// For flags

CVE-2021-22873

Revive Adserver 5.0.5 Cross Site Scripting / Open Redirect

Severity Score

6.1
*CVSS v3.1

Exploit Likelihood

*EPSS

Affected Versions

*CPE

Public Exploits

2
*Multiple Sources

Exploited in Wild

-
*KEV

Decision

-
*SSVC
Descriptions

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.

Revive Adserver versiones anteriores a 5.1.0 es vulnerable a redireccionamientos abiertos por medio de los parámetros "dest","oadest" y/o "ct0" de los scripts de entrega de los archivos lg.php y ck.php. Estos redireccionamientos abiertos habían estado disponibles anteriormente por diseño para permitir a unos servidores de anuncios de terceros rastrear tales métricas al entregar anuncios. Sin embargo, el seguimiento de clics de terceros por medio de los redireccionamientos ya no es una opción viable, conllevando a que dicha funcionalidad de redireccionamiento abierto sea eliminada y reclasificada como una vulnerabilidad

Revive Adserver versions 5.0.5 and below suffer from persistent and reflective cross site scripting and open redirection vulnerabilities.

*Credits: N/A
CVSS Scores
Attack Vector
Network
Attack Complexity
Low
Privileges Required
None
User Interaction
Required
Scope
Changed
Confidentiality
Low
Integrity
Low
Availability
None
Attack Vector
Network
Attack Complexity
Medium
Authentication
None
Confidentiality
Partial
Integrity
Partial
Availability
None
* Common Vulnerability Scoring System
SSVC
  • Decision:-
Exploitation
-
Automatable
-
Tech. Impact
-
* Organization's Worst-case Scenario
Timeline
  • 2021-01-06 CVE Reserved
  • 2021-01-21 CVE Published
  • 2023-08-09 First Exploit
  • 2024-05-26 EPSS Updated
  • 2024-08-03 CVE Updated
  • ---------- Exploited in Wild
  • ---------- KEV Due Date
CWE
  • CWE-601: URL Redirection to Untrusted Site ('Open Redirect')
CAPEC
Affected Vendors, Products, and Versions
Vendor Product Version Other Status
Vendor Product Version Other Status <-- --> Vendor Product Version Other Status
Revive-adserver
Search vendor "Revive-adserver"
Revive Adserver
Search vendor "Revive-adserver" for product "Revive Adserver"
< 5.1.0
Search vendor "Revive-adserver" for product "Revive Adserver" and version " < 5.1.0"
-
Affected