CVE-2026-76633

HIGHPre-NVD 8.18.1—
EchelonGraph scoreMEDIUM confidence

Score 8.1 from GitHub Security Advisory (severity: HIGH) published 2026-08-20. The CNA's CVSS baseline 8.1; sources differ by 0.0.

Triggered by: GitHub Security Advisory CVSS
Sources: cna:vulncheck, epss, ghsa
Trending — 3 sources updated this week
8.1EG
EchelonGraph verdictPlan a fixSerious severity, but no confirmed exploitation yet.
  • High severity, but no confirmed exploitation yet
CISA-KEV: Not listedEPSS PROB: 0.4%CVSS: 8.1Exploit: None knownExposed services: Not assessed

A fix is available — apply it.

WeGIA before 3.9.2 contains an authorization bypass vulnerability in the password change flow that allows any authenticated user to change their account password without providing existing credentials by exploiting the unconditional exclusion of the alterarSenha method from permission checks in controle/control.php. Attackers can manipulate the redir parameter to point to alterar_senha.php, routing through verificarSenhaConfig() instead of verificarSenha() to bypass current password verification and convert temporary session access into permanent account takeover.

CVSS v3
8.1
EG Score
8.1HIGHmedium confidence
EG Risk
37
EG Risk 37/100CISA SSVC

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
Severity81% × 45%
Exploitation0% × 40%
Automatability0% × 15%
CISA SSVC: Track at low or medium mission impact; Track* at high (mission-essential systems).
Action: A fix is available. Apply it within your standard update timelines.
EPSS PROB
0.4%
EPSS %ILE
35th
KEV
Not listed

CISA SSVCTrack at low or medium mission impact; Track* at high (mission-essential systems).

A fix is available. Apply it within your standard update timelines.

Exploitation none (CISA Vulnrichment) · Automatable no (CISA Vulnrichment) · Technical impact total (CISA Vulnrichment). Mission impact is CISA's Mission & Well-being decision point, and only you can judge it: high means the affected system is essential to your organisation's mission, or its compromise could cause irreversible harm to people. CISA's decision table

Published

August 20, 2026

Last Modified

October 1, 2026

Advisory Details (3)

Auto-updated Aug 20, 2026
🔬 Proof of concept available. Patch available. Sources: github.
generic

WeGIA < 3.9.2 Authorization Bypass Password Change via alterarSenha | Advisories | VulnCheck

https://www.vulncheck.com/advisories/wegia-authorization-bypass-password-change-via-alterarsenha
generic

Releases · LabRedesCefetRJ/WeGIA · GitHub

https://github.com/LabRedesCefetRJ/WeGIA/releases#release-3.9.2
github Patch Available🟡 PoC Available

Authorization Bypass and Unverified Password Change via `alterarSenha` in WeGIA · Advisory · LabRedesCefetRJ/WeGIA · GitHub

https://github.com/LabRedesCefetRJ/WeGIA/security/advisories/GHSA-gfcx-7973-hjmp

Vendor Advisories for CVE-2026-76633(1)

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

Weakness Classification(2)

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

Data Freshness Timeline

(refreshed 24× in last 7d / 110× 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 179 total refreshes for this CVE.

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

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Frequently asked(5)

What is CVE-2026-76633?
CVE-2026-76633 is a high vulnerability published on August 20, 2026. WeGIA before 3.9.2 contains an authorization bypass vulnerability in the password change flow that allows any authenticated user to change their account password without providing existing credentials by exploiting the unconditional exclusion of the alterarSenha method from permission checks in…
When was CVE-2026-76633 disclosed?
CVE-2026-76633 was first published on August 20, 2026, with the most recent update on October 1, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2026-76633 actively exploited?
CVE-2026-76633 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 0.4% probability of exploitation in the next 30 days (35th percentile of EPSS-scored CVEs).
What is the CVSS score of CVE-2026-76633?
CVE-2026-76633 has a CVSS base score of 8.1 (the CNA's own assessment, by vulncheck; NVD's own analysis pending).
How do I remediate CVE-2026-76633?
A fix for CVE-2026-76633 is available: update to the fixed version the vendor names in its advisory. The vendor advisories EchelonGraph has for CVE-2026-76633 are linked in the Vendor Advisories panel on this page.

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