Is CVE-2021-22871 actively exploited?

CVE-2021-22871 has no public evidence of in-the-wild exploitation as of 2024-11-21.

What is the CVSS score for CVE-2021-22871?

CVE-2021-22871 has a CVSS score of 4.8 (MEDIUM severity). Vector: CVSS:3.1/AV:N/AC:L/PR:H/UI:R/S:C/C:L/I:L/A:N.

How do I patch CVE-2021-22871?

Patch guidance is available from revive-adserver security advisories. CVEDatabase generates AI-assisted remediation guidance on demand for CVE-2021-22871.

Which products are affected by CVE-2021-22871?

1 product: revive-adserver revive adserver.

CVE-2021-22871 - remediation guidance & executive summary

Description

Revive Adserver before 5.1.0 permits any user with a manager account to store possibly malicious content in the URL website property, which is then displayed unsanitized in the affiliate-preview.php tag generation screen, leading to a persistent cross-site scripting (XSS) vulnerability.

CVSS Metrics

Vector: CVSS:3.1/AV:N/AC:L/PR:H/UI:R/S:C/C:L/I:L/A:N
Attack Vector: network
Complexity: low
Privileges: high
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: 1/26/2021
Last Modified: 11/21/2024
Source: NIST NVD
Note: Verify all details with official vendor sources before applying patches.

CVE-2021-22871

Description

CVSS Metrics

Metadata

Affected Products

Remediation Guidance

Executive Summary