CVE-2021-22873
Medium
Description
Revive Adserver before 5.1.0 is vulnerable to open redirects via the `dest`, `oadest`, and/or `ct0` parameters of the lg.php and ck.php delivery scripts. Such open redirects had previously been available by design to allow third party ad servers to track such metrics when delivering ads. However, third party click tracking via redirects is not a viable option anymore, leading to such open redirect functionality being removed and reclassified as a vulnerability.
SeverityMedium
CVSS6.1
Exploit probability—
ProductRevive-adserver Revive Adserver
PublishedJan 26, 2021
First seenJan 26, 2021
Weakness typeCWE-601Open redirect
How to fix
Update
- revive-adserver revive_adserver5.1.0 or later
Affected products
| Product | Affected versions | Fixed in |
|---|---|---|
| revive-adserver revive_adserver | v < 5.1.0 | 5.1.0 |
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