CVE-2026-21642

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Source
https://cve.org/CVERecord?id=CVE-2026-21642
Import Source
https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-21642.json
JSON Data
https://api.osv.dev/v1/vulns/CVE-2026-21642
Published
2026-01-20T20:48:48.079Z
Modified
2026-07-17T03:45:57.634033979Z
Severity
  • 6.1 (Medium) CVSS_V3 - CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N CVSS Calculator
Summary
[none]
Details

HackerOne community member Patrick Lang (7yr) has reported a reflected XSS vulnerability in the banner-acl.php and channel-acl.php scripts of Revive Adserver. An attacker can craft a specific URL that includes an HTML payload in a parameter. If a logged in administrator visits the URL, the HTML is sent to the browser and malicious scripts would be executed.

Database specific 
{
    "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/21xxx/CVE-2026-21642.json",
    "cna_assigner": "hackerone",
    "unresolved_ranges": [
        {
            "extracted_events": [
                {
                    "introduced": "6"
                },
                {
                    "last_affected": "6.0.4"
                }
            ],
            "source": "AFFECTED_FIELD"
        }
    ]
}
References

Affected packages

Git / github.com/revive-adserver/revive-adserver

Affected ranges

Type
GIT
Repo
https://github.com/revive-adserver/revive-adserver
Events
Introduced
0 Unknown introduced commit / All previous commits are affected
Last affected
37592f9d564b248f86b8230f5bdd53bbaa852f9e
Database specific 
{
    "extracted_events": [
        {
            "introduced": "0"
        },
        {
            "last_affected": "6.0.4"
        }
    ],
    "cpe": "cpe:2.3:a:aquaplatform:revive_adserver:*:*:*:*:*:*:*:*",
    "source": "CPE_RANGE"
}

Affected versions

v3.*
v3.0.0
v3.0.1
v3.0.2
v3.0.3
v3.1.0
v3.1.0-beta
v3.2.0
v3.2.0-beta
v3.2.1
v3.2.1-rc1
v4.*
v4.0.0
v4.0.0-rc1
v4.0.1
v4.0.2
v4.1.0
v4.1.0-rc1
v4.1.2
v4.1.3
v4.1.4
v4.2.0
v4.2.0-rc1
v4.2.1
v5.*
v5.0.0
v5.0.0-rc1
v5.0.1
v5.0.3
v5.0.4
v5.0.5
v5.1.0
v5.1.0-rc1
v5.1.1
v5.2.0
v5.2.1
v5.3.0
v5.3.0-rc1
v5.4.0
v5.4.0-rc1
v5.4.1
v6.*
v6.0.0
v6.0.1
v6.0.2
v6.0.3
v6.0.4

Database specific

source 
"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-21642.json"