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TI-2026-26063 Aliases CVE-2026-33683GHSA-ghx5-7jjg-q2j7

AVideo vulnerable to Stored XSS via html_entity_decode() Reversing xss_esc() Sanitization in Channel About Field

Priority MEDIUM 58CWE-79Published · Updated

Key facts

Attack vector
Network
Privileges required
Low
User interaction
Required
Attack complexity
Low
Impact type
Cross-site scripting
Confidentiality · integrity · availability
Low · Low · None
Fix status
No fix listed

Attack profile from CVSS 3.1 · CNA. Fix status from CNA and GitHub. Impact type from CWE-79.

Summary

WWBN AVideo is an open source video platform. In versions up to and including 26.0, a sanitization order-of-operations flaw in the user profile "about" field allows any registered user to inject arbitrary JavaScript that executes when other users visit their channel page. The `xss_esc()` function entity-encodes input before `strip_specific_tags()` can match dangerous HTML tags, and `html_entity_decode()` on output reverses the encoding, restoring the raw malicious HTML. Commit 7cfdc380dae1e56bbb5de581470d9e9957445df0 contains a patch.

Why it matters now

Exploitation Proof of concept CISA SSVC · not in CISA KEV
EPSS 0.0018 7th percentileScored 2026-11-07
Public exploit Yes 1 exploit referenceTagged by NVD
Fix No fix listed No fixed version in the sources yet

SSVC decision points

CISA ADP · SSVC 2.0.3

Exploitation
Poc
Automatable
No
Technical impact
Partial

The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.

Affected products

VendorProductAffected versionsFixed inStatusSource
WWBNAVideoup to 26.0—No fix listedCNA
—wwbn/avideo (Packagist)up to 26.0—No fix listedGHSA-ghx5-7jjg-q2j7
  • AVideo VendorWWBN Affected up to 26.0 Fixed in — No fix listed CNA
  • wwbn/avideo (Packagist) Vendor— Affected up to 26.0 Fixed in — No fix listed GHSA-ghx5-7jjg-q2j7

CPE configurations NVD · 1

CPEVersionsRoleVendor
cpe:2.3:a:wwbn:avideo:*:*:*:*:*:*:*:*up to 26.0VulnerableWWBN
  • cpe:2.3:a:wwbn:avideo:*:*:*:*:*:*:*:* Versions up to 26.0 Vulnerable ·WWBN

Remediation

No fixed version listed by the sources yet.

Timeline

  1. 2026-10-02 Threatist record created from CVE-2026-33683
  2. 2026-10-03 Alias added: GHSA-ghx5-7jjg-q2j7

References

Exploit 1

Patch 1

Advisory 1

Other 1

  • TI-2026-29567 Code injection in WWBN AVideo CVSS 3.1CRITICAL 10.0
  • TI-2026-26095 AVideo Allows Unauthenticated Live Stream Control via Token Verification URL Override in control.json.php CVSS 3.1CRITICAL 9.4
  • TI-2026-25874 Improper access control in WWBN AVideo CVSS 3.1CRITICAL 10.0
  • TI-2026-25758 AVideo has an Unauthenticated SQL Injection via `doNotShowCats` Parameter (Backslash Escape Bypass) CVSS 3.1CRITICAL 9.8
  • TI-2024-20951 An issue in WWBN AVideo v.12.4 through v.14.2 allows a remote attacker to execute… CVSS 3.1CRITICAL 9.8
  • TI-2023-10706 OS injection vulnerability in World Wide Broadcast Network AVideo version before 12.4… CVSS 3.1CRITICAL 9.8
See all 189 →

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences