Is CVE-2021-22889 actively exploited?

CVE-2021-22889 has no public evidence of in-the-wild exploitation as of 2024-11-21.

What is the CVSS score for CVE-2021-22889?

CVE-2021-22889 has a CVSS score of 6.1 (MEDIUM severity). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N.

How do I patch CVE-2021-22889?

Patch guidance is available from revive-adserver security advisories. CVEDatabase generates AI-assisted remediation guidance on demand for CVE-2021-22889.

Which products are affected by CVE-2021-22889?

1 product: revive-adserver revive adserver.

CVE-2021-22889 - remediation guidance & executive summary

Description

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.

CVSS Metrics

Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N
Attack Vector: network
Complexity: low
Privileges: none
User Action: required
Scope: changed
Confidentiality: low
Integrity: low
Availability: none
Weaknesses: CWE-79 · Cross-site Scripting (XSS)CWE-79 · Cross-site Scripting (XSS)

Metadata

Primary Vendor: REVIVE-ADSERVER
Published: 3/25/2021
Last Modified: 11/21/2024
Source: NIST NVD
Note: Verify all details with official vendor sources before applying patches.

CVE-2021-22889

Description

CVSS Metrics

Metadata

Affected Products

Remediation Guidance

Executive Summary