CVE-2026-89240

MEDIUMPre-NVD 6.16.1—
EchelonGraph scoreHIGH confidence

Score 6.1 from GitHub Security Advisory published 2026-09-11. a secondary CVSS source baseline 6.1; sources differ by 0.0.

Triggered by: GitHub Security Advisory CVSS
Sources: epss, ghsa, secondary
Trending — 3 sources updated this weekElevated
6.1EG
EchelonGraph verdictMonitorLow exploitation likelihood right now — keep watching.
  • Lower severity and no public exploit yet
CISA-KEV: Not listedEPSS PROB: 0%CVSS: 6.1Exploit: 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 c3edcc274c389816d434acadac07ee78eaf330c1 contains a reflected cross-site scripting vulnerability in plugin/Live/confirmLivePassword.php. The script interpolates the unauthenticated GET parameter u (which is not covered by $securityFilter) directly into an attribute without URL- or HTML-encoding. A remote attacker can craft a link containing a double-quote character in u (with a non-empty key parameter and no valid c parameter) to close the src attribute and inject an additional tag with an onerror handler, executing arbitrary JavaScript in the site's origin in the browser of any user, including an administrator, who opens the link. No patched version was available at the time of the advisory.

CVSS v3
6.1
EG Score
6.1(high)
EG Risk
43(Track)
EG Risk 43/100SSVC: 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
Severity61% × 45%
Exploitation40% × 40%
Automatability0% × 15%
Action: Routine — remediate on your standard cadence.
EPSS PROB
0%
EPSS %ILE
22%
KEV
Not listed

Published

September 11, 2026

Last Modified

September 11, 2026

Advisory Details (2)

Auto-updated Sep 11, 2026
🔬 Proof of concept available. Patch available. Sources: github.
generic

WWBN AVideo Reflected XSS via confirmLivePassword.php | Advisories | VulnCheck

https://www.vulncheck.com/advisories/wwbn-avideo-reflected-xss-via-confirmlivepassword-php
github Patch Available🟡 PoC Available

Reflected XSS: `plugin/Live/confirmLivePassword.php` interpolates `$_GET['u']` into `<img src>` without encoding · Advisory · WWBN/AVideo · GitHub

https://github.com/WWBN/AVideo/security/advisories/GHSA-87qx-9wgx-954f

Vendor Advisories for CVE-2026-89240(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 / 48× 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. 2026-09-24 18:16 UTCEG score recompute
  2. 2026-09-24 18:16 UTCGHSA enrichment
  3. 2026-09-24 14:04 UTCEPSS rescore
  4. 2026-09-23 19:34 UTCEG score recompute
  5. 2026-09-23 19:34 UTCGHSA enrichment
  6. 2026-09-23 17:54 UTCEPSS rescore
  7. 2026-09-22 19:57 UTCEG score recompute
  8. 2026-09-22 19:57 UTCGHSA enrichment
  9. 2026-09-22 16:01 UTCEPSS rescore
  10. 2026-09-21 21:36 UTCEG score recompute
  11. 2026-09-21 21:36 UTCGHSA enrichment
  12. 2026-09-21 21:09 UTCEPSS rescore
  13. 2026-09-20 23:13 UTCEG score recompute
  14. 2026-09-20 23:13 UTCGHSA enrichment
  15. 2026-09-20 20:16 UTCEPSS rescore
  16. 2026-09-20 00:51 UTCEG score recompute
  17. 2026-09-20 00:51 UTCGHSA enrichment
  18. 2026-09-19 02:29 UTCEG score recompute
  19. 2026-09-19 02:29 UTCGHSA enrichment
  20. 2026-09-18 19:28 UTCEPSS rescore
  21. 2026-09-18 04:06 UTCEG score recompute
  22. 2026-09-18 04:06 UTCGHSA enrichment
  23. 2026-09-17 19:32 UTCEPSS rescore
  24. 2026-09-17 05:44 UTCEG score recompute
  25. 2026-09-17 05:43 UTCGHSA enrichment
Show 23 more
  1. 2026-09-16 14:09 UTCEPSS rescore
  2. 2026-09-16 07:19 UTCEG score recompute
  3. 2026-09-16 07:19 UTCGHSA enrichment
  4. 2026-09-16 05:15 UTCEPSS rescore
  5. 2026-09-15 08:57 UTCEG score recompute
  6. 2026-09-15 08:57 UTCGHSA enrichment
  7. 2026-09-15 03:12 UTCEPSS rescore
  8. 2026-09-14 10:35 UTCEG score recompute
  9. 2026-09-14 10:35 UTCGHSA enrichment
  10. 2026-09-13 16:48 UTCEPSS rescore
  11. 2026-09-13 12:12 UTCEG score recompute
  12. 2026-09-13 12:12 UTCGHSA enrichment
  13. 2026-09-12 15:02 UTCEPSS rescore
  14. 2026-09-12 13:51 UTCGHSA enrichment
  15. 2026-09-11 15:29 UTCEG score recompute
  16. 2026-09-11 15:29 UTCGHSA enrichment
  17. 2026-09-11 14:23 UTCEG score recompute
  18. 2026-09-11 14:23 UTCGHSA enrichment
  19. 2026-09-11 14:00 UTCEG score recompute
  20. 2026-09-11 14:00 UTCGHSA enrichment
  21. 2026-09-11 12:23 UTCEG score recompute
  22. 2026-09-11 11:29 UTCEG score recompute
  23. 2026-09-11 11:24 UTCMITRE cvelistV5first tracked

Related CVEs(same CWE)

Frequently asked(5)

What is CVE-2026-89240?
CVE-2026-89240 is a medium vulnerability published on September 11, 2026. WWBN AVideo through commit c3edcc274c389816d434acadac07ee78eaf330c1 contains a reflected cross-site scripting vulnerability in plugin/Live/confirmLivePassword.php. The script interpolates the unauthenticated GET parameter u (which is not covered by $securityFilter) directly into an <img src="...">…
When was CVE-2026-89240 disclosed?
CVE-2026-89240 was first published in the National Vulnerability Database on September 11, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2026-89240 actively exploited?
CVE-2026-89240 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 78.4% of all scored CVEs.
What is the CVSS score of CVE-2026-89240?
CVE-2026-89240 has a CVSS v3 base score of 6.1 (NVD).
How do I remediate CVE-2026-89240?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2026-89240, 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

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