:01 UTCEPSS rescoreEPSS 0.3% · 25th percentile
  38. 2026-09-06 15:03 UTCEG score recompute
  39. 2026-09-06 13:47 UTCEPSS rescoreEPSS 0.3% · 25th percentile
  40. 2026-09-05 16:15 UTCEG score recompute
  41. 2026-09-05 15:31 UTCEPSS rescoreEPSS 0.3% · 25th percentile
  42. 2026-09-04 16:35 UTCEG score recompute
  43. 2026-09-04 05:10 UTCEG score recompute
  44. 2026-09-04 05:07 UTCEPSS rescoreEPSS 0.3% · 25th percentile
  45. 2026-09-02 16:06 UTCEG score recompute
  46. 2026-09-02 14:12 UTCEPSS rescoreEPSS 0.3% · 25th percentile
  47. 2026-09-01 16:20 UTCEG score recompute
  48. 2026-09-01 13:54 UTCEPSS rescoreEPSS 0.3% · 25th percentile
  49. 2026-09-01 08:20 UTCEG score recompute
  50. 2026-09-01 04:40 UTCEPSS rescoreEPSS 0.3% · 25th percentile
  51. 2026-08-30 20:31 UTCEG score recompute
  52. 2026-08-30 19:17 UTCEPSS rescoreEPSS 0.3% · 25th percentile
  53. 2026-08-30 01:37 UTCEG score recompute
  54. 2026-08-30 01:22 UTCEPSS rescoreEPSS 0.3% · 25th percentile
  55. 2026-08-29 01:55 UTCEG score recompute
  56. 2026-08-28 21:42 UTCEPSS rescoreEPSS 0.3% · 25th percentile
  57. 2026-08-27 18:45 UTCEG score recompute
  58. 2026-08-27 14:25 UTCEPSS rescoreEPSS 0.3% · 25th percentile
  59. 2026-08-26 18:27 UTCEG score recompute
  60. 2026-08-26 14:46 UTCEPSS rescoreEPSS 0.3% · 25th percentile
  61. 2026-08-25 15:48 UTCEG score recompute
  62. 2026-08-25 13:49 UTCEPSS rescoreEPSS 0.3% · 25th percentile
  63. 2026-08-24 17:02 UTCEG score recompute
  64. 2026-08-24 12:48 UTCEG score recompute
  65. 2026-08-23 02:45 UTCEG score recompute
  66. 2026-08-23 00:19 UTCEPSS rescoreEPSS 0.3% · 26th percentile
  67. 2026-08-22 00:16 UTCEG score recompute
  68. 2026-08-21 23:49 UTCEPSS rescoreEPSS 0.3% · 26th percentile
  69. 2026-08-21 01:35 UTCEG score recompute
  70. 2026-08-20 22:55 UTCEPSS rescoreEPSS 0.3% · 26th percentile
  71. 2026-08-19 23:06 UTCEG score recompute
  72. 2026-08-19 19:20 UTCEG score recompute
  73. 2026-08-19 18:58 UTCEG score recompute
  74. 2026-08-19 16:24 UTCEG score recompute
  75. 2026-08-19 15:38 UTCEG score recomputeFirst assessed: 9.4 CRITICAL

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Frequently asked(5)

What is CVE-2026-62668?
CVE-2026-62668 is a critical-severity vulnerability; its CVE record was published on August 19, 2026. Grav API Plugin is a RESTful API for Grav CMS that provides full headless access to your site's content. Prior to 1.0.6, the Grav API plugin WebhookController.php accepts webhook URLs after only FILTERVALIDATEURL syntax validation, and WebhookDispatcher.php initializes cURL without CURLOPTPROTOCOLS…
When was the CVE record for CVE-2026-62668 published?
The CVE record for CVE-2026-62668 was published on August 19, 2026. That is the record's publication date; the vulnerability itself may have been made public earlier. EchelonGraph's copy of the record carries a last-modified date of September 9, 2026; the record at its source may have been updated since.
Is CVE-2026-62668 actively exploited?
CVE-2026-62668 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 0.4% probability of exploitation in the next 30 days (37th percentile of EPSS-scored CVEs).
What is the CVSS score of CVE-2026-62668?
CVE-2026-62668 has a CVSS base score of 9.4 (a secondary CVSS source that NVD displays; NVD's own analysis pending).
How do I remediate CVE-2026-62668?
A fix for CVE-2026-62668 is available: update to the fixed version the vendor names in its advisory.

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