CVE-2023-40869
XSS in Moosocial 3.1.6 … 3.1.7
Raw vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:NCVSS and EPSS are reproduced from their sources (NVD, FIRST EPSS). Risk Priority is our own derived reading, not an NVD score.
Summary
CVE-2023-40869 is a medium-severity Cross-site Scripting (CWE-79) vulnerability in Moosocial Moosocial. Its CVSS base score is 6.1 (Medium).
Operationally, exploitation aligns with the MITRE ATT&CK technique Protocol or Service Impersonation (T1001.003); ranked in the top 35% of CVEs by exploit likelihood; it is not currently listed in the CISA KEV catalog; a public proof-of-concept is referenced.
Deeper analysis AI-assisted summary
Synthesised by an AI model from the NVD description and linked references — a reading aid, not an authoritative source.
CVE-2023-40869 is a cross-site scripting vulnerability, tracked under CWE-79, that affects mooSocial Software versions 3.1.6 and 3.1.7. The flaw resides in the edit_menu, copuon, and group_categorias functions and permits injection of malicious scripts through crafted input, as reflected in its CVSS 3.1 score of 6.1 with a network attack vector, low complexity, and required user interaction.
A remote attacker can exploit the issue without authentication by supplying a malicious payload that executes in the context of another user's session. Successful exploitation allows the attacker to achieve limited impacts on confidentiality and integrity, such as stealing session data or performing actions on behalf of the victim within the affected mooSocial instance.
Public references consist of GitHub repositories that document the vulnerability but contain no vendor advisories, patch details, or mitigation guidance. The associated EPSS score has remained flat at 0.0929 with no material increase since disclosure.
OWASP Top 10 for Web (2025)
EU & UK References
- 🇪🇺 ENISA EUVD: EUVD-2023-45409
Vulnerability Data
Cross Site Scripting vulnerability in mooSocial mooSocial Software 3.1.6 and 3.1.7 allows a remote attacker to execute arbitrary code via a crafted script to the edit_menu, copuon, and group_categorias functions.
- CWE(s)
Related Threats
MITRE ATT&CK Enterprise Techniques
CVEs Like This One
Affected Assets
Mitigating Controls
Control response
—
—
—
V1.1.2V1.3.2
Likely Mitigating Controls AI
Per-CVE control mapping for this CVE has not run yet; the list below is derived from the weakness types (CWEs) cited in the NVD entry.
Penetration testing submits XSS payloads to web applications, detecting cross-site scripting flaws for subsequent remediation.
Validates web inputs to reject script-related content that could produce XSS.
Output validation against expected content can reject or sanitize script content in generated web pages, reducing XSS exploitability.
Mitigating Controls (NIST CSF 2.0) AI
Derived directly from the weakness types (CWEs) cited in the NVD entry via our AI-authored CWE→CSF cross-walk (authority under review) — links open the control.
Secure SDLC practices directly target introduction of XSS via coding standards/testing (mostly), yet the single broad outcome leaves many specific neutralization vectors unaddressed (partial).
Patching and EOL replacement can remediate known XSS instances in libraries or frameworks (partial) but do nothing to enforce input neutralization in application code (none).
Mitigating Controls (ISO/IEC 27001:2022 Annex A) AI
Derived directly from the weakness types (CWEs) cited in the NVD entry via our AI-authored CWE→ISO cross-walk (authority under review) — links open the control.
A.5.6 only promotes membership in groups to improve knowledge, receive alerts, and share information; it performs no action that stops XSS exploitation (or even the underlying neutralization defect) and is a pure dependency for other controls per the owner's labeling rule.