CVE-2025-49113 on CISA KEV

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, leading to PHP Object Deserialization.

01What CISA says about this vulnerability

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, leading to PHP Object Deserialization.

02Required action — verbatim from CISA

Apply mitigations per vendor instructions, follow applicable BOD 22-01 guidance for cloud services, or discontinue use of the product if mitigations are unavailable.

03Notes & references

• roundcube.net — https://roundcube.net/news/2025/06/01/security-updates-1.6.11-and-1.5.10
• github.com — https://github.com/roundcube/roundcubemail/pull/9865
• github.com — https://github.com/roundcube/roundcubemail/releases/tag/1.6.11
• github.com — https://github.com/roundcube/roundcubemail/commit/0376f69e958a8fef7f6f09e352c541…
• github.com — https://github.com/roundcube/roundcubemail/releases/tag/1.5.10
• github.com — https://github.com/roundcube/roundcubemail/commit/7408f31379666124a39f9cb1018f62…
• github.com — https://github.com/roundcube/roundcubemail/commit/c50a07d88ca38f018a0f4a0b008e9a…
• fearsoff.org — https://fearsoff.org/research/roundcube
• www.vicarius.io — https://www.vicarius.io/vsociety/posts/cve-2025-49113-roundcube-vulnerability-de…
• www.vicarius.io — https://www.vicarius.io/vsociety/posts/cve-2025-49113-roundcube-mitigation-scrip…

04SARA's analyst layer — why this matters

This vulnerability is currently on the CISA KEV list, which CISA only adds CVEs to when there is reliable evidence of active exploitation in the wild. For federal civilian agencies, BOD 22-01 requires remediation by the due date above. For everyone else, KEV is the strongest "patch immediately" signal you can get from public threat intel.

05Affected products (summary)

Vendor	Product	Versions
Roundcube	Webmail	0, 1.6.0

06Detection

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