CVEvulnerability
CVE-2026-53674
7.1 HIGH
Official page ↗
- Status
- Deferred
- Published
- 2026-06-10
- Last modified
- 2026-07-23
- Assigner
- [email protected]
- CVSS 4.0 ([email protected])
- 7.1 HIGH — CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:L/VI:N/VA:H/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X
- CVSS 3.1 ([email protected])
- 7.1 HIGH — CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:H
- Weaknesses
- CWE-943
Description
BuddyPress 14.4.0 contains a regular expression injection vulnerability in the activity mention resolver that, when username compatibility mode is enabled, allows attackers to manipulate a REGEXP database clause by crafting mention names containing regex metacharacters. Attackers can submit @mentions whose metacharacters pass through esc_sql unescaped and are inserted into an unprepared REGEXP query against the users table, enabling boolean-based inference of usernames and denial of service through catastrophic backtracking.
Related
Weakness · CWE (1)
- CWE-943 Improper Neutralization of Special Elements in Data Query Logic weakness
References
- https://buddypress.org/ buddypress.org
- https://wordpress.org/plugins/buddypress/ wordpress.org
- https://www.vulncheck.com/advisories/buddypress-regexp-injection-via-mention-username-resolution www.vulncheck.com