Skip to main content
CVE-2026-108562VulnerabilityPublished

maintenance-appendcode-check.php · Stored Cross-site Scripting Vulnerability

Source GCVE Database

0
Compare
Authoritative record:CVE-2026-108562· Medium 5.4

Not known to be exploited · CVSS 5.4 Medium · fixed in 6.0.9 : update Adserver when convenient.

Data as of 11 Nov 2026, 19:38 UTC

CVSS 3.0 base score
5.4Medium
How severe the flaw is on the 0–10 CVSS scale.

Thin evidence

One scorer or none
CVSS scores by source
CNA (hackerone)CVSS 3.05.4
Patch
Available – fixed in 6.0.9
CVSS:3.0/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N

Exploitation evidence

  1. Disclosed: evidence found.

    CVE published 11 Nov 2026

  2. Detectable: no evidence on record.

    No public nuclei template indexed

  3. Weaponized: no evidence on record.

    No public exploit code indexed in Metasploit or Exploit-DB

  4. Exploited in the wild: no evidence on record.

    Not in CISA KEV and no source reports exploitation

  5. Observed by OffSeq Mirage: no evidence on record.

    No attack traffic recorded by OffSeq Mirage sensors

A missing step is not evidence of safety. Sources: cve.org (opens in a new tab), the Metasploit, Exploit-DB and nuclei-templates index as of 11 Nov 2026.

What to do

Affected software

ProductAffectedFixed in
ReviveAdserverAffected
  • <=6.0.8
Fixed in–

AI-suggested

Upgrade Revive Adserver to version 6.0.9 or later, where the vulnerability is fixed by HTML-encoding tracker names in the maintenance results. No other mitigation is indicated or required.

Description

Revive Adserver versions 6.0.8 and earlier contain a stored cross-site scripting (XSS) vulnerability in the maintenance-appendcode-check.php script. This flaw allows an authenticated manager to inject malicious JavaScript by storing a crafted tracker name that appears in the maintenance results page. When an administrator views this page, the injected script executes in their browser due to improper HTML encoding. The vulnerability is addressed in version 6.0.9 by properly encoding tracker names in the maintenance output.

References

Community reviews

Loading reviews…