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PatchSiren cyber security CVE debrief

CVE-2026-27741 Bludit CVE debrief

CVE-2026-27741 is a cross-site request forgery vulnerability in Bludit 3.16.1. The application lacks anti-CSRF tokens for administrative actions, allowing an attacker to induce an authenticated administrator to visit a malicious page that silently submits crafted requests, resulting in unauthorized plugin uninstallation or theme installation. This vulnerability can lead to loss of functionality, execution of untrusted code via malicious themes, and compromise of system integrity. The vulnerability was reported by a security researcher and is related to the lack of anti-CSRF tokens in Bludit 3.16.1.

Vendor
Bludit
Product
Unknown
CVSS
MEDIUM 5.1
CISA KEV
Not listed in stored evidence
Original CVE published
2026-02-23
Original CVE updated
2026-07-14
Advisory published
2026-02-23
Advisory updated
2026-07-14

Who should care

Administrators and users of Bludit version 3.16.1 should be aware of this vulnerability and take necessary actions to mitigate it. They should review the system inventory, check for suspicious activity, and implement compensating controls. Additionally, they should restrict access to administrative endpoints and regularly review and update the system's inventory.

Technical summary

The vulnerability exists in the /admin/uninstall-plugin/ and /admin/install-theme/ endpoints of Bludit 3.16.1. An attacker can exploit this vulnerability by inducing an authenticated administrator to visit a malicious page, leading to unauthorized plugin uninstallation or theme installation, potentially resulting in loss of functionality, execution of untrusted code via malicious themes, and compromise of system integrity. The vulnerability is caused by the lack of anti-CSRF tokens or other request origin validation mechanisms for these administrative actions.

Defensive priority

Medium

Recommended defensive actions

  • Apply the latest security patches or updates for Bludit
  • Implement anti-CSRF tokens or other request origin validation mechanisms for administrative actions
  • Monitor for suspicious activity and implement compensating controls
  • Restrict access to administrative endpoints
  • Regularly review and update the system's inventory
  • Review compensating controls for exposed systems while remediation is scheduled and verified
  • Check relevant monitoring, detection, and logs for exposed assets that need extra review

Evidence notes

The CVE record was published on 2026-02-23T22:16:25.233Z and last modified on 2026-07-14T19:16:52.957Z. The NVD entry is currently Analyzed. The vulnerability was reported by a security researcher and is related to the lack of anti-CSRF tokens in Bludit 3.16.1. The vulnerability affects the /admin/uninstall-plugin/ and /admin/install-theme/ endpoints. The information provided is based on the CVE record and NVD entry.

Official resources

AI-assisted PatchSiren debrief based on the supplied source corpus. The CVE record was published on 2026-02-23T22:16:25.233Z and has not been modified since then. The NVD entry is currently Analyzed.