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CVE-2021-22873 Details

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.

Metrics

CVSS 3.x Severity and Vector Strings:

NIST: [email protected]CVSS-B:6.1 MEDIUMVector:CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N

References to Advisories, Solutions, and Tools

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URL	Source(s)	Tag(s)
http://packetstormsecurity.com/files/161070/Revive-Adserver-5.0.5-Cross-Site-Scripting-Open-Redirect.html	CVE	Third Party AdvisoryVDB Entry
http://seclists.org/fulldisclosure/2021/Jan/60	CVE	Broken LinkMailing ListThird Party Advisory
https://github.com/revive-adserver/revive-adserver/issues/1068	CVE	Issue TrackingThird Party Advisory
https://hackerone.com/reports/1081406	CVE	ExploitThird Party Advisory
https://www.revive-adserver.com/security/revive-sa-2021-001/	CVE	Vendor Advisory
http://packetstormsecurity.com/files/161070/Revive-Adserver-5.0.5-Cross-Site-Scripting-Open-Redirect.html	[email protected]	Third Party AdvisoryVDB Entry
http://seclists.org/fulldisclosure/2021/Jan/60	[email protected]	Broken LinkMailing ListThird Party Advisory
https://github.com/revive-adserver/revive-adserver/issues/1068	[email protected]	Issue TrackingThird Party Advisory
https://hackerone.com/reports/1081406	[email protected]	ExploitThird Party Advisory
https://www.revive-adserver.com/security/revive-sa-2021-001/	[email protected]	Vendor Advisory

see all 10 references

Weakness Enumeration

CWE-ID	CWE Name	Source
CWE-601	URL Redirection to Untrusted Site ('Open Redirect')	[email protected]
CWE-601	URL Redirection to Untrusted Site ('Open Redirect')	[email protected]

Affected Products

Product	Versions
revive-adserver revive adserver	< 5.1.0
CPE cpe:2.3:a:revive-adserver:revive_adserver:::::::: Remediation No remediation found in references.

Change History

4 change records found show changes

Date	Action	Recorded By
Jun 17, 2026	CVE Modified	[email protected]
Nov 21, 2024	CVE Modified	CVE
May 14, 2024	CVE Modified	[email protected]
Feb 2, 2021	Initial Analysis	[email protected]