PatchTheCVECVE-2026-50742: A stored XSS vulnerabilities exists in the `maintenance-acl-check.php` and `maintenance-banners-check.php` too
CVE-2026-50742 is a medium-severity flaw (CVSS 5.4) affecting revive adserver. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.
A stored XSS vulnerabilities exists in the `maintenance-acl-check.php` and `maintenance-banners-check.php` tools of Revive Adserver 6.0.7. The issue was caused by entity names being displayed without proper escaping when inconsistencies were detected. Whether the XSS payload is executed when an administrator uses the affected maintenance tools is not entirely under the attacker's control.
Why this priority
- No elevated risk signals yet
A fixed release or distro patch exists.
Risk facts
| CVSS score | 5.4 (Medium) |
| Attack vector | Network (remote) |
| Attack complexity | Low |
| Privileges needed | Low |
| User interaction | Required |
| EPSS exploit chance | 0.3% (top 73%) |
| CISA exploited list | No |
| Weakness | CWE-79 |
| Published | 2026-06-26 |
| Last modified | 2026-10-25 |
Last updated 2026-10-25 · Sources: CVE Program, NVD, CISA KEV, EPSS and vendor advisories · How we score
Am I affected?
Timeline
- Published CVE record published
- Updated Record last modified
Scores and fixes here are computed automatically from those and other public sources. Confirm with the vendor advisory before changing production systems.
Quick answers
How do I fix CVE-2026-50742?
revive adserver: upgrade to 6.0.8. Exact commands for each OS are on this page.
Is CVE-2026-50742 being exploited?
CVE-2026-50742 is not on the CISA Known Exploited Vulnerabilities list at the time of the last update. Check again, as this can change.
What does CVE-2026-50742 affect?
CVE-2026-50742 affects revive adserver. Severity is medium (CVSS 5.4). A stored XSS vulnerabilities exists in the `maintenance-acl-check.php` and `maintenance-banners-check.php` tools of Revive Adserver 6.0.7. The issue was caused by entity names being displayed without proper escaping when inconsistencies wer
How urgent is CVE-2026-50742?
Priority 26/100. No elevated risk signals yet.
Software pages
Related CVEs
- CVE-2026-50741 HIGH 8.8 UPGRADE Bypass to the fix for CVE-2026-34916
- CVE-2026-50745 MEDIUM 6.1 UPGRADE A missing sanitisation vulnerability exists with user input in the stats-video.php script
- CVE-2026-50740 MEDIUM 5.4 UPGRADE A missing sanitisation vulnerability of user input in the zone-include.php script exists in Revive Adserver 6.
- CVE-2026-50739 MEDIUM 4.3 UPGRADE A bypass for CVE‑2026‑34913 exists with proper ownership validation that had not been applied to the reverse o
- CVE-2026-50744 MEDIUM 4.3 UPGRADE A bypass to the admin‑only restriction of the XML‑RPC API in Revive Adserver 6.0.7