Vulnerability Details : CVE-2021-22872
Revive Adserver before 5.1.0 is vulnerable to a reflected cross-site scripting (XSS) vulnerability via the publicly accessible afr.php delivery script. While this issue was previously addressed in modern browsers as CVE-2020-8115, some older browsers (e.g., IE10) that do not automatically URL encode parameters were still vulnerable.
Vulnerability category: Cross site scripting (XSS)
Products affected by CVE-2021-22872
- cpe:2.3:a:revive-adserver:revive_adserver:*:*:*:*:*:*:*:*
Exploit prediction scoring system (EPSS) score for CVE-2021-22872
0.63%
Probability of exploitation activity in the next 30 days
EPSS Score History
~ 79 %
Percentile, the proportion of vulnerabilities that are scored at or less
CVSS scores for CVE-2021-22872
| Base Score | Base Severity | CVSS Vector | Exploitability Score | Impact Score | Score Source | First Seen |
|---|---|---|---|---|---|---|
|
4.3
|
MEDIUM | AV:N/AC:M/Au:N/C:N/I:P/A:N |
8.6
|
2.9
|
NIST | |
|
6.1
|
MEDIUM | CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N |
2.8
|
2.7
|
NIST |
CWE ids for CVE-2021-22872
-
The product does not neutralize or incorrectly neutralizes user-controllable input before it is placed in output that is used as a web page that is served to other users.Assigned by:
- nvd@nist.gov (Primary)
- support@hackerone.com (Secondary)
References for CVE-2021-22872
-
http://packetstormsecurity.com/files/161070/Revive-Adserver-5.0.5-Cross-Site-Scripting-Open-Redirect.html
Revive Adserver 5.0.5 Cross Site Scripting / Open Redirect ≈ Packet StormThird Party Advisory;VDB Entry
-
https://hackerone.com/reports/986365
#986365 Reflected XSS on /www/delivery/afr.php (bypass of report #775693)Exploit;Third Party Advisory
-
https://github.com/revive-adserver/revive-adserver/commit/1dbcf7d50
Regenerated delivery scripts · revive-adserver/revive-adserver@1dbcf7d · GitHubPatch;Third Party Advisory
-
https://www.revive-adserver.com/security/revive-sa-2021-001/
Revive Adserver Security Advisory SA-2021-001Vendor Advisory
-
http://seclists.org/fulldisclosure/2021/Jan/60
Full Disclosure: [REVIVE-SA-2021-001] Revive Adserver VulnerabilitiesBroken Link;Mailing List;Third Party Advisory
-
https://github.com/revive-adserver/revive-adserver/commit/00fdb8d0e
Fix h1 report 986365 · revive-adserver/revive-adserver@00fdb8d · GitHubPatch;Third Party Advisory
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