CVE-2026-42286: Emlog CSRF in admin functions

CVE-2026-42286 · Severity: info · CVSS 8.4 · Published 2026-05-08

Emlog, an open-source website building system, is vulnerable to an attack that can trick administrators into performing unintended actions. By visiting a malicious website while logged into the Emlog dashboard, an administrator could unknowingly change system settings, register unauthorized keys, or activate malicious plugins. This could lead to a full takeover of the website or unauthorized access to sensitive configuration data.

Technologies: Emlog Pro. Vendors: Emlog.

Quick answers

Is CVE-2026-42286 exploited in the wild?
No. Junglewise Threat Intelligence has no report of CVE-2026-42286 being exploited in the wild.
How severe is CVE-2026-42286?
Informational severity, with a CVSS score of 8.4, published 8 May 2026.
Which products and versions are affected?
Emlog Pro < 2.6.11.
Is there a fix for CVE-2026-42286?
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-2026-42286 attacked?
It is attacked over the network, in a web application.
Am I affected by CVE-2026-42286?
Check whether you run Emlog Pro 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 Cross-Site Request Forgery (CSRF) vulnerability exists in Emlog's administrative interface due to a lack of anti-CSRF token validation in critical components, specifically /admin/auth.php and /admin/plugin.php. An attacker can exploit this by hosting a malicious page that sends unauthorized POST or GET requests to a victim's Emlog instance. If an authenticated administrator visits the malicious page, the attacker can execute actions with the administrator's privileges, including system registration (modifying 'emkey'), plugin activation/deactivation, and plugin deletion. This can lead to remote code execution if a malicious plugin is activated or significant configuration tampering. The issue is addressed in version 2.6.11 by implementing token generation and validation in the LoginAuth class.

Affected products

  • Emlog Emlog < 2.6.11

Timeline

  • 2026-04-22: advisory: GitHub Security Advisory published
  • 2026-05-08: disclosed: CVE published to NVD

References

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