Medium severity6.1NVD Advisory· Published Jan 26, 2021· Updated Jun 17, 2026
CVE-2021-22873
CVE-2021-22873
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.
AI Insight
LLM-synthesized narrative grounded in this CVE's description and references.
Affected products
3cpe:2.3:a:revive-adserver:revive_adserver:*:*:*:*:*:*:*:*+ 1 more
- cpe:2.3:a:revive-adserver:revive_adserver:*:*:*:*:*:*:*:*range: <5.1.0
- (no CPE)range: <5.1.0
- Revive Adserver/Revive Adserverdescription
Patches
Vulnerability mechanics
References
5- hackerone.com/reports/1081406nvdExploitThird Party Advisory
- packetstormsecurity.com/files/161070/Revive-Adserver-5.0.5-Cross-Site-Scripting-Open-Redirect.htmlnvdThird Party AdvisoryVDB Entry
- seclists.org/fulldisclosure/2021/Jan/60nvdBroken LinkMailing ListThird Party Advisory
- github.com/revive-adserver/revive-adserver/issues/1068nvdIssue TrackingThird Party Advisory
- www.revive-adserver.com/security/revive-sa-2021-001/nvdVendor Advisory
News mentions
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