Is CVE-2026-50740 exploited in the wild?

No. Junglewise Threat Intelligence has no report of CVE-2026-50740 being exploited in the wild.

How severe is CVE-2026-50740?

Medium severity, with a CVSS score of 6.1, published 26 June 2026.

Which products and versions are affected?

Revive-Adserver Adserver <= 6.0.7.

Is there a fix for CVE-2026-50740?

No fixed version is recorded yet. Check the vendor's advisory in the references below. If you run it, Junglewise drafts a mitigation that fits your setup and applies it once you approve, with senior security engineers behind it.

How is CVE-2026-50740 attacked?

It is attacked over the network, in a web application.

Am I affected by CVE-2026-50740?

Check whether you run Revive-Adserver Adserver at an affected version. Junglewise does that check for you around the clock: connect your code, cloud and domains, and it matches new vulnerabilities like this one against what you actually run and tells you when one reaches you.

CVE-2026-50740: Revive Adserver reflected XSS in zone-include.php

Q: Is there a fix for CVE-2026-50740?

No fixed version is recorded yet. Check the vendor's advisory in the references below. If you run it, Junglewise drafts a mitigation that fits your setup and applies it once you approve, with senior security engineers behind it.

Q: How is CVE-2026-50740 attacked?

It is attacked over the network, in a web application.

Q: Am I affected by CVE-2026-50740?

Check whether you run Revive-Adserver Adserver at an affected version. Junglewise does that check for you around the clock: connect your code, cloud and domains, and it matches new vulnerabilities like this one against what you actually run and tells you when one reaches you.

CVE-2026-50740 · Severity: medium · CVSS 6.1 · Published 2026-06-26

Revive Adserver, a popular open-source platform for managing digital advertisements, contains a security flaw in its ad delivery scripts. An attacker can trick a user into clicking a malicious link, allowing the attacker to run unauthorized scripts in the user's browser. This could lead to the theft of login sessions or the unauthorized modification of web content seen by the user.

Technologies: Revive-Adserver Adserver. Vendors: Revive-Adserver.

Quick answers

Is CVE-2026-50740 exploited in the wild?: No. Junglewise Threat Intelligence has no report of CVE-2026-50740 being exploited in the wild.
How severe is CVE-2026-50740?: Medium severity, with a CVSS score of 6.1, published 26 June 2026.
Which products and versions are affected?: Revive-Adserver Adserver <= 6.0.7.
Is there a fix for CVE-2026-50740?: No fixed version is recorded yet. Check the vendor's advisory in the references below. If you run it, Junglewise drafts a mitigation that fits your setup and applies it once you approve, with senior security engineers behind it.
How is CVE-2026-50740 attacked?: It is attacked over the network, in a web application.
Am I affected by CVE-2026-50740?: Check whether you run Revive-Adserver Adserver at an affected version. Junglewise does that check for you around the clock: connect your code, cloud and domains, and it matches new vulnerabilities like this one against what you actually run and tells you when one reaches you.

Technical details

A reflected cross-site scripting (XSS) vulnerability exists in Revive Adserver versions 6.0.7 and earlier. The flaw is located within the 'zone-include.php' script, which fails to properly sanitize user-supplied input provided via the 'refresh' parameter of the iFrame invocation tag. An unauthenticated remote attacker can exploit this by inducing a user to visit a specially crafted URL. Successful exploitation allows the execution of arbitrary JavaScript in the context of the victim's browser session, potentially leading to session hijacking or unauthorized actions on behalf of the user.

Affected products

Revive Adserver <= 6.0.7

Timeline

2026-06-26: disclosed: NVD publication date

References

https://hackerone.com/reports/3780806

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