Answer in brief
CVE-2026-53673 records a High severity (CVSS 8.6) vulnerability in BuddyPress 14.4.0 Private Message IDOR via REST API user_id Parameter. The current sources do not mark it as known exploited. The current feed maps buddypress/buddypress (composer), BuddyPress/BuddyPress (generic), buddypress/buddypress (packagist). Check affected ranges and fixed versions before updating.
Analysis pending evidence review
HOL Guard separates source facts from reviewed analysis. See the methodology.
CVSS is 8.6. The current sources do not mark it as known exploited. Treat this as a source-backed prioritization signal, not a statement about your environment.
Analysis status
Analysis pending evidence review
Factual feed record only; HOL analysis is not approved for indexing. Read the methodology.
The current feed maps buddypress/buddypress (composer), BuddyPress/BuddyPress (generic), buddypress/buddypress (packagist). Check affected ranges and fixed versions before updating.
| Package | Affected range | Fixed version |
|---|---|---|
| buddypress/buddypresscomposer | <14.5.0 | 14.5.0 |
| BuddyPress/BuddyPressgeneric | >=0 <=14.4.0 | Not reported |
| buddypress/buddypresspackagist | >=0 <14.5.0 | 14.5.0 |
Published upstream
Jun 9, 2026
Evidence: source:cvelist:source_dates:source-dates:recordSource modified
Oct 8, 2026
Evidence: source:cvelist:source_dates:source-dates:recordFirst seen by HOL
Aug 12, 2026
BuddyPress 14.4.0 contains an insecure direct object reference vulnerability in the messages REST API that allows authenticated attackers to access arbitrary private message threads by supplying a user_id parameter in the request. Attackers can pass another user's identifier to the get_item_permissions_check method, which validates the supplied user_id instead of the logged-in user and is reused by the update and delete handlers, to read, reply to, or delete any user's private messages.
Quoted source text, attributed separately from HOL analysis.