Full Report
Hackers are actively exploiting CVE-2025-49113, a critical vulnerability in the widely used Roundcube open-source webmail application that allows remote execution. [...]
Analysis Summary
# Vulnerability: Critical Roundcube Webmail Exploit Being Sold on Hacker Forums
## CVE Details
- CVE ID: CVE-2025-49113 (Note: CVE-2025-48745 mentioned in demonstration is a rejected duplicate candidate for this CVE)
- CVSS Score: Not explicitly provided, labeled as "critical"
- CWE: Cross-Site Request Forgery (CSRF) implied (stated mechanism of exploit)
## Affected Systems
- Products: Roundcube Webmail
- Versions: Not specified in the provided text. Patching information is absent.
- Configurations: Affects instances hosted publicly, often bundled in web hosting control panels (cPanel, Plesk). Estimated 1.2 million hosts globally as of the report.
## Vulnerability Description
The vulnerability is described as a critical flaw in the Roundcube webmail application that can be exploited via Cross-Site Request Forgery (CSRF). A researcher published a demonstration video utilizing the vulnerability.
## Exploitation
- Status: Exploit is reportedly being sold on a hacker forum. A Proof of Concept (PoC) video exists.
- Complexity: Implied to be low enough to generate significant interest from exploit brokers (up to $50,000 offered for RCE via Roundcube exploits).
- Attack Vector: Likely Network, leveraging the web interface (typical for CSRF).
## Impact
- Confidentiality: High (Likely due to the ability to execute actions on behalf of the user).
- Integrity: High (Likely due to the ability to execute actions on behalf of the user).
- Availability: Unknown, but may be impacted depending on the actions an attacker can perform.
## Remediation
### Patches
- No specific patch version or vendor advisory release information was detailed in this summary.
### Workarounds
- No specific workarounds were provided in the source material. General mitigation for CSRF typically involves implementing strong anti-CSRF tokens, which may require vendor updates for application-level exploits.
## Detection
- Details on specific Indicators of Compromise (IoCs) or detection methods were not provided. Detection would likely involve monitoring network traffic for unusual requests targeting Roundcube instances or analyzing server logs for unexpected requests matching known CSRF patterns.
## References
- Vendor advisories: Not provided.
- Relevant links:
- bleepingcomputer com/news/security/hacker-selling-critical-roundcube-webmail-exploit-as-tech-info-disclosed/
- x com/k\_firsov (Researcher's handle)
- crowdfense com/exploit-acquisition-program/ (Exploit acquisition program reference)
- nvd nist gov/vuln/detail/cve-2025-48745 (Rejected CVE status reference)