CVE-2026-5144: BuddyPress Groupblog (WordPress plugin) · Improper Privilege Management
Affects BuddyPress Groupblog (WordPress plugin)Source CVE Database V5
Not known to be exploited · CVSS 8.8 High.
Data as of 30 Oct 2026, 11:52 UTC
- EPSS
- 0.4% chance of exploitation in 30 days – higher than 34% of CVEsExploit Prediction Scoring System: the likelihood attackers will use this flaw soon.
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:HExploitation evidence
Disclosed: evidence found.
CVE published 11 Apr 2026
Detectable: no evidence on record.
No public nuclei template indexed
Weaponized: no evidence on record.
No public exploit code indexed in Metasploit or Exploit-DB
Exploited in the wildExploited: no evidence on record.
Not in CISA KEV and no source reports exploitation
Observed by OffSeq MirageSeen by Mirage: no evidence on record.
No attack traffic recorded by OffSeq Mirage sensors
A missing step is not evidence of safety. Sources: cve.org (opens in a new tab), the Metasploit, Exploit-DB and nuclei-templates index as of 30 Oct 2026.
What to do
Affected software
| Product | Affected | Fixed in |
|---|---|---|
| boonebgorgesBuddyPress Groupblog | Affected
| Fixed in– |
AI-suggested
Until an official fix is available, restrict group creation and administration privileges to trusted users only, and monitor for suspicious group associations or role assignments. Avoid allowing Subscriber-level users to create groups or manage group blog settings. Review and harden WordPress Multisite permissions and consider disabling the BuddyPress Groupblog plugin if not essential.
Description
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 the Multisite network.
References
- wordfence.com/threat-intel/vulnerabilities/id/8129046a-5aa5-4644-babc-0eca9aa524d2?source=cve (opens in a new tab)
- plugins.trac.wordpress.org/browser/bp-groupblog/trunk/bp-groupblog.php (opens in a new tab)
- plugins.trac.wordpress.org/browser/bp-groupblog/tags/1.9.3/bp-groupblog.php (opens in a new tab)
- plugins.trac.wordpress.org/browser/bp-groupblog/trunk/bp-groupblog.php (opens in a new tab)
- plugins.trac.wordpress.org/browser/bp-groupblog/tags/1.9.3/bp-groupblog.php (opens in a new tab)
- plugins.trac.wordpress.org/browser/bp-groupblog/trunk/bp-groupblog.php (opens in a new tab)
- plugins.trac.wordpress.org/browser/bp-groupblog/tags/1.9.3/bp-groupblog.php (opens in a new tab)
- github.com/boonebgorges/bp-groupblog/commit/b824593add9e2c53ef4f0d2e0824d4de0785411f (opens in a new tab)