CVE-2026-84482

HIGHPre-NVD 8.88.8—
EchelonGraph scoreHIGH confidence

Score 8.8 from GitHub Security Advisory (severity: HIGH) published 2026-09-02. a secondary CVSS source baseline 8.8; sources differ by 0.0.

Triggered by: GitHub Security Advisory CVSS
Sources: epss, ghsa, secondary
Trending — 3 sources updated this weekElevated
8.8EG
EchelonGraph verdictPlan a fixSerious severity, but no confirmed exploitation yet.
  • High severity, but no confirmed exploitation yet
CISA-KEV: Not listedEPSS PROB: 0%CVSS: 8.8Exploit: 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 a cross-site request forgery vulnerability in the get_domain() and isSameDomain() functions that fail to properly validate referer origins. Attackers can forge requests from sibling subdomains or unparseable long-gTLD origins to perform administrative ObjectYPT writes including live server configuration changes.

CVSS v3
8.8
EG Score
8.8(high)
EG Risk
56(Track*)
EG Risk 56/100SSVC: 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
Severity88% × 45%
Exploitation40% × 40%
Automatability0% × 15%
Action: Watch closely — could escalate to Attend.
EPSS PROB
0%
EPSS %ILE
4%
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 Cross-Site Request Forgery via get_domain() validation | Advisories | VulnCheck

https://www.vulncheck.com/advisories/wwbn-avideo-cross-site-request-forgery-via-get-domain-validation
github Patch Available🟡 PoC Available

CSRF: broken `get_domain()` / `isSameDomain()` collapses Referer authenticity so sibling-subdomain and long-gTLD origins pass admin ObjectYPT writes · Advisory · WWBN/AVideo · GitHub

https://github.com/WWBN/AVideo/security/advisories/GHSA-jm6j-xqvq-r8p5

Vendor Advisories for CVE-2026-84482(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 26× in last 7d / 71× 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 19:20 UTCEG score recompute
  2. 2026-09-19 19:20 UTCGHSA enrichment
  3. 2026-09-19 06:02 UTCEG score recompute
  4. 2026-09-19 06:02 UTCGHSA enrichment
  5. 2026-09-18 19:28 UTCEPSS rescore
  6. 2026-09-18 16:57 UTCGHSA enrichment
  7. 2026-09-18 03:52 UTCEG score recompute
  8. 2026-09-18 03:52 UTCGHSA enrichment
  9. 2026-09-17 19:32 UTCEPSS rescore
  10. 2026-09-17 14:47 UTCGHSA enrichment
  11. 2026-09-17 01:42 UTCEG score recompute
  12. 2026-09-17 01:42 UTCGHSA enrichment
  13. 2026-09-16 14:09 UTCEPSS rescore
  14. 2026-09-16 12:37 UTCEG score recompute
  15. 2026-09-16 12:36 UTCGHSA enrichment
  16. 2026-09-16 05:15 UTCEPSS rescore
  17. 2026-09-15 23:32 UTCGHSA enrichment
  18. 2026-09-15 10:27 UTCEG score recompute
  19. 2026-09-15 10:27 UTCGHSA enrichment
  20. 2026-09-15 03:12 UTCEPSS rescore
  21. 2026-09-15 03:12 UTCEPSS rescore
  22. 2026-09-14 21:20 UTCGHSA enrichment
  23. 2026-09-14 08:15 UTCGHSA enrichment
  24. 2026-09-13 19:11 UTCEG score recompute
  25. 2026-09-13 19:11 UTCGHSA enrichment
Show 46 more
  1. 2026-09-13 06:06 UTCGHSA enrichment
  2. 2026-09-12 17:01 UTCEG score recompute
  3. 2026-09-12 17:01 UTCGHSA enrichment
  4. 2026-09-12 03:56 UTCEG score recompute
  5. 2026-09-12 03:56 UTCGHSA enrichment
  6. 2026-09-11 14:53 UTCEPSS rescore
  7. 2026-09-11 14:53 UTCEPSS rescore
  8. 2026-09-11 14:51 UTCEG score recompute
  9. 2026-09-11 14:51 UTCGHSA enrichment
  10. 2026-09-11 01:44 UTCGHSA enrichment
  11. 2026-09-10 12:39 UTCEG score recompute
  12. 2026-09-10 12:39 UTCGHSA enrichment
  13. 2026-09-09 23:34 UTCGHSA enrichment
  14. 2026-09-09 09:55 UTCEG score recompute
  15. 2026-09-09 09:55 UTCGHSA enrichment
  16. 2026-09-08 22:01 UTCEPSS rescore
  17. 2026-09-08 20:50 UTCGHSA enrichment
  18. 2026-09-08 03:58 UTCEG score recompute
  19. 2026-09-08 03:58 UTCGHSA enrichment
  20. 2026-09-07 14:53 UTCGHSA enrichment
  21. 2026-09-07 00:29 UTCEG score recompute
  22. 2026-09-07 00:29 UTCGHSA enrichment
  23. 2026-09-06 13:48 UTCEPSS rescore
  24. 2026-09-06 11:24 UTCGHSA enrichment
  25. 2026-09-05 22:20 UTCEG score recompute
  26. 2026-09-05 22:20 UTCGHSA enrichment
  27. 2026-09-05 15:31 UTCEPSS rescore
  28. 2026-09-05 09:13 UTCGHSA enrichment
  29. 2026-09-04 20:08 UTCEG score recompute
  30. 2026-09-04 20:07 UTCGHSA enrichment
  31. 2026-09-04 06:59 UTCEG score recompute
  32. 2026-09-04 06:58 UTCGHSA enrichment
  33. 2026-09-04 05:07 UTCEPSS rescore
  34. 2026-09-03 17:48 UTCGHSA enrichment
  35. 2026-09-03 04:41 UTCEG score recompute
  36. 2026-09-03 04:40 UTCGHSA enrichment
  37. 2026-09-02 15:31 UTCEG score recompute
  38. 2026-09-02 15:31 UTCGHSA enrichment
  39. 2026-09-02 14:46 UTCEG score recompute
  40. 2026-09-02 14:46 UTCGHSA enrichment
  41. 2026-09-02 14:12 UTCEPSS rescore
  42. 2026-09-02 12:32 UTCEG score recompute
  43. 2026-09-02 12:32 UTCGHSA enrichment
  44. 2026-09-01 23:25 UTCEG score recompute
  45. 2026-09-01 22:28 UTCEG score recompute
  46. 2026-09-01 22:27 UTCMITRE cvelistV5first tracked

Frequently asked(5)

What is CVE-2026-84482?
CVE-2026-84482 is a high vulnerability published on September 1, 2026. WWBN AVideo through commit 9c39d8c8 contains a cross-site request forgery vulnerability in the get_domain() and isSameDomain() functions that fail to properly validate referer origins. Attackers can forge requests from sibling subdomains or unparseable long-gTLD origins to perform administrative…
When was CVE-2026-84482 disclosed?
CVE-2026-84482 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-2026-84482 actively exploited?
CVE-2026-84482 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 96.5% of all scored CVEs.
What is the CVSS score of CVE-2026-84482?
CVE-2026-84482 has a CVSS v3 base score of 8.8 (NVD).
How do I remediate CVE-2026-84482?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2026-84482, 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-2026-84482

Explore →

Is Your Infrastructure Affected by CVE-2026-84482?

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

Start Free Scan →Browse All CVEs