CVE-2026-50744
MediumCVSS 4.3Exploitation Probability (EPSS)
Low risk7th percentile - higher than 7% of all known CVEs
Summary
A bypass to the admin-only restriction of the XML-RPC API in Revive Adserver 6.0.7. The API response for the ox.login method returned a session ID cookie in the HTTP headers, and although the method correctly returned an error, the associated session was not invalidated, allowing the leaked session ID to be used for subsequent unrestricted API calls.
Risk Assessment
An attacker can gain unauthorized access to administrative functions of the ad server, potentially leading to data theft, campaign manipulation, or full server compromise.
Recommendation
Immediately upgrade Revive Adserver to a version that fixes session invalidation after login failure and removes the session cookie leak in the API response.
Other vulnerabilities in Revive Adserver
See all- CVE-2026-44959High
A missing validation of user input exists when saving delivery limitations in Revive Adserver 6.0.6 and earlier. A low-privileged user could add an unexpected component parameter and inject malicious PHP code into the compiledlimitations field, which would then be executed during banner delivery.
- CVE-2026-44958Medium
The vulnerability allows advertiser-level users to activate or deactivate a banner in Revive Adserver 6.0.6 and earlier, even when such permissions were not granted. The banner-edit.php script allowed the banner status to be overwritten solely based on banner edit permissions.
- CVE-2026-34916High
A missing validation of user input when saving delivery limitations in Revive Adserver 6.0.6 and earlier could allow a low-privileged user to inject malicious PHP code into the compiledlimitations field on the database, resulting in its execution during banner delivery.
- CVE-2016-9456High
Revive Adserver before 3.2.3 suffers from Cross-Site Request Forgery (CSRF). The Revive Adserver team conducted a security audit of the admin interface scripts to identify and fix other potential CSRF vulnerabilities.
- CVE-2016-9455High
Revive Adserver before 3.2.3 suffers from Cross-Site Request Forgery (CSRF). Several scripts in Revive Adserver's user interface are vulnerable to these attacks.
- CVE-2016-9127High
Revive Adserver before 3.2.3 suffers from Cross-Site Request Forgery (CSRF) in the password recovery form. This vulnerability could be exploited to send a large number of password recovery emails to registered users.
- CVE-2015-7372High
Directory traversal vulnerability in delivery-dev/al.php in Revive Adserver before 3.2.2 allows remote attackers to include and execute arbitrary local files via a .. (dot dot) in the layerstyle parameter.
- CVE-2015-7369High
The default Flash cross-domain policy (crossdomain.xml) in Revive Adserver before version 3.2.2 does not restrict access from other domains, allowing remote attackers to conduct cross-domain attacks via unspecified vectors.
- CVE-2015-7367High
Revive Adserver before 3.2.2 allows remote attackers to perform unspecified actions by leveraging an unexpired session after the user has been deleted or unlinked.
- CVE-2016-9470Critical
Revive Adserver versions before 3.2.5 and 4.0.0 are vulnerable to Reflected File Download (RFD) attacks. Attackers can exploit the vulnerability in `www/delivery/asyncspc.php` to remotely download a file onto the victim's machine.
Original NVD description (English source)
A bypass to the admin‑only restriction of the XML‑RPC API in Revive Adserver 6.0.7. The API response for the ox.login method returned a session ID cookie in the HTTP headers, and although the method correctly returned an error, the associated session was not invalidated. As a result, the leaked session ID could be used to perform subsequent API calls without restrictions.