CVE-2021-22889

moderate-risk
Published 2021-03-25

Revive Adserver before v5.2.0 is vulnerable to a reflected XSS vulnerability in the `statsBreakdown` parameter of stats.php (and possibly other scripts) due to single quotes not being escaped. An attacker could trick a user with access to the user interface of a Revive Adserver instance into clicking on a specifically crafted URL and pressing a certain key combination to execute injected JavaScript code.

Do I need to act?

-
0.90% chance of exploitation
EPSS score — low exploit probability
-
Not on CISA KEV list
No confirmed active exploitation reported to CISA
?
Patch status unknown
Check vendor advisories for fix availability and mitigation guidance
6
CVSS 6.1/10 Medium
NETWORK / LOW complexity

Affected Products (1)

Affected Vendors

Revive-Adserver

References (6)

Patch https://github.com/revive-adserver/revive-adserver/commit/2f868414
Exploit https://hackerone.com/reports/1097217
Vendor Advisory https://www.revive-adserver.com/security/revive-sa-2021-003/
Patch https://github.com/revive-adserver/revive-adserver/commit/2f868414
Exploit https://hackerone.com/reports/1097217
Vendor Advisory https://www.revive-adserver.com/security/revive-sa-2021-003/
31
/ 100
moderate-risk
Severity 23/34 · High
Exploitability 3/34 · Minimal
Exposure 5/34 · Minimal