A reflected Cross-Site Scripting (XSS) vulnerability has been identified in Revive Adserver version 5.5.2. 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 execute injected JavaScript code in the context of the victim's browser. The session cookie cannot be accessed, but a number of other operations could be performed.
The vulnerability is present in the admin-search.php file and can be exploited via the compact parameter.
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{
"dataType": "CVE_RECORD",
"dataVersion": "5.2",
"cveMetadata": {
"cveId": "CVE-2025-27208",
"assignerOrgId": "36234546-b8fa-4601-9d6f-f4e334aa8ea1",
"assignerShortName": "hackerone",
"dateUpdated": "2025-10-31T14:49:14.006Z",
"dateReserved": "2025-02-20T01:00:01.798Z",
"datePublished": "2025-10-30T23:32:11.103Z",
"state": "PUBLISHED"
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"lang": "en",
"value": "A reflected Cross-Site Scripting (XSS) vulnerability has been identified in Revive Adserver version 5.5.2. 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 execute injected JavaScript code in the context of the victim's browser. The session cookie cannot be accessed, but a number of other operations could be performed.\r\n\r\nThe vulnerability is present in the admin-search.php file and can be exploited via the compact parameter."
}
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"affected": [
{
"vendor": "Revive",
"product": "Revive Adserver",
"versions": [
{
"version": "5.5.2",
"status": "affected",
"versionType": "semver",
"lessThanOrEqual": "5.5.2"
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{
"version": "6.0.0",
"status": "unaffected",
"versionType": "semver",
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"references": [
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"url": "https://hackerone.com/reports/3091390"
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"cvssV3_0": {
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"vectorString": "CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:L/A:L",
"baseScore": 6.3,
"baseSeverity": "MEDIUM"
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"adp": [
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"providerMetadata": {
"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
"shortName": "CISA-ADP",
"dateUpdated": "2025-10-31T14:49:14.006Z"
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"title": "CISA ADP Vulnrichment",
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