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SCA: security update for flarum/core (GHSA-hph3-hv3c-7725)
low Tenable Cloud Security Plugin ID 415864
Description
There are packages installed that are affected by a vulnerability referenced in the following CVE:- Flarum is a discussion platform for websites. If the first post of a discussion is permanently deleted but
the discussion stays visible, any actor who can view the discussion is able to create a new reply via the
REST API, no matter the reply permission or lock status. This includes users that don't have a validated
email. Guests cannot successfully create a reply because the API will fail with a 500 error when the user
ID 0 is inserted into the database. This happens because when the first post of a discussion is
permanently deleted, the `first_post_id` attribute of the discussion becomes `null` which causes access
control to be skipped for all new replies. Flarum automatically makes discussions with zero comments
invisible so an additional condition for this vulnerability is that the discussion must have at least one
approved reply so that `discussions.comment_count` is still above zero after the post deletion. This can
open the discussion to uncontrolled spam or just unintentional replies if users still had their tab open
before the vulnerable discussion was locked and then post a reply when they shouldn't be able to. In
combination with the email notification settings, this could also be used as a way to send unsolicited
emails. Versions between `v1.3.0` and `v1.6.3` are impacted. The vulnerability has been fixed and
published as flarum/core v1.6.3. All communities running Flarum should upgrade as soon as possible. There
are no known workarounds. (CVE-2023-22489)
See Also
Plugin Details
Severity: Low
ID: 415864
Version: Revision 1.7
Type: Local
Family: SCA Checks
Published: 1/23/2025
Updated: 7/2/2026
Supported Sensors: Tenable Cloud Security, Tenable Self-Hosted Container Security
Risk Information
VPR
Risk Factor: Low
Score: 1.2
Percentile: 0.01
Vendor
Vendor Severity: Low
CVSS v2
Risk Factor: Medium
Base Score: 4
Temporal Score: 3
Vector: CVSS2#AV:N/AC:L/Au:S/C:N/I:P/A:N
CVSS Score Source: CVE-2023-22489
CVSS v3
Risk Factor: Low
Base Score: 3.5
Temporal Score: 3.1
Vector: CVSS:3.0/AV:N/AC:L/PR:L/UI:R/S:U/C:N/I:L/A:N
Temporal Vector: CVSS:3.0/E:U/RL:O/RC:C
Vulnerability Information
Exploit Ease: No known exploits are available
Patch Publication Date: 1/10/2023
Vulnerability Publication Date: 1/10/2023
Reference Information
CVE: CVE-2023-22489
cwe: CWE-862