CVE-2025-59337
Discourse: Cross-Site Data Exposure via Backup Restore Metacommand Injection in Multisite Deployments
Description
Discourse is an open-source community discussion platform. In versions 3.5.0 and below, malicious meta-commands could be embedded in a backup dump and executed during restore. In multisite setups, this allowed an admin of one site to access data or credentials from other sites. This issue is fixed in version 3.5.1.
INFO
Published Date :
Oct. 1, 2025, 9:16 p.m.
Last Modified :
Oct. 16, 2025, 5:33 p.m.
Remotely Exploit :
Yes !
Source :
[email protected]
CVSS Scores
| Score | Version | Severity | Vector | Exploitability Score | Impact Score | Source |
|---|---|---|---|---|---|---|
| CVSS 3.1 | MEDIUM | [email protected] | ||||
| CVSS 4.0 | MEDIUM | [email protected] |
Solution
- Update Discourse to version 3.5.1 or later.
- Review and sanitize backup files before restoring.
- Restrict access to the backup restore process.
References to Advisories, Solutions, and Tools
Here, you will find a curated list of external links that provide in-depth
information, practical solutions, and valuable tools related to
CVE-2025-59337.
CWE - Common Weakness Enumeration
While CVE identifies
specific instances of vulnerabilities, CWE categorizes the common flaws or
weaknesses that can lead to vulnerabilities. CVE-2025-59337 is
associated with the following CWEs:
Common Attack Pattern Enumeration and Classification (CAPEC)
Common Attack Pattern Enumeration and Classification
(CAPEC)
stores attack patterns, which are descriptions of the common attributes and
approaches employed by adversaries to exploit the CVE-2025-59337
weaknesses.
We scan GitHub repositories to detect new proof-of-concept exploits. Following list is a collection of public exploits and proof-of-concepts, which have been published on GitHub (sorted by the most recently updated).
Results are limited to the first 15 repositories due to potential performance issues.
The following list is the news that have been mention
CVE-2025-59337 vulnerability anywhere in the article.
The following table lists the changes that have been made to the
CVE-2025-59337 vulnerability over time.
Vulnerability history details can be useful for understanding the evolution of a vulnerability, and for identifying the most recent changes that may impact the vulnerability's severity, exploitability, or other characteristics.
-
Initial Analysis by [email protected]
Oct. 16, 2025
Action Type Old Value New Value Added CVSS V3.1 AV:N/AC:L/PR:H/UI:N/S:C/C:H/I:N/A:N Added CPE Configuration OR *cpe:2.3:a:discourse:discourse:*:*:*:*:beta:*:*:* versions up to (excluding) 3.6.0 *cpe:2.3:a:discourse:discourse:*:*:*:*:stable:*:*:* versions up to (excluding) 3.5.1 *cpe:2.3:a:discourse:discourse:3.6.0:beta1:*:*:beta:*:*:* Added Reference Type GitHub, Inc.: https://github.com/discourse/discourse/commit/43536b60d012cc8084e7e701d6afab9ba01e28a5 Types: Patch Added Reference Type GitHub, Inc.: https://github.com/discourse/discourse/security/advisories/GHSA-7xjr-4f4g-9887 Types: Vendor Advisory -
New CVE Received by [email protected]
Oct. 01, 2025
Action Type Old Value New Value Added Description Discourse is an open-source community discussion platform. In versions 3.5.0 and below, malicious meta-commands could be embedded in a backup dump and executed during restore. In multisite setups, this allowed an admin of one site to access data or credentials from other sites. This issue is fixed in version 3.5.1. Added CVSS V4.0 AV:N/AC:H/AT:N/PR:H/UI:N/VC:L/VI:N/VA:N/SC:H/SI:H/SA:H/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 Added CWE CWE-77 Added Reference https://github.com/discourse/discourse/commit/43536b60d012cc8084e7e701d6afab9ba01e28a5 Added Reference https://github.com/discourse/discourse/security/advisories/GHSA-7xjr-4f4g-9887