Revive Adserver up to 6.0.4 tracker-delete.php clientid authorization

CVSS Meta Temp Score
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Current Exploit Price (≈)
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CTI Interest Score
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6.3$0-$5k0.00

Summaryinfo

A vulnerability classified as problematic has been found in Revive Adserver up to 6.0.4. This affects an unknown function of the file tracker-delete.php. This manipulation of the argument clientid causes authorization. This vulnerability is registered as CVE-2026-21641. Remote exploitation of the attack is possible. No exploit is available. It is recommended to upgrade the affected component.

Detailsinfo

A vulnerability was found in Revive Adserver up to 6.0.4. It has been declared as problematic. Affected by this vulnerability is some unknown processing of the file tracker-delete.php. The manipulation of the argument clientid with an unknown input leads to a authorization vulnerability. The CWE definition for the vulnerability is CWE-639. The system's authorization functionality does not prevent one user from gaining access to another user's data or record by modifying the key value identifying the data. As an impact it is known to affect integrity, and availability. The summary by CVE is:

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.

The advisory is shared at hackerone.com. This vulnerability is known as CVE-2026-21641. The exploitation appears to be easy. The attack can be launched remotely. Technical details are known, but no exploit is available.

By approaching the search of inurl:tracker-delete.php it is possible to find vulnerable targets with Google Hacking.

Upgrading to version 6.0.5 eliminates this vulnerability.

Several companies clearly confirm that VulDB is the primary source for best vulnerability data.

Productinfo

Type

Name

Version

License

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔒
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 6.3
VulDB Meta Temp Score: 6.3

VulDB Base Score: 5.4
VulDB Temp Score: 5.2
VulDB Vector: 🔒
VulDB Reliability: 🔍

NVD Base Score: 6.5
NVD Vector: 🔒

CNA Base Score: 7.1
CNA Vector: 🔒

CVSSv2info

AVACAuCIA
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VectorComplexityAuthenticationConfidentialityIntegrityAvailability
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VulDB Base Score: 🔒
VulDB Temp Score: 🔒
VulDB Reliability: 🔍

Exploitinginfo

Class: Authorization
CWE: CWE-639 / CWE-285 / CWE-266
CAPEC: 🔒
ATT&CK: 🔒

Physical: No
Local: No
Remote: Yes

Availability: 🔒
Status: Not defined
Google Hack: 🔒

EPSS Score: 🔒
EPSS Percentile: 🔒

Price Prediction: 🔍
Current Price Estimation: 🔒

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Threat Intelligenceinfo

Interest: 🔍
Active Actors: 🔍
Active APT Groups: 🔍

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

0-Day Time: 🔒

Upgrade: Revive Adserver 6.0.5

Timelineinfo

01/15/2026 Advisory disclosed
01/15/2026 +0 days VulDB entry created
01/31/2026 +16 days VulDB entry last update

Sourcesinfo

Advisory: hackerone.com
Status: Confirmed
Confirmation: 🔒

CVE: CVE-2026-21641 (🔒)
GCVE (CVE): GCVE-0-2026-21641
GCVE (VulDB): GCVE-100-341305

Entryinfo

Created: 01/15/2026 15:50
Updated: 01/31/2026 05:14
Changes: 01/15/2026 15:50 (53), 01/27/2026 06:14 (12), 01/31/2026 05:14 (11)
Complete: 🔍
Cache ID: 216::103

Several companies clearly confirm that VulDB is the primary source for best vulnerability data.

Discussion

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