Revive Adserver: Reflected cross-site scripting in conversion statistics
Summary
A reflected cross-site scripting (XSS) vulnerability in the conversion-statistics pages of Revive Adserver 6.0.8 and earlier allows an attacker to run JavaScript in the browser of a logged-in user. The attacker must persuade the victim to open a crafted URL. An incorrect ownership check validates the advertiser identifier instead of the website identifier, so unencoded input reaches the HTML output. A related output issue affects the hour parameter.
Affected
- Revive Adserver 6.0.8 and earlier
- Note: one threat database lists all versions as affected; the CVE description limits the issue to 6.0.8 and earlier.
Fixed in
- Revive Adserver 6.0.9 (validates the correct website identifier and normalises the hour parameter before formatting). Vendor confirmation not yet verified.
Workaround
- Unknown. No vendor-documented mitigation is available. Upgrading to 6.0.9 is the only source-backed remedy.
Exploitation
- Not known to be exploited in the wild, according to OffSeq.
- CISA KEV: no Revive Adserver entries found in third-party aggregators; check cisa.gov directly.
- Public proof of concept: none found in the reviewed sources.
Our recommendation
- Upgrade Revive Adserver to 6.0.9 after confirming the release on the vendor site.
- Until patched, restrict access to the admin interface to VPN or allowlisted IP addresses.
- Check whether the instance is reachable from the internet.
- Instruct administrators not to click unsolicited links while logged in to the admin interface.
- The same 6.0.9 release also addresses related issues (CVE-2026-108563, CVE-2026-108564), so one upgrade covers them.
Public exploits
PoC-in-GitHub, Metasploit and Exploit-DB list nothing for this CVE.
Research sources
- HackerOne report 3878649 hackerone.com
- OffSeq threat radar for CVE-2026-108558 radar.offseq.com
- ThreatINT CVE record CVE-2026-108558 cve.threatint.com
- Revive Adserver security page www.revive-adserver.com
- Previdian Revive Adserver vendor page previdian.com
Researched and written up in English and German by an AI (Claude by Anthropic) based on NVD, CISA, EPSS and the sources listed. The vendor information is authoritative. Researched on 11 Nov 2026, 19:28.
Original description (NVD)
A reflected cross-site scripting vulnerability in the conversion-statistics pages of Revive Adserver 6.0.8 and earlier allows an unauthenticated attacker to execute JavaScript in an authenticated user's browser by persuading them to visit a crafted URL. An incorrect ownership check validates the advertiser identifier instead of the supplied website identifier, allowing malicious website input to reach HTML output without appropriate encoding. A related output issue affects the hour parameter. The issue is fixed in Revive Adserver 6.0.9 by validating the correct website identifier and normalising the hour parameter before formatting.
NVD references (1)
Sources
The tracker combines official, freely usable data sources – updated continuously:
- NVD (NIST) – CVEs, rating (CVSS), affected products
- CISA KEV – vulnerabilities confirmed by CISA as actively exploited
- CISA Vulnrichment – CISA assessment (SSVC) in the official CVE record
- FIRST EPSS – probability of exploitation
- Microsoft MSRC – Patch Tuesday: vulnerabilities, severity, updates
- PoC-in-GitHub – public proof-of-concept repositories
- Metasploit (Rapid7) – modules of the Metasploit Framework
- Exploit-DB (OffSec) – archive of public exploits (links only)
- Patch days: official vendor pages (linked per vendor) (Vendor patch days)
This product uses data from the NVD API but is not endorsed or certified by the NVD. EPSS data © FIRST.org.
Affected? We can help.
We check whether your systems are affected, install updates and close the gap – continuously with the System Health Checker if you wish.