CVE-2023-43323
Moosocial 3.1.8
Raw vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/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-2023-43323 is a medium-severity External Control of System or Configuration Setting (CWE-15) vulnerability in Moosocial Moosocial. Its CVSS base score is 6.5 (Medium).
Operationally, exploitation aligns with the MITRE ATT&CK technique Winlogon Helper DLL (T1547.004); ranked in the top 19% 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.
mooSocial version 3.1.8 contains an external service interaction vulnerability in its post functionality. The affected parameters include messageText, data[wall_photo], data[userShareVideo], and data[userShareLink]. When these fields are supplied with attacker-controlled values, the application causes the server to issue HTTP and DNS requests to external systems. The issue is tracked as CVE-2023-43323 with a CVSS 3.1 base score of 6.5 and is associated with CWE-15.
Remote attackers can exploit the flaw without authentication or user interaction by submitting crafted post requests. Successful exploitation allows the server to be coerced into interacting with arbitrary external endpoints, resulting in limited disclosure of internal network information and limited integrity impact on the affected installation.
Public proof-of-concept material is available in repositories linked to the CVE. The current EPSS score of 0.8087 matches the recorded peak, indicating sustained exploitation interest since disclosure. No vendor advisory or patch information is referenced in the available sources.
OWASP Top 10 for Web (2025)
EU & UK References
- 🇪🇺 ENISA EUVD: EUVD-2023-47742
Vulnerability Data
mooSocial 3.1.8 is vulnerable to external service interaction on post function. When executed, the server sends a HTTP and DNS request to external server. The Parameters effected are multiple - messageText, data[wall_photo], data[userShareVideo] and data[userShareLink].
- CWE(s)
Related Threats
MITRE ATT&CK Enterprise Techniques
CVEs Like This One
Affected Assets
Mitigating Controls
Control response
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- 4 hardening rules · 2 OS baselines
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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.
The policy and procedures establish internal controls and change management for system configuration settings, reducing the feasibility of external unauthorized modifications.
Baseline configuration under change control directly prevents unauthorized external modification of system or configuration settings.
Requires approval, documentation, and security impact review of all configuration changes, directly preventing unauthorized external control of system settings.
Impact analysis of configuration changes reduces the risk of deploying settings that permit unauthorized external control.
Restricting changes to system and configuration settings prevents external entities from controlling those settings without approval.
Establishing, implementing, approving deviations from, and monitoring configuration settings directly prevents external or unauthorized control of system settings.
The plan defines processes for identifying and managing configuration items, preventing external unauthorized control of system settings.
Vulnerability scanners directly detect externally controllable or misconfigured settings using standardized checklists.
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.
Formal change and exception management catches externally driven configuration alterations.
Least-privilege access policies reduce unauthorized external modification of configuration values.
Hardened configuration baselines and change controls directly limit external manipulation of settings.
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.5.15 only requires that access control policies and rules be defined and documented; it does not itself enforce, implement or configure those rules to stop external control of system/configuration settings, so the weakness remains fully exploitable.
A.5.18 governs the provisioning, review, and revocation of authorized access rights; it has no bearing on whether a system or configuration setting can be externally controlled by a user (CWE-15).
Documented operating procedures define how configuration changes must be performed.
Use of privileged utility programs is controlled to prevent misuse of configuration tools.
Privileged access rights reduce the number of users who can alter configuration.