CVE-2026-7713

MEDIUMNVD 6.36.3—
EchelonGraph scoreMEDIUM confidence

Score 6.3 from GitHub Security Advisory (severity: LOW) published 2026-05-04. NVD baseline CVSS 6.3; sources differ by 0.0.

Triggered by: GitHub Security Advisory CVSS
Sources: epss, ghsa, nvd
Trending — 3 sources updated this weekElevated
6.3
EchelonGraph verdictMonitorLow exploitation likelihood right now — keep watching.
  • Lower severity and no public exploit yet
CISA-KEV: Not listedEPSS: 0%CVSS: 6.3Exploit: NoneExposed: 0

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

A vulnerability was detected in crocodilestick Calibre-Web-Automated up to 4.0.6. Affected by this vulnerability is the function generate_auth_token of the file cps/kobo_auth.py of the component Kobo auth-token Route. The manipulation results in improper authorization. The attack may be performed from remote. The exploit is now public and may be used. Upgrading to version 4.0.7 addresses this issue. The patch is identified as 9f50bb2c16160564c9f8777dc2ceed3eb95e4807. The affected component should be upgraded.

CVSS v3
6.3
EG Score
6.3(medium)
EG Risk
44(Track)
EG Risk 44/100SSVC: 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
Severity63% × 45%
Exploitation40% × 40%
Automatability0% × 15%
Action: Routine — remediate on your standard cadence.
EPSS
19.3%
KEV
Not listed

Published

May 4, 2026

Last Modified

May 5, 2026

Advisory Details (6)

Auto-updated Jun 14, 2026
Patch available. Sources: github_commit, github_pr, github_release.
github_release Patch Available

v4.0.7

Patch available: new-usemame/Calibre-Web-NextGen v4.0.7

https://github.com/new-usemame/Calibre-Web-NextGen/releases/tag/v4.0.7
github_pr Patch Available

security(kobo_auth): close IDOR in token generation / deletion (#1303 upstream)

Patch available: new-usemame/Calibre-Web-NextGen v4.0.133 (PR #18 merged 2026-05-02)

https://github.com/new-usemame/Calibre-Web-NextGen/pull/18
github_commit Patch Available

commit 9f50bb2c1616 (new-usemame/Calibre-Web-NextGen)

Patch available: new-usemame/Calibre-Web-NextGen v4.0.133 (contains commit 9f50bb2c1616)

https://github.com/new-usemame/Calibre-Web-NextGen/commit/9f50bb2c16160564c9f8777dc2ceed3eb95e4807
generic

IDOR in Kobo Auth Token Generation Enables Account Impersonation · Issue #1303 · crocodilestick/Calibre-Web-Automated · GitHub

https://github.com/crocodilestick/Calibre-Web-Automated/issues/1303
generic

GitHub - crocodilestick/Calibre-Web-Automated: Calibre-Web but Automated and with tons of New Features! Fully automate and simplify your eBook set up! · GitHub

https://github.com/crocodilestick/Calibre-Web-Automated/
generic

Calibre-Web-Automated IDOR · GitHub

https://gist.github.com/menelausx/ef98aa78ed2869ccaa316ff45ed1a440

Weakness Classification(2)

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

Data Freshness Timeline

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

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Frequently asked(5)

What is CVE-2026-7713?
CVE-2026-7713 is a medium vulnerability published on May 4, 2026. A vulnerability was detected in crocodilestick Calibre-Web-Automated up to 4.0.6. Affected by this vulnerability is the function generateauthtoken of the file cps/kobo_auth.py of the component Kobo auth-token Route. The manipulation results in improper authorization. The attack may be performed…
When was CVE-2026-7713 disclosed?
CVE-2026-7713 was first published in the National Vulnerability Database on May 4, 2026, with the most recent update on May 5, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2026-7713 actively exploited?
CVE-2026-7713 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 19.3% percentile likelihood of exploitation in the next 30 days — higher percentiles indicate greater predicted risk.
What is the CVSS score of CVE-2026-7713?
CVE-2026-7713 has a CVSS v3 base score of 6.3 (NVD).
How do I remediate CVE-2026-7713?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2026-7713, 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.

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