Roundcube Webmail before 1.5.10 and 1.6.x before 1.6.11 allows remote code execution by authenticated users because the _from parameter in a URL is not validated in program/actions/settings/upload.php

Description

Post-Auth RCE via PHP Object Deserialization vulnerability (CVE-2025-49113)

Affected Products

Also Affects

Downstream vendors/products affected by this vulnerability

References

• https://fearsoff.org/research/roundcube(Third Party Advisory)
• https://github.com/roundcube/roundcubemail/commit/0376f69e958a8fef7f6f09e352c541b4e7729c4d(Patch)
• https://github.com/roundcube/roundcubemail/commit/7408f31379666124a39f9cb1018f62bc5e2dc695(Patch)
• https://github.com/roundcube/roundcubemail/commit/c50a07d88ca38f018a0f4a0b008e9a1deb32637e(Patch)
• https://github.com/roundcube/roundcubemail/pull/9865(Issue Tracking)
• https://github.com/roundcube/roundcubemail/releases/tag/1.5.10(Release Notes)
• https://github.com/roundcube/roundcubemail/releases/tag/1.6.11(Release Notes)
• https://roundcube.net/news/2025/06/01/security-updates-1.6.11-and-1.5.10(Vendor Advisory)
• https://www.vicarius.io/vsociety/posts/cve-2025-49113-roundcube-mitigation-script(Exploit, Mitigation, Third Party Advisory)
• https://www.vicarius.io/vsociety/posts/cve-2025-49113-roundcube-vulnerability-detection(Exploit, Mitigation, Third Party Advisory)
• http://www.openwall.com/lists/oss-security/2025/06/02/3(Mailing List, Third Party Advisory)
• https://lists.debian.org/debian-lts-announce/2025/06/msg00008.html(Mailing List, Third Party Advisory)
• https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2025-49113(US Government Resource)
• https://github.com/projectdiscovery/nuclei-templates/blob/main/http/cves/2025/CVE-2025-49113.yaml(exploit, nuclei)

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