# CVE-2026-108561: CVE-2026-108561

Status: published. Published: 2026-11-11. Updated: 2026-11-11.

A stored cross-site scripting vulnerability in the report date-selection controls of Revive Adserver 6.0.8 and earlier allows an unauthenticated attacker to execute JavaScript in a victim's browser by persuading them to follow a crafted report URL and complete normal reauthentication. An attacker-controlled period_preset value can be saved in the victim's session and inserted into JavaScript without appropriate encoding. The payload can execute on the initial report view and subsequent report views using the stored defaults. The issue is fixed in Revive Adserver 6.0.9 by applying JSON encoding appropriate for the JavaScript context to date-selection values.

## Remediation

No remediation reported in collected sources

## Affected products and versions

- Revive / Adserver: ≥ 0; ≤ 6.0.8 (affected, semver). Source: CNA: hackerone

## Severity and prioritization

- CVSS 3.0: 6.1 (medium); CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N; source: CNA: hackerone

- CISA KEV: No listing in collected sources

- EPSS: Not available

- SSVC: Not available

- Weaknesses: CWE-79

## Exploit evidence

No exploit evidence in collected sources. This is not proof of no exploitation.

## References

- https://hackerone.com/reports/4116433 (CNA: hackerone)

## Provenance

- CNA: hackerone: https://www.cve.org/CVERecord?id=CVE-2026-108561; retrieved 2026-11-11; source updated 2026-11-11

Revision: c95a764e326aee8fc73f397add14b7da8c2985701cfb81ffab8e542a2cd18bb2

Canonical: https://y2.dev/cve/CVE-2026-108561

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Collected public records only. Check source status for coverage and freshness.