CVE-2026-5144
HighSummary
Wtyczka BuddyPress Groupblog dla WordPressa jest podatna na eskalację uprawnień we wszystkich wersjach do i włącznie z 1.9.3. Problem wynika z braku odpowiednich kontroli autoryzacyjnych przy obsłudze parametrów `groupblog-blogid`, `default-member` i `groupblog-silent-add` z wejścia użytkownika.
Risk Assessment
Atakujący z poziomem dostępu Subskrybenta lub wyższym może eskalować uprawnienia dowolnego użytkownika, w tym siebie, do roli Administratora na głównym blogu w sieci Multisite, co stwarza poważne zagrożenie dla bezpieczeństwa całej witryny.
Recommendation
Zaleca się aktualizację wtyczki BuddyPress Groupblog do najnowszej wersji oraz wdrożenie odpowiednich kontroli autoryzacyjnych dla parametrów związanych z ustawieniami bloga grupowego.
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Original NVD description (English source)
The BuddyPress Groupblog plugin for WordPress is vulnerable to Privilege Escalation in all versions up to, and including, 1.9.3. This is due to the group blog settings handler accepting the `groupblog-blogid`, `default-member`, and `groupblog-silent-add` parameters from user input without proper authorization checks. The `groupblog-blogid` parameter allows any group admin (including Subscribers who create their own group) to associate their group with any blog on the Multisite network, including the main site (blog ID 1). The `default-member` parameter accepts any WordPress role, including `administrator`, without validation against a whitelist. When combined with `groupblog-silent-add`, any user who joins the attacker's group is automatically added to the targeted blog with the injected role. This makes it possible for authenticated attackers, with Subscriber-level access and above, to escalate any user (including themselves via a second account) to Administrator on the main site of t
Vulnerability data from NVD (NIST) · CISA KEV · EPSS

