CVE-2026-5144Disclosure

MEDIUMCVSS 8.8 · HIGH

Exploitation observed; activity peaked at 4 mentions and remains active

Immediate actions

Patch affected systems immediately
Assume compromise if assets are exposed
Hunt for exploitation attempts and persistence artifacts
Increase monitoring for publicly documented tradecraft

Recommended action window: Immediate (within 24h)

NVD 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.

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5.5/ 10 priority

Sources & remediation

Other references

Weakness type (CWE)

CWE-269

Priority

MEDIUM

Exploitation

ACTIVE

PoC

YES

Patch

AVAILABLE

Momentum

STABLE

Threat summary

Active exploitation appears in 1 classified signals
Public PoC is present in monitored signal
Patch or workaround signal is available
5 mentions across 2 observed days

What's happening

Active exploitation reported across 1 signal
PoC mentioned or linked in 1 signal
Patch or workaround mentioned in 1 signal
Technical details provided in 4 signals
Disclosure: 3 classified signals
Peaked 1d ago at 4 mentions (2026-04-11); latest day: 1
5 total mentions across 2 days

Deep dive

Activity timeline5 mentions / 2d

Signal classification3 categories

Disclosure

360.0%

Patch

120.0%

PoC

120.0%

Referenced assets4 URLs

By indicator

Classification over time

Date	Total	Labels

2026-04-11	4	Disclosure3Patch1
2026-04-18	1	PoC1

Full discourse5 posts

NerdieNews@NewsNerdie180d
Patch
CVE-2026-5144 lets BuddyPress Groupblog users escalate privileges from Subscriber to Admin. This vulnerability is critical and actively exploited. Patch now to prevent unauthorized access and potential data breaches. #NerdieNews #CyberSecurity #InfoSec #WordPress #DevSecOps
Post summary
CVE-2026-5144 allows BravoPress Groupblog users to elevate privileges from Subscriber to Admin. Immediate patching is required to stop ongoing exploitation and prevent unauthorized access and data breaches.
0001087
55 followersView on X
Atomic Edge@atomicedgeWAF173d
PoC
https://atomicedge.io/cve-proof/cve-2026-5144-bp-groupblog-version-1-9-3-high-vulnerability-proof-of-concept CVE-2026-5144 #WordPress plugin #vulnerability bp-groupblog #cybersecurity #wordpressfirewall #wordpresssecurity #hacking #wpsecurity #atomicedge
Post summary
The post announces a proof‑of‑concept for CVE‑2026‑5144 targeting the bp‑groupblog WordPress plugin; it focuses on the demonstration of the vulnerability rather than active exploitation, patches, or technical depth.
0000031
6 followersView on X
CVE@CVEnew180d
Disclosure
CVE-2026-5144 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 … https://www.cve.org/CVERecord?id=CVE-2026-5144
Post summary
CVE-2026-5144 reveals a privilege‑escalation vulnerability in BuddyPress Groupblog plugin versions up to 1.9.3, triggered by group blog settings; the CVE record link provides further details.
00000168
57.1K followersView on X
Vulmon Vulnerability Feed@VulmonFeeds181d
Disclosure
CVE-2026-5144 Privilege Escalation in BuddyPress Groupblog Plugin for WordPress Up to 1.9.3 https://vulmon.com/vulnerabilitydetails?qid=CVE-2026-5144
Post summary
The text announces a privilege escalation vulnerability in BuddyPress Groupblog Plugin up to version 1.9.3, providing basic technical details but no proofs, exploits, or patches.
0000042
4.0K followersView on X
CVEFind.com@CveFindCom181d
Disclosure
[CVE-2026-5144: HIGH] BuddyPress Groupblog plugin for WordPress up to version 1.9.3 is susceptible to Privilege Escalation, enabling authenticated attackers to elevate users to Administrators on a Multisite ne...#cve,CVE-2026-5144,#cybersecurity https://cvefind.com/CVE-2026-5144
Post summary
The post announces a new privilege escalation vulnerability (CVE-2026-5144) in BuddyPress Groupblog plugin up to version 1.9.3 that allows authenticated users on multisite WordPress installs to become administrators.
0000054
619 followersView on X

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What researchers are saying

CVE-2026-5144

NerdieNews@NewsNerdiePatch

CVE-2026-5144 allows BravoPress Groupblog users to elevate privileges from Subscriber to Admin. Immediate patching is required to stop ongoing exploitation and prevent unauthorized access and data breaches.

Atomic Edge@atomicedgeWAFPoC

The post announces a proof‑of‑concept for CVE‑2026‑5144 targeting the bp‑groupblog WordPress plugin; it focuses on the demonstration of the vulnerability rather than active exploitation, patches, or technical depth.

CVE@CVEnewDisclosure

CVE-2026-5144 reveals a privilege‑escalation vulnerability in BuddyPress Groupblog plugin versions up to 1.9.3, triggered by group blog settings; the CVE record link provides further details.

Vulmon Vulnerability Feed@VulmonFeedsDisclosure

The text announces a privilege escalation vulnerability in BuddyPress Groupblog Plugin up to version 1.9.3, providing basic technical details but no proofs, exploits, or patches.

CVEFind.com@CveFindComDisclosure

The post announces a new privilege escalation vulnerability (CVE-2026-5144) in BuddyPress Groupblog plugin up to version 1.9.3 that allows authenticated users on multisite WordPress installs to become administrators.