CVE-2026-113388 Details
Description
A security flaw has been discovered in opensource-socialnetwork up to 9.11/10.1. This affects the function input of the file actions/administrator/cache/dynamic.php of the component Cache Settings. Performing a manipulation of the argument host/port/username/password/type/status results in code injection. The attack can be initiated remotely. The exploit has been released to the public and may be used for attacks. The patch is named 40945057cb451f0f35153110bc7e889c094400e1. Applying a patch is the recommended action to fix this issue. The vendor explains: "While we have implemented this patch as a defense-in-depth measure, we emphasize that in Open Source Social Network (OSSN), site administrators are fully trusted users who are intentionally granted broad system authority by design including the native ability to upload custom components/themes containing arbitrary PHP code."
A code injection vulnerability has been identified in Open Source Social Network (OSSN) versions through 9.11/10.1. The issue resides in the Cache Settings component, specifically within the 'actions/administrator/cache/dynamic.php' file. The vulnerability allows for remote code execution by injecting malicious payloads into several parameters, including 'host', 'port', 'username', 'password', 'type', and 'status'. The injected code is executed on every page request, creating a persistent backdoor that remains active until the cache settings are manually overwritten.
Users are advised to update to the latest version of Open Source Social Network, where this vulnerability has been patched. The official upgrade instructions can be found on the OSSN website.
Metrics
CVSS 4.0 Severity and Vector Strings:
VolerionCVSS 3.x Severity and Vector Strings:
No data available for CVSS Version 2.0 on this CVE.
Volerion
Assessed Oct 20, 2026CISA-ADP
Assessed Oct 20, 2026References to Advisories, Solutions, and Tools
By selecting these links, you will be leaving this site. These are references gathered from the official CVE record and are not endorsed by Volerion.
| URL | Source(s) | Tag(s) |
|---|---|---|
| https://gist.github.com/qianqiusujiu/c0452f09e91de23f002a384038325104 | [email protected] | ExploitTechnical Analysis |
| https://github.com/opensource-socialnetwork/opensource-socialnetwork/ | [email protected] | Vendor |
| https://github.com/opensource-socialnetwork/opensource-socialnetwork/commit/40945057cb451f0f35153110bc7e889c094400e1 | [email protected] | Source CodeVendor |
| https://vuldb.com/cve/CVE-2026-113388 | [email protected] | AdvisoryPermission Required |
| https://vuldb.com/submit/1009749 | [email protected] | Issue TrackingPermission Required |
| https://vuldb.com/vuln/422662 | [email protected] | AdvisoryPermission Required |
| https://vuldb.com/vuln/422662/cti | [email protected] | Content Wall |
Weakness Enumeration
| CWE-ID | CWE Name | Source |
|---|---|---|
| CWE-74 | Improper Neutralization of Special Elements in Output Used by a Downstream Component ('Injection') | [email protected] |
| CWE-94 | Improper Control of Generation of Code ('Code Injection') | [email protected] |
Affected Products
| Product | Versions |
|---|---|
| Open Source Social Network | >= 9.1.0.0, <= 9.11 >= 10.0, <= 10.1 |
CPE
Remediation
| |
Change History
2 change records found show changes
| Date | Action | Recorded By |
|---|---|---|
| Oct 20, 2026 | CVE Modified | CISA-ADP |
| Oct 20, 2026 | New CVE Received | [email protected] |