CVE-2026-84483

MEDIUMPre-NVD 5.35.3—
EchelonGraph scoreHIGH confidence

Score 5.3 from GitHub Security Advisory published 2026-09-02. a secondary CVSS source baseline 5.3; sources differ by 0.0.

Triggered by: GitHub Security Advisory CVSS
Sources: epss, ghsa, secondary
Trending — 3 sources updated this weekElevated
5.3EG
EchelonGraph verdictMonitorLow exploitation likelihood right now — keep watching.
  • Lower severity and no public exploit yet
CISA-KEV: Not listedEPSS PROB: 0%CVSS: 5.3Exploit: Elevated riskExposed: 0

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

WWBN AVideo through commit 9c39d8c8 contains an incomplete authentication bypass in encryptPass.json.php that allows unauthenticated attackers to compute valid HMAC tokens using the public site URL and current time. Attackers can forge authentication tokens by computing hash_hmac with the site's base URL as the key and submit arbitrary passwords to receive encrypted hashes, enabling offline precomputation attacks against stolen password databases.

CVSS v3
5.3
EG Score
5.3(high)
EG Risk
55(Attend)
EG Risk 55/100SSVC: Attend

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
Severity53% × 45%
Exploitation40% × 40%
Automatability100% × 15%
Action: Remediate soon — notable exploitation risk.
EPSS PROB
0%
EPSS %ILE
19%
KEV
Not listed

Published

September 1, 2026

Last Modified

September 8, 2026

Advisory Details (2)

Auto-updated Sep 1, 2026
🔬 Proof of concept available. Patch available. Sources: github.
generic

WWBN AVideo Unauthenticated Password Hash Oracle via encryptPass.json.php | Advisories | VulnCheck

https://www.vulncheck.com/advisories/wwbn-avideo-unauthenticated-password-hash-oracle-via-encryptpass-json-php
github Patch Available🟡 PoC Available

Incomplete fix for GHSA-px7x-gq96-rmp5: `objects/encryptPass.json.php` keys its HMAC gate with `$global['webSiteRootURL']`, so the password-hash oracle is still unauthenticated · Advisory · WWBN/AVideo · GitHub

https://github.com/WWBN/AVideo/security/advisories/GHSA-q92q-q2f7-v4fc

Vendor Advisories for CVE-2026-84483(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 20× in last 7d / 51× 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. 2026-09-19 08:54 UTCEG score recompute
  2. 2026-09-19 08:54 UTCGHSA enrichment
  3. 2026-09-18 19:28 UTCEPSS rescore
  4. 2026-09-18 07:47 UTCEG score recompute
  5. 2026-09-18 07:47 UTCGHSA enrichment
  6. 2026-09-17 19:32 UTCEPSS rescore
  7. 2026-09-17 06:47 UTCEG score recompute
  8. 2026-09-17 06:47 UTCGHSA enrichment
  9. 2026-09-16 14:09 UTCEPSS rescore
  10. 2026-09-16 05:35 UTCEG score recompute
  11. 2026-09-16 05:35 UTCGHSA enrichment
  12. 2026-09-16 05:15 UTCEPSS rescore
  13. 2026-09-15 04:35 UTCEG score recompute
  14. 2026-09-15 04:35 UTCGHSA enrichment
  15. 2026-09-15 03:12 UTCEPSS rescore
  16. 2026-09-15 03:12 UTCEPSS rescore
  17. 2026-09-14 03:35 UTCEG score recompute
  18. 2026-09-14 03:35 UTCGHSA enrichment
  19. 2026-09-13 02:35 UTCEG score recompute
  20. 2026-09-13 02:35 UTCGHSA enrichment
  21. 2026-09-12 01:34 UTCEG score recompute
  22. 2026-09-12 01:34 UTCGHSA enrichment
  23. 2026-09-11 14:53 UTCEPSS rescore
  24. 2026-09-11 14:53 UTCEPSS rescore
  25. 2026-09-11 00:34 UTCEG score recompute
Show 26 more
  1. 2026-09-11 00:34 UTCGHSA enrichment
  2. 2026-09-09 23:34 UTCEG score recompute
  3. 2026-09-09 23:34 UTCGHSA enrichment
  4. 2026-09-08 22:01 UTCEPSS rescore
  5. 2026-09-08 20:50 UTCGHSA enrichment
  6. 2026-09-08 07:29 UTCGHSA enrichment
  7. 2026-09-07 06:29 UTCEG score recompute
  8. 2026-09-07 06:28 UTCGHSA enrichment
  9. 2026-09-06 13:48 UTCEPSS rescore
  10. 2026-09-06 05:24 UTCEG score recompute
  11. 2026-09-06 05:24 UTCGHSA enrichment
  12. 2026-09-05 15:31 UTCEPSS rescore
  13. 2026-09-05 04:23 UTCEG score recompute
  14. 2026-09-05 04:23 UTCGHSA enrichment
  15. 2026-09-04 05:07 UTCEPSS rescore
  16. 2026-09-04 03:23 UTCEG score recompute
  17. 2026-09-04 03:23 UTCGHSA enrichment
  18. 2026-09-04 02:34 UTCEG score recompute
  19. 2026-09-04 02:34 UTCGHSA enrichment
  20. 2026-09-04 01:25 UTCGHSA enrichment
  21. 2026-09-03 00:25 UTCEG score recompute
  22. 2026-09-03 00:25 UTCGHSA enrichment
  23. 2026-09-02 14:12 UTCEPSS rescore
  24. 2026-09-01 23:25 UTCEG score recompute
  25. 2026-09-01 22:29 UTCEG score recompute
  26. 2026-09-01 22:27 UTCMITRE cvelistV5first tracked

Frequently asked(5)

What is CVE-2026-84483?
CVE-2026-84483 is a medium vulnerability published on September 1, 2026. WWBN AVideo through commit 9c39d8c8 contains an incomplete authentication bypass in encryptPass.json.php that allows unauthenticated attackers to compute valid HMAC tokens using the public site URL and current time. Attackers can forge authentication tokens by computing hash_hmac with the site's…
When was CVE-2026-84483 disclosed?
CVE-2026-84483 was first published in the National Vulnerability Database on September 1, 2026, with the most recent update on September 8, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2026-84483 actively exploited?
CVE-2026-84483 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 81.3% of all scored CVEs.
What is the CVSS score of CVE-2026-84483?
CVE-2026-84483 has a CVSS v3 base score of 5.3 (NVD).
How do I remediate CVE-2026-84483?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2026-84483, 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

Explore the affected products and dependency analysis for CVE-2026-84483

Explore →

Is Your Infrastructure Affected by CVE-2026-84483?

EchelonGraph automatically scans your cloud infrastructure and maps CVE exposure using blast radius analysis.

Start Free Scan →Browse All CVEs