Is there a public exploit for CVE-2026-25784?

No public exploit for CVE-2026-25784 was found in Exploit-DB, Metasploit, Nuclei templates or public proof-of-concept repositories. That is an absence of evidence rather than proof that none exists.

How severe is CVE-2026-25784?

CVE-2026-25784 scores CVSS 9.3 (v4.0), rated critical. EPSS puts the chance of exploitation in the next 30 days at 0.35%.

What does CVE-2026-25784 affect?

CVE-2026-25784 affects Hallo Welt! GmbH BlueSpice.

9.3 Critical

Initialization of a Resource with an Insecure Default vulnerability in Hallo Welt!

CVE-2026-25784

Initialization of a Resource with an Insecure Default vulnerability in Hallo Welt! GmbH BlueSpice (container image bluespice/wiki) allows privilege escalation. The default value of $mwsgTokenAuthenticatorServiceCIDR in the container's LocalSettings.php was intended to restrict internal service authentication to the container network, but evaluated to an empty string when the environment variable WIKISERVICETOKENAUTHALLOWED was not set. An empty value disables the IP restriction in the token authenticator component (mwstake/mediawiki-component-token-authenticator). As a result, any user with read access to the wiki (anonymous users on publicly readable wikis) could obtain an application token from the REST API and use it to get a session with sysop privileges as the internal service user. This issue affects BlueSpice: from 5.2.3 before 5.2.7, and the 5.2.7 container images published before 2026-10-19 15:37 UTC.

Assessment

CVSS: 9.3 (v4.0)
Severity: Critical
EPSS: 0.35% chance of exploitation in the next 30 days
Known exploited: Not listed in CISA KEV
Exploit availability: Nothing found in Exploit-DB, Metasploit, Nuclei or public PoC repositories
Published: 23 October 2026
Last updated: 2 November 2026
Affected: Hallo Welt! GmbH · BlueSpice
Assigner: HW

CVSS vectorCVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N

At the source

EUVD (ENISA)

References

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