Vulnerability-Lookup

CVE-2026-33296 (GCVE-0-2026-33296)

Vulnerability from cvelistv5 – Published: 2026-03-22 17:03 – Updated: 2026-03-23 14:00

Title

AVideo has an Open Redirect via Unvalidated redirectUri in userLogin.php

Summary

WWBN AVideo is an open source video platform. Prior to version 26.0, WWBN/AVideo contains an open redirect vulnerability in the login flow where a user-supplied redirectUri parameter is reflected directly into a JavaScript `document.location` assignment without JavaScript-safe encoding. After a user completes the login popup flow, a timer callback executes the redirect using the unvalidated value, sending the victim to an attacker-controlled site. Version 26.0 fixes the issue.

Severity ?

2.1 (Low)


                        
                          CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:A/VC:L/VI:L/VA:N/SC:N/SI:N/SA:N

CWE

CWE-601 - URL Redirection to Untrusted Site ('Open Redirect')

Assigner

GitHub_M

References

URL

Tags

	https://github.com/WWBN/AVideo/security/advisorie…	x_refsource_CONFIRM
	https://github.com/WWBN/AVideo/commit/68d0fbb19e3…	x_refsource_MISC

Impacted products

	Vendor	Product	Version
	WWBN	AVideo	Affected: < 26.0

Show details on NVD website

JSON

To clipboard

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FKIE_CVE-2026-33296

Vulnerability from fkie_nvd - Published: 2026-03-22 17:17 - Updated: 2026-03-24 17:52

Severity ?

6.1 (Medium) - CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N

Summary

References

URL	Tags
security-advisories@github.com	https://github.com/WWBN/AVideo/commit/68d0fbb19e382fe62e6cc7bd48b51ffa1d9e310e	Patch
security-advisories@github.com	https://github.com/WWBN/AVideo/security/advisories/GHSA-hj5h-5623-gwhw	Exploit, Vendor Advisory
134c704f-9b21-4f2e-91b3-4a467353bcc0	https://github.com/WWBN/AVideo/security/advisories/GHSA-hj5h-5623-gwhw	Exploit, Vendor Advisory

Impacted products

	Vendor	Product	Version
	wwbn	avideo	*

JSON

To clipboard

{
  "configurations": [
    {
      "nodes": [
        {
          "cpeMatch": [
            {
              "criteria": "cpe:2.3:a:wwbn:avideo:*:*:*:*:*:*:*:*",
              "matchCriteriaId": "B468F0CE-E5E7-4607-BD15-B5763C47493E",
              "versionEndExcluding": "26.0",
              "vulnerable": true
            }
          ],
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          "operator": "OR"
        }
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  ],
  "cveTags": [],
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    {
      "lang": "en",
      "value": "WWBN AVideo is an open source video platform. Prior to version 26.0, WWBN/AVideo contains an open redirect vulnerability in the login flow where a user-supplied redirectUri parameter is reflected directly into a JavaScript `document.location` assignment without JavaScript-safe encoding. After a user completes the login popup flow, a timer callback executes the redirect using the unvalidated value, sending the victim to an attacker-controlled site. Version 26.0 fixes the issue."
    },
    {
      "lang": "es",
      "value": "WWBN AVideo es una plataforma de video de c\u00f3digo abierto. Antes de la versi\u00f3n 26.0, WWBN/AVideo contiene una vulnerabilidad de redirecci\u00f3n abierta en el flujo de inicio de sesi\u00f3n donde un par\u00e1metro redirectUri proporcionado por el usuario se refleja directamente en una asignaci\u00f3n de JavaScript \u0027document.location\u0027 sin codificaci\u00f3n segura para JavaScript. Despu\u00e9s de que un usuario completa el flujo de inicio de sesi\u00f3n emergente, una devoluci\u00f3n de llamada de temporizador ejecuta la redirecci\u00f3n utilizando el valor no validado, enviando a la v\u00edctima a un sitio controlado por el atacante. La versi\u00f3n 26.0 corrige el problema."
    }
  ],
  "id": "CVE-2026-33296",
  "lastModified": "2026-03-24T17:52:46.437",
  "metrics": {
    "cvssMetricV31": [
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          "confidentialityImpact": "LOW",
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          "privilegesRequired": "NONE",
          "scope": "CHANGED",
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}

GHSA-HJ5H-5623-GWHW

Vulnerability from github – Published: 2026-03-19 17:25 – Updated: 2026-03-25 18:34

Summary

AVideo has an Open Redirect via Unvalidated redirectUri in userLogin.php

Details

Summary

WWBN/AVideo contains an open redirect vulnerability in the login flow where a user-supplied redirectUri parameter is reflected directly into a JavaScript document.location assignment without JavaScript-safe encoding. After a user completes the login popup flow, a timer callback executes the redirect using the unvalidated value, sending the victim to an attacker-controlled site.

Details

In view/userLogin.php, the application accepts a redirectUri GET parameter, passes it through a function called isSafeRedirectURL(), and stores the result in $safeRedirectUri. This value is then embedded into an inline JavaScript block:

var logintimer = setInterval(function() {
    if (win.closed) {
        clearInterval(logintimer);
        document.location = "<?php print $safeRedirectUri; ?>";
    }
}, 1000);

The value is printed directly into a JavaScript string literal with no call to json_encode(), htmlspecialchars(), or any JavaScript-context escaping. Even if isSafeRedirectURL() is intended to filter dangerous values, protocol-relative URLs such as //evil.com satisfy many naive URL validation checks because they carry no explicit scheme, yet browsers will resolve them as https://evil.com when embedded in a navigation target. Additional bypass vectors include subdomain confusion of the form https://trusted.com.evil.com and path-prefix matching weaknesses. Because the reflected value lands inside a JavaScript string rather than an HTML attribute, HTML-level encoding would not prevent exploitation either. Once the popup window is closed, the setInterval callback fires every second, and the first time win.closed is truthy the victim's main page is redirected to the attacker's URL.

PoC

https://victim.com/view/userLogin.php?redirectUri=//evil.com

import requests

base = "https://victim.com/view/userLogin.php"
payload = "//evil.com"
r = requests.get(base, params={"redirectUri": payload})
assert payload in r.text, "Payload not reflected"
print("Reflected payload found in response")

Impact

An unauthenticated attacker can craft a login URL and distribute it to victims. After the victim interacts with the login popup and closes it, the main page is silently navigated to an attacker-controlled domain. This enables phishing attacks where the victim is presented with a credential-harvesting page that visually mimics the original site. All users of any AVideo installation are potentially affected because no authentication is required to trigger the redirect. The attack requires only that the victim follow the crafted link and complete or dismiss the popup, making it practical in targeted phishing campaigns.

Severity ?

2.1 (Low)


                  
                    CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:A/VC:L/VI:L/VA:N/SC:N/SI:N/SA:N

Show details on source website

JSON

To clipboard

{
  "affected": [
    {
      "package": {
        "ecosystem": "Packagist",
        "name": "wwbn/avideo"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "last_affected": "25.0"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    }
  ],
  "aliases": [
    "CVE-2026-33296"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-601"
    ],
    "github_reviewed": true,
    "github_reviewed_at": "2026-03-19T17:25:28Z",
    "nvd_published_at": "2026-03-22T17:17:09Z",
    "severity": "LOW"
  },
  "details": "### Summary\n\nWWBN/AVideo contains an open redirect vulnerability in the login flow where a user-supplied redirectUri parameter is reflected directly into a JavaScript `document.location` assignment without JavaScript-safe encoding. After a user completes the login popup flow, a timer callback executes the redirect using the unvalidated value, sending the victim to an attacker-controlled site.\n\n### Details\n\nIn `view/userLogin.php`, the application accepts a redirectUri GET parameter, passes it through a function called `isSafeRedirectURL()`, and stores the result in $safeRedirectUri. This value is then embedded into an inline JavaScript block:\n\n```php\nvar logintimer = setInterval(function() {\n    if (win.closed) {\n        clearInterval(logintimer);\n        document.location = \"\u003c?php print $safeRedirectUri; ?\u003e\";\n    }\n}, 1000);\n```\n\nThe value is printed directly into a JavaScript string literal with no call to `json_encode()`, `htmlspecialchars()`, or any JavaScript-context escaping. Even if `isSafeRedirectURL()` is intended to filter dangerous values, protocol-relative URLs such as `//evil.com` satisfy many naive URL validation checks because they carry no explicit scheme, yet browsers will resolve them as `https://evil.com` when embedded in a navigation target. Additional bypass vectors include subdomain confusion of the form `https://trusted.com.evil.com` and path-prefix matching weaknesses. Because the reflected value lands inside a JavaScript string rather than an HTML attribute, HTML-level encoding would not prevent exploitation either. Once the popup window is closed, the setInterval callback fires every second, and the first time `win.closed` is truthy the victim\u0027s main page is redirected to the attacker\u0027s URL.\n\n### PoC\n\n```\nhttps://victim.com/view/userLogin.php?redirectUri=//evil.com\n```\n\n```python\nimport requests\n\nbase = \"https://victim.com/view/userLogin.php\"\npayload = \"//evil.com\"\nr = requests.get(base, params={\"redirectUri\": payload})\nassert payload in r.text, \"Payload not reflected\"\nprint(\"Reflected payload found in response\")\n```\n\n### Impact\n\nAn unauthenticated attacker can craft a login URL and distribute it to victims. After the victim interacts with the login popup and closes it, the main page is silently navigated to an attacker-controlled domain. This enables phishing attacks where the victim is presented with a credential-harvesting page that visually mimics the original site. All users of any AVideo installation are potentially affected because no authentication is required to trigger the redirect. The attack requires only that the victim follow the crafted link and complete or dismiss the popup, making it practical in targeted phishing campaigns.",
  "id": "GHSA-hj5h-5623-gwhw",
  "modified": "2026-03-25T18:34:36Z",
  "published": "2026-03-19T17:25:28Z",
  "references": [
    {
      "type": "WEB",
      "url": "https://github.com/WWBN/AVideo/security/advisories/GHSA-hj5h-5623-gwhw"
    },
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-33296"
    },
    {
      "type": "WEB",
      "url": "https://github.com/WWBN/AVideo/commit/68d0fbb19e382fe62e6cc7bd48b51ffa1d9e310e"
    },
    {
      "type": "PACKAGE",
      "url": "https://github.com/WWBN/AVideo"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:A/VC:L/VI:L/VA:N/SC:N/SI:N/SA:N",
      "type": "CVSS_V4"
    }
  ],
  "summary": "AVideo has an Open Redirect via Unvalidated redirectUri in userLogin.php"
}

Sightings

Author	Source	Type	Date

Nomenclature

Seen: The vulnerability was mentioned, discussed, or observed by the user.
Confirmed: The vulnerability has been validated from an analyst's perspective.
Published Proof of Concept: A public proof of concept is available for this vulnerability.
Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
Not confirmed: The user expressed doubt about the validity of the vulnerability.
Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.

Detection rules are retrieved from Rulezet.

Action not permitted

CVE-2026-33296 (GCVE-0-2026-33296)

FKIE_CVE-2026-33296

GHSA-HJ5H-5623-GWHW

Summary

Details

PoC

Impact

Tags

Sightings

Nomenclature