Vulnerability · Published Jan 20, 2026 · Assigned by hackerone
CVE-2026-21641
High 7.1
In plain English
A high-severity security flaw in Revive Adserver from Revive. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 0.3% (higher than 20% of all known vulnerabilities).
Severity (CVSS 3.0)7.1High
Exploit odds (30 days)0.3%top 80.3% of all CVEs
Exploited in the wildNo reportsCISA SSVC: none
Attack toolingNoneno public tooling known
Official description
HackerOne community member Jad Ghamloush (0xjad) has reported an authorization bypass vulnerability in the `tracker-delete.php` script of Revive Adserver. Users with permissions to delete trackers are mistakenly allowed to delete trackers owned by other accounts.
Affected products (as reported)
| Vendor | Product | Versions |
|---|---|---|
| Revive | Revive Adserver | 6 – through 6.0.4 |
Weakness: CWE-285 · Vector: CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:L