CVE-2026-50182

MEDIUMPre-NVD 6.16.1
EchelonGraph scoreMEDIUM confidence

“—” beside the score: it is equal to the CVSS score beside it.

Score 6.1 from GitHub Security Advisory published 2026-06-04. A secondary CVSS source baseline 6.1; sources differ by 0.0.

Triggered by: GitHub Security Advisory CVSS
Sources: EPSS, GitHub Security Advisory, a secondary CVSS source
Elevated

Also known asEUVD-2026-44827 (ENISA EUVD) · GHSA-hgjh-6wj8-gcgf (GitHub Security Advisories)Source: ENISA EUVD

6.1EG
EchelonGraph verdictPlan mitigationNo fix is confirmed yet: check the vendor's advisory for a fixed release; until one is applied, restrict network exposure of the affected system or apply the vendor's mitigation on your normal schedule (the SSVC decision on this page).
  • CISA's Vulnrichment rates exploitation as PoC; EchelonGraph holds no exploit-code reference for it
CISA-KEV: Not listedEPSS PROB: 0.2%CVSS: 6.1Exploit: No code on recordExposed services: Not assessed

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

The CVE record's description, written by its CNA (GitHub, Inc.), states the affected versions: "Versions prior to 29.0 contain an unauthenticated Reflected XSS vulnerability through AVideo YouTubeAPI Gallery Pagination." No release containing a fix is confirmed on record.

WWBN AVideo is an open source video platform. Versions prior to 29.0 contain an unauthenticated Reflected XSS vulnerability through AVideo YouTubeAPI Gallery Pagination. The $_GET['search'] query parameter is concatenated directly into the href attribute of two pagination links in plugin/YouTubeAPI/gallerySection.php (lines 67 and 74) with no htmlspecialchars, no urlencode, and no allow-list check. An injected element is then extracted by the AVideo Layout plugin and concatenated into a single trailing inline script block at the bottom of the page, where the browser executes it. Any unauthenticated attacker can lure a victim into following a crafted URL to execute arbitrary JavaScript under the AVideo origin, which can read non-HttpOnly cookies and issue authenticated AJAX requests as the victim, and when the victim is an administrator, it can perform any cookie-authenticated admin action (create user, promote to admin, change configuration, install plugin), escalating a single click into full administrative takeover. This issue has been patched by this commit: https://github.com/WWBN/AVideo/commit/f50fc033b7adb36f1ffd6640e7826468bdafdec3.

CVSS v3
6.1
EG Score
6.1MEDIUMmedium confidence
EG Risk
43
EG Risk 43/100

EG Risk is EchelonGraph's 0–100 priority score. It fuses impact severity (EG Severity, the CVSS base score, never the KEV-floored or EPSS-lifted EG Score) with real-world exploitation and automatability, under weights EchelonGraph set by hand, so you can rank equal-severity CVEs and fix the most dangerous first. Higher = act sooner.

How it’s computed (value × EchelonGraph’s weight)
Severity61% × 45%
Impact severity (EG Severity): CVSS 6.1 of 10. Never the KEV-floored or EPSS-lifted EG Score.
Exploitation40% × 40%
EchelonGraph's fixed weight for EG-KEV Tier 3 (Elevated): a constant, not a probability.
Automatability0% × 15%
CISA's SSVC Automatable value: no (Vulnrichment).
SSVC (CISA's decision table, applied by EchelonGraph): Track at low or medium mission impact; Track* at high (mission-essential systems).
Exploitation public PoC (CISA Vulnrichment) · Automatable no (CISA Vulnrichment) · Technical impact partial (CISA Vulnrichment). All three are CISA's SSVC values (Vulnrichment). EchelonGraph applied CISA's decision table to them; CISA publishes SSVC inputs and the table, not a decision for each CVE.
Action: No fix is confirmed yet. Check the vendor's advisory for a fixed release; until one is applied, restrict network exposure of the affected system or apply the vendor's mitigation on your normal schedule.
EPSS PROB
0.2%
EPSS %ILE
12th
KEV
Not listed

What the EG score is made of (scorer v4.0: the three questions the 0–10 score mixes, published apart · methodology)

The EG score (6.1): severity, escalated by confirmed exploitation. This CVE's 6.1 is its impact severity (EG Severity), not escalated.

EG Severity
6.1 MEDIUMCVSS-B, impact only: no KEV listing, EPSS or EG-KEV tier raises it.GitHub Security Advisory CVSS
EG Likelihood
0.2% within 30 daysSource: FIRST EPSS. FIRST's exploitation probability, not an EchelonGraph model.
Confirmed exploitation
None on record (CISA KEV, EG-KEV Tier 1)Reported apart from the likelihood: an observed fact, not a probability.
EG Priority
SSVC Track at medium mission impactTrack at low or medium mission impact; Track* at high (mission-essential systems).CISA BOD 26-04: 60 days if the affected system is publicly exposed; Fix on system upgrade if it is not.No released fix is confirmed on this page, but CISA's timeline does not wait for a fix's release: it starts when an agency identifies the flaw on an asset and updates the CDM Agency and Federal Dashboard, and the directive counts patching, decommissioning the system or another action as remediation. Until a fixed release is applied, mitigate as this page's verdict says. In the directive's words, “Fix on system upgrade” means that, “unless conditions change”, the vulnerability “should be remediated the next time the vulnerable asset receives a scheduled major upgrade or rebuild”: its timelines are “dynamic as facts change”, and a KEV listing shortens them.Each input and its source, and whom BOD 26-04 binds: the SSVC and BOD 26-04 blocks below.

SSVC (CISA's decision table, applied by EchelonGraph)Track at low or medium mission impact; Track* at high (mission-essential systems).

No fix is confirmed yet. Check the vendor's advisory for a fixed release; until one is applied, restrict network exposure of the affected system or apply the vendor's mitigation on your normal schedule.

Exploitation public PoC (CISA Vulnrichment) · Automatable no (CISA Vulnrichment) · Technical impact partial (CISA Vulnrichment). All three are CISA's SSVC values (Vulnrichment). EchelonGraph applied CISA's decision table to them; CISA publishes SSVC inputs and the table, not a decision for each CVE. Mission impact is CISA's Mission & Well-being decision point, and only you can judge it. CISA's table makes it high when Mission Prevalence is Essential — the vulnerable component "directly provides capabilities that constitute at least one MEF for at least one entity" (MEF: mission essential function) — or when Public Well-Being Impact is Irreversible: "multiple fatalities are likely", the cyber-physical system "is likely lost or destroyed", "extreme or serious externalities" are imposed on other parties, or social systems such as elections or the financial grid "are destabilized and potentially collapse". CISA's decision table

BOD 26-04 (CISA's remediation timeline, Table 1)60 days if the affected system is publicly exposed; Fix on system upgrade if it is not.

No released fix is confirmed on this page, but CISA's timeline does not wait for a fix's release: it starts when an agency identifies the flaw on an asset and updates the CDM Agency and Federal Dashboard, and the directive counts patching, decommissioning the system or another action as remediation. Until a fixed release is applied, mitigate as this page's verdict says. In the directive's words, “Fix on system upgrade” means that, “unless conditions change”, the vulnerability “should be remediated the next time the vulnerable asset receives a scheduled major upgrade or rebuild”: its timelines are “dynamic as facts change”, and a KEV listing shortens them.

The score's inputs: In CISA KEV no (CISA's KEV catalog) · Automatable no (CISA Vulnrichment) · Technical impact partial (CISA Vulnrichment). Whether your system is publicly exposed is yours to answer. BOD 26-04 binds US Federal Civilian Executive Branch agencies; for anyone else it is CISA's published timeline, a reference rather than an obligation. The directive · how EchelonGraph applies it

Published

June 4, 2026

Last Modified

October 24, 2026

Advisory Details (2)

Auto-updated Jul 15, 2026
No fix on record yet. Sources: github_commit, github.
GitHub advisoryMentions a patch (unverified)

Unauthenticated Reflected XSS via $_GET['search'] in AVideo YouTubeAPI Gallery Pagination · Advisory · WWBN/AVideo · GitHub

https://github.com/WWBN/AVideo/security/advisories/GHSA-hgjh-6wj8-gcgf
GitHub commit

commit f50fc033b7ad (WWBN/AVideo)

Fix landed in WWBN/AVideo commit f50fc033b7ad — awaiting tagged release

https://github.com/WWBN/AVideo/commit/f50fc033b7adb36f1ffd6640e7826468bdafdec3

Vendor Advisories for CVE-2026-50182(1)

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

Patch Availability(1)

Vendor / EcosystemFix (by version range) / PatchReleasedSource
composerWWBN/AVideo—ghsa

Patches are aggregated from vendor advisories (Red Hat, Microsoft, Cisco, GitHub) and package ecosystems (OSV, GHSA). Multiple rows for the same upstream release have been deduplicated.

Affected Packages

(1 across 1 ecosystem)
Packagist(1)
PackageVulnerable rangeFix by version rangeDependents
WWBN/AVideo—
  • every version through 29.0: no fix on record
—

Weakness Classification(1)

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

Data Freshness Timeline

(refreshed 6× in last 7d / 39× in last 30d)

Each row is a time one of our pipelines fetched, updated or re-scored this CVE. 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. An arrow marks a change the record states ("CVSS v3 → 9.1"); EPSS and GHSA rows show the values recorded at that time, not what changed (EPSS values are rounded; hover one for the exact figures). Most recent first.

Showing the most recent 100 of 187 refreshes on record for this CVE.

A repeat, a row identical to one the same pipeline wrote less than 10 seconds earlier, is not a separate refresh and is not counted. None are among the latest 100 rows. The 87 oldest rows on record are not shown and were not checked, so the counts can still include repeats.

  1. 2026-11-01 16:34 UTCEPSS rescoreEPSS 0.2% · 12th percentile
  2. 2026-10-31 16:33 UTCEPSS rescoreEPSS 0.2% · 12th percentile
  3. 2026-10-30 16:34 UTCEPSS rescoreEPSS 0.2% · 12th percentile
  4. 2026-10-29 16:33 UTCEPSS rescoreEPSS 0.2% · 12th percentile
  5. 2026-10-28 16:32 UTCEPSS rescoreEPSS 0.2% · 12th percentile
  6. 2026-10-27 16:32 UTCEPSS rescoreEPSS 0.2% · 12th percentile
  7. 2026-10-26 16:31 UTCEPSS rescoreEPSS 0.2% · 12th percentile
  8. 2026-10-25 16:33 UTCEPSS rescoreEPSS 0.2% · 12th percentile
  9. 2026-10-25 14:22 UTCEG score recompute
  10. 2026-10-24 21:27 UTCEG score recompute
  11. 2026-10-24 21:27 UTCGHSA enrichmentGHSA-hgjh-6wj8-gcgf · GitHub CVSS 6.1
  12. 2026-10-24 16:33 UTCEPSS rescoreEPSS 0.3% · 20th percentile
  13. 2026-10-23 16:32 UTCEPSS rescoreEPSS 0.3% · 20th percentile
  14. 2026-10-22 22:57 UTCEG score recompute
  15. 2026-10-22 22:57 UTCGHSA enrichmentGHSA-hgjh-6wj8-gcgf · GitHub CVSS 6.1
  16. 2026-10-22 16:34 UTCEPSS rescoreEPSS 0.3% · 20th percentile
  17. 2026-10-21 16:33 UTCEPSS rescoreEPSS 0.3% · 19th percentile
  18. 2026-10-20 16:33 UTCEPSS rescoreEPSS 0.3% · 19th percentile
  19. 2026-10-19 16:32 UTCEPSS rescoreEPSS 0.3% · 19th percentile
  20. 2026-10-18 16:32 UTCEPSS rescoreEPSS 0.3% · 19th percentile
  21. 2026-10-18 03:33 UTCEG score recompute
  22. 2026-10-17 16:34 UTCEPSS rescoreEPSS 0.3% · 19th percentile
  23. 2026-10-16 16:42 UTCEPSS rescoreEPSS 0.3% · 19th percentile
  24. 2026-10-15 16:32 UTCEPSS rescoreEPSS 0.3% · 19th percentile
  25. 2026-10-14 16:33 UTCEPSS rescoreEPSS 0.3% · 19th percentile
Show 75 more
  1. 2026-10-13 16:34 UTCEPSS rescoreEPSS 0.3% · 19th percentile
  2. 2026-10-12 16:34 UTCEPSS rescoreEPSS 0.3% · 19th percentile
  3. 2026-10-12 15:59 UTCEG score recompute
  4. 2026-10-11 19:42 UTCEG score recompute
  5. 2026-10-11 16:57 UTCEG score recompute
  6. 2026-10-11 14:21 UTCEG score recompute
  7. 2026-10-11 13:49 UTCEPSS rescoreEPSS 0.3% · 19th percentile
  8. 2026-10-10 20:00 UTCEPSS rescoreEPSS 0.3% · 19th percentile
  9. 2026-10-09 20:07 UTCEPSS rescoreEPSS 0.3% · 19th percentile
  10. 2026-10-08 17:12 UTCEPSS rescoreEPSS 0.3% · 19th percentile
  11. 2026-10-07 23:48 UTCEPSS rescoreEPSS 0.3% · 19th percentile
  12. 2026-10-06 15:18 UTCEPSS rescoreEPSS 0.3% · 19th percentile
  13. 2026-10-05 17:43 UTCEPSS rescoreEPSS 0.3% · 19th percentile
  14. 2026-10-04 23:22 UTCEPSS rescoreEPSS 0.3% · 19th percentile
  15. 2026-10-03 14:26 UTCEPSS rescoreEPSS 0.3% · 19th percentile
  16. 2026-10-03 12:09 UTCOSV refresh
  17. 2026-10-02 17:56 UTCEPSS rescoreEPSS 0.3% · 19th percentile
  18. 2026-10-01 19:50 UTCEPSS rescoreEPSS 0.3% · 19th percentile
  19. 2026-09-30 15:03 UTCEPSS rescoreEPSS 0.3% · 19th percentile
  20. 2026-09-28 13:51 UTCEPSS rescoreEPSS 0.3% · 18th percentile
  21. 2026-09-27 13:48 UTCEPSS rescoreEPSS 0.3% · 18th percentile
  22. 2026-09-26 15:59 UTCEPSS rescoreEPSS 0.3% · 18th percentile
  23. 2026-09-26 00:27 UTCEPSS rescoreEPSS 0.3% · 18th percentile
  24. 2026-09-23 17:53 UTCEPSS rescoreEPSS 0.3% · 21st percentile
  25. 2026-09-20 20:16 UTCEPSS rescoreEPSS 0.3% · 21st percentile
  26. 2026-09-18 19:28 UTCEPSS rescoreEPSS 0.3% · 21st percentile
  27. 2026-09-16 14:08 UTCEPSS rescoreEPSS 0.3% · 21st percentile
  28. 2026-09-16 05:15 UTCEPSS rescoreEPSS 0.3% · 21st percentile
  29. 2026-09-14 05:22 UTCEG score recompute
  30. 2026-09-14 05:22 UTCGHSA enrichmentGHSA-hgjh-6wj8-gcgf · GitHub CVSS 6.1
  31. 2026-09-13 16:47 UTCEPSS rescoreEPSS 0.3% · 21st percentile
  32. 2026-09-12 23:36 UTCOSV refresh
  33. 2026-09-11 14:53 UTCEPSS rescoreEPSS 0.3% · 20th percentile
  34. 2026-09-10 09:35 UTCEPSS rescoreEPSS 0.3% · 20th percentile
  35. 2026-09-08 22:01 UTCEPSS rescoreEPSS 0.3% · 20th percentile
  36. 2026-09-07 16:01 UTCEPSS rescoreEPSS 0.3% · 20th percentile
  37. 2026-09-06 13:47 UTCEPSS rescoreEPSS 0.3% · 20th percentile
  38. 2026-09-04 05:06 UTCEPSS rescoreEPSS 0.3% · 20th percentile
  39. 2026-09-02 14:12 UTCEPSS rescoreEPSS 0.3% · 20th percentile
  40. 2026-09-01 13:54 UTCEPSS rescoreEPSS 0.3% · 20th percentile
  41. 2026-09-01 04:40 UTCEPSS rescoreEPSS 0.3% · 20th percentile
  42. 2026-08-30 19:17 UTCEPSS rescoreEPSS 0.3% · 20th percentile
  43. 2026-08-30 01:22 UTCEPSS rescoreEPSS 0.3% · 20th percentile
  44. 2026-08-28 21:41 UTCEPSS rescoreEPSS 0.3% · 20th percentile
  45. 2026-08-27 14:25 UTCEPSS rescoreEPSS 0.3% · 20th percentile
  46. 2026-08-26 14:46 UTCEPSS rescoreEPSS 0.3% · 20th percentile
  47. 2026-08-25 13:49 UTCEPSS rescoreEPSS 0.3% · 20th percentile
  48. 2026-08-25 03:28 UTCEG score recompute
  49. 2026-08-25 03:28 UTCGHSA enrichmentGHSA-hgjh-6wj8-gcgf · GitHub CVSS 6.1
  50. 2026-08-23 12:41 UTCEG score recompute
  51. 2026-08-23 12:41 UTCGHSA enrichmentGHSA-hgjh-6wj8-gcgf · GitHub CVSS 6.1
  52. 2026-08-23 00:19 UTCEPSS rescoreEPSS 0.2% · 7th percentile
  53. 2026-08-21 23:49 UTCEPSS rescoreEPSS 0.2% · 7th percentile
  54. 2026-08-21 14:35 UTCEG score recompute
  55. 2026-08-21 14:35 UTCGHSA enrichmentGHSA-hgjh-6wj8-gcgf · GitHub CVSS 6.1
  56. 2026-08-20 22:55 UTCEPSS rescoreEPSS 0.2% · 7th percentile
  57. 2026-08-20 09:56 UTCEG score recompute
  58. 2026-08-20 09:56 UTCGHSA enrichmentGHSA-hgjh-6wj8-gcgf · GitHub CVSS 6.1
  59. 2026-08-19 17:04 UTCEPSS rescoreEPSS 0.2% · 7th percentile
  60. 2026-08-18 13:48 UTCEPSS rescoreEPSS 0.2% · 7th percentile
  61. 2026-08-17 13:47 UTCEPSS rescoreEPSS 0.2% · 7th percentile
  62. 2026-08-16 16:05 UTCEG score recompute
  63. 2026-08-16 16:05 UTCGHSA enrichmentGHSA-hgjh-6wj8-gcgf · GitHub CVSS 6.1
  64. 2026-08-16 14:56 UTCEPSS rescoreEPSS 0.2% · 7th percentile
  65. 2026-08-16 02:14 UTCEPSS rescoreEPSS 0.2% · 7th percentile
  66. 2026-08-15 14:20 UTCEG score recompute
  67. 2026-08-15 14:20 UTCGHSA enrichmentGHSA-hgjh-6wj8-gcgf · GitHub CVSS 6.1
  68. 2026-08-15 01:30 UTCEPSS rescoreEPSS 0.2% · 7th percentile
  69. 2026-08-14 11:59 UTCEG score recompute
  70. 2026-08-14 11:59 UTCGHSA enrichmentGHSA-hgjh-6wj8-gcgf · GitHub CVSS 6.1
  71. 2026-08-13 22:00 UTCEPSS rescoreEPSS 0.2% · 7th percentile
  72. 2026-08-13 10:14 UTCEG score recompute
  73. 2026-08-13 10:14 UTCGHSA enrichmentGHSA-hgjh-6wj8-gcgf · GitHub CVSS 6.1
  74. 2026-08-12 13:51 UTCEPSS rescoreEPSS 0.2% · 7th percentile
  75. 2026-08-12 08:29 UTCEG score recompute

Frequently asked(5)

What is CVE-2026-50182?
CVE-2026-50182 is a medium-severity vulnerability; its CVE record was published on June 4, 2026. WWBN AVideo is an open source video platform. Versions prior to 29.0 contain an unauthenticated Reflected XSS vulnerability through AVideo YouTubeAPI Gallery Pagination. The $_GET['search'] query parameter is concatenated directly into the href attribute of two pagination links in…
When was the CVE record for CVE-2026-50182 published?
The CVE record for CVE-2026-50182 was published on June 4, 2026. That is the record's publication date; the vulnerability itself may have been made public earlier. EchelonGraph's copy of the record carries a last-modified date of October 24, 2026; the record at its source may have been updated since.
Is CVE-2026-50182 actively exploited?
CVE-2026-50182 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 0.2% probability of exploitation in the next 30 days (12th percentile of EPSS-scored CVEs).
What is the CVSS score of CVE-2026-50182?
CVE-2026-50182 has a CVSS base score of 6.1 (a secondary CVSS source that NVD displays; NVD's own analysis pending).
How do I remediate CVE-2026-50182?
No fix for CVE-2026-50182 is confirmed yet. Until one is published, restrict network exposure of the affected system or apply the vendor's mitigation — for example, keep it off the internet or limit it to trusted networks — and watch the vendor's advisory for the fix. The CVE record's description, written by its CNA (GitHub, Inc.), states the affected versions: "Versions prior to 29.0 contain an unauthenticated Reflected XSS vulnerability through AVideo YouTubeAPI Gallery Pagination." No release containing a fix is confirmed on record. The vendor advisories EchelonGraph has for CVE-2026-50182 are linked in the Vendor Advisories panel on this page.

Dependency Blast Radius

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