CVE-2025-29460
Published: 17 April 2025
Summary
CVE-2025-29460 is a high-severity SSRF (CWE-918) vulnerability in Mybb Mybb. Its CVSS base score is 7.6 (High).
Operationally, ranked in the top 23.2% of CVEs by exploit likelihood; it is not currently listed in the CISA KEV catalog.
Deeper analysis
CVE-2025-29460 is an SSRF vulnerability, tracked under CWE-918, that affects the Add Mycode function in MyBB 1.8.38. The flaw permits a remote attacker to obtain sensitive information, carrying a CVSS 3.1 score of 7.6 that reflects network attack vector, low attack complexity, and low-privileged access without user interaction.
An authenticated user with board administration capabilities can supply crafted input through the affected function to trigger server-side requests, potentially disclosing internal resources or data that would otherwise be inaccessible. The vendor disputes the issue on the grounds that the actions fall within normal administrator privileges and that existing SSRF protections already limit impact.
MyBB documentation recommends configuring restrictions on access to private hosts and IP addresses as a direct mitigation for this class of server-side request forgery exposure. The associated EPSS scores remain low, with a current value of 0.0095 and a peak of 0.0136, indicating limited observed exploitation interest since disclosure.
EU & UK References
- 🇪🇺 ENISA EUVD: EUVD-2025-11805
Vulnerability details
An issue in MyBB 1.8.38 allows a remote attacker to obtain sensitive information via the Add Mycode function. NOTE: the Supplier disputes this because of the allowed actions of Board administrators and because of SSRF mitigation.
- CWE(s)
Related Threats
No named actor attribution yet. ATT&CK technique mapping in progress for this CVE.
Affected Assets
Mitigating Controls
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 attempts server-side requests to internal resources, identifying SSRF weaknesses for remediation.
Outbound connections to external resources can be monitored and limited at the boundary, reducing SSRF impact.
Validates server-side URLs and resource references to block SSRF attempts.
Detects server-side request forgery through monitoring of unexpected outbound connections.