Authenticated off-site redirects via unchecked redirect parameter
Published Nov 28, 2022 · Updated Apr 23, 2025
Open redirect in the Paella authentication page in Opencast before 12.5 allows remote authenticated users to redirect browsers off-site. The auth.html script decodes the redirect query parameter and assigns it to window.location.href without verifying that its hostname matches the server. The attack requires an authenticated account and victim interaction; the off-site destination enables phishing under the trusted site's URL.
Summary
What happened
Open redirect in the Paella authentication page in Opencast before 12.5 allows remote authenticated users to redirect browsers off-site. The auth.html script decodes the redirect query parameter and assigns it to window.location.href without verifying that its hostname matches the server. The attack requires an authenticated account and victim interaction; the off-site destination enables phishing under the trusted site's URL.
The record
- CVE
- CVE-2022-41965
- Published
- Nov 28, 2022
- Updated
- Apr 23, 2025
- Vendor
- Opencast
- Product
- Opencast
- Classifications
- CWE-601, T1566.002
- Attack vector
- network
- Privileges
- authenticated
Timeline
How it unfolded
- Nov 28, 2022CVE publishedPublication date reported by the CVE source.
- Apr 23, 2025Record updatedLatest update available in the CVE record.
Exploitability
Present is not the same as exploitable
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Is a vulnerable build present?
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- Affected versionversion=< 12.5
What conditions does exploitation require?
What is affected?
Attacks
What attackers are doing with it
Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.
Weakness, pattern, technique
Public exploit references
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Technologies
Your stack
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Your stack
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