CVE-2021-22889

EPSS 36.3%CWE-79

Vexday Risk Score

15Low

SSVC decision (CISA)

Track

No exploitation signal → monitor

CVSS —EPSS 36.3%KEV nãoPoC —Nuclei —Metasploit —Patch —

Lifecycle

25 Mar 2021Published on NVD

Recommendation: Monitor — no exploitation signal at the moment.

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.

Affected products

n/a · https://github.com/revive-adserver/revive-adserver

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References

https://github.com/revive-adserver/revive-adserver/commit/2f868414 https://hackerone.com/reports/1097217 https://www.revive-adserver.com/security/revive-sa-2021-003/