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
- Published
- Last modified
- Where the record stands: published, rejected by its publisher, or superseded by another id.What do these mean? →
- published
- Whether CISA lists it in its Known Exploited Vulnerabilities catalog: proof that attackers are using it.What do these mean? →
- Listed in CISA KEV
- How many real-world setups can hit the bug, from the vendor's advisory and CISA data. It does not know your setup.What do these mean? →
- Actively exploited
- Fix
- Fixed in 1.5.10, 1.6.11
- Whether working attack code is public (Exploit-DB, Metasploit, Nuclei or GitHub). Public code makes attacks easier.What do these mean? →
- None on Exploit-DB, Metasploit or GitHub
Summary
Roundcube Webmail, an open-source email web application, is affected. An authenticated user could exploit this flaw to run arbitrary code on the server, potentially giving them control over the underlying system.
Summarized by anthropic/claude-haiku-5.5. Verify details against the original sources.
Read the original description
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.
Timeline
- CVE published
- Added to CISA KEV
CISA has evidence of exploitation in the wild
- Record last updated
- CISA remediation deadline
Due date for US federal agencies to patch
- EPSS reached 10%
FIRST estimates at least a 10% chance of exploitation in the next 30 days
Affected versions
- Roundcube Webmail
fixed in 1.5.10; From 1.6.0 · fixed in 1.6.11
- roundcube/roundcubemailPackagist
fixed in 1.5.10
- roundcube/roundcubemailPackagist
From 1.6.0 · fixed in 1.6.11
References 10
roundcube.net
GitHub · roundcube/roundcubemail
fearsoff.org
Questions about CVE-2025-49113
What does this mean?
The _from parameter is passed into PHP object deserialization without proper checks, so a logged-in user can send crafted input that makes the server run code. The impact is remote code execution on the server.Source: roundcube.net
Am I affected, and how do I check?
Roundcube Webmail versions before 1.5.10 and 1.6.x before 1.6.11 are affected. To check a installation, look at the Roundcube version shown in the admin panel or the version file in the installed package.Source: roundcube.net
What should I do about it?
Upgrade to Roundcube 1.6.11 if you run the 1.6 series, or to 1.5.10 if you run the 1.5 series. Both fixed releases were published together as security updates.Source: roundcube.net
Is it being exploited?
Yes. CISA added it to its Known Exploited Vulnerabilities catalog on 2026-02-20, which means it has evidence of attacks. No public exploit code is tracked.Source: cisa.gov, cve.now feed data