CVE-2025-49113

Exp

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.

Published: 2025-06-02 Last update: 2026-02-23 Assigner: [email protected] Source: [email protected]
NVD Status：Analyzed，CVE State: published
View at NVD, CVE.org, EUVD

CVE-2025-49113 is rated Critical Active Threat (98.2/100): CVSS Critical severity, with high exploitation likelihood (EPSS 89.16%, 100th percentile). CISA KEV confirms active exploitation (added 2026-02-20) affecting Roundcube / Webmail. a weakness (CWE-502) Unauthenticated remote administrative access may be possible. The CISA remediation deadline has passed—treat as an emergency patch priority.

Risk is dynamic; we continuously reassess and refresh what is shown on this page as upstream context changes.

CISA KEV Record for CVE-2025-49113

Name: RoundCube Webmail Deserialization of Untrusted Data Vulnerability · CISA KEV detail

Exploit added: 2026-02-20

Action due: 2026-03-13

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

Public exploit references (Exploit-DB) for CVE-2025-49113

EDB-ID Source Kind Published Link
52324 exploit_db edb 2025-06-13 Exploit-DB ↗
— nvd_ref exploit_tag Exploit-DB ↗
— nvd_ref exploit_tag Exploit-DB ↗

Exploit prediction scoring system (EPSS) score for CVE-2025-49113

EPSS lead: Daily EPSS estimates relative likelihood of exploitation; percentile ranks this CVE among scored vulnerabilities (higher = more severe relative rank).

# Date Old EPSS score New EPSS score Delta (New - Old)
1 2026-06-15 90.47% 89.16% -1.31%
2 2026-05-30 90.42% 90.47% +0.05%
3 2026-04-23 — 90.42% —

Full EPSS history (61 records total)

Common vulnerability scoring system (CVSS) metrics for CVE-2025-49113

CVSS metrics for this CVE.

Base score Version Severity Vector Exploitability Impact Score source
9.9 3.1 CRITICAL
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H Click to expand
Attack vector (AV:N)
Could be attacked over the internet or any normal routed network—not just someone sitting at the machine.
Attack complexity (AC:L)
Once they can reach the bug, pulling it off is straightforward—no weird race conditions or rare setup.
Privileges required (PR:L)
A normal user session is enough; they don’t have to be admin.
User interaction (UI:N)
Nobody has to click “OK” or open a trap file; it can work without a victim helping.
Scope (S:C)
Breaking this can reach past the original component and bite other resources—bigger blast radius.
Confidentiality (C:H)
Serious risk that confidential data gets exposed in a big way.
Integrity (I:H)
They could widely tamper with or forge data—trust in the data is badly hurt.
Availability (A:H)
Could take the service down hard or make it unusable for people who depend on it.
 3.1 6.0 [email protected]
8.8 3.1 HIGH
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H Click to expand
Attack vector (AV:N)
Could be attacked over the internet or any normal routed network—not just someone sitting at the machine.
Attack complexity (AC:L)
Once they can reach the bug, pulling it off is straightforward—no weird race conditions or rare setup.
Privileges required (PR:L)
A normal user session is enough; they don’t have to be admin.
User interaction (UI:N)
Nobody has to click “OK” or open a trap file; it can work without a victim helping.
Scope (S:U)
Damage stays in the same “trust bubble” as the broken component—no big spill into unrelated systems.
Confidentiality (C:H)
Serious risk that confidential data gets exposed in a big way.
Integrity (I:H)
They could widely tamper with or forge data—trust in the data is badly hurt.
Availability (A:H)
Could take the service down hard or make it unusable for people who depend on it.
 2.8 5.9 [email protected]

Weakness enumeration for CVE-2025-49113

GitHub Security Advisory for CVE-2025-49113

GHSA-8j8w-wwqc-x596 · Severity: critical · Ecosystem: composer — Roundcube Webmail Vulnerable to Authenticated RCE via PHP Object Deserialization

OS Trackers for CVE-2025-49113

vendor priority summary link
debian not yet assigned CVE-2025-49113 not yet assigned priority: Debian including 1 source packages (roundcube), 5 status rows across 5 suites (bookworm, bullseye, forky, sid, trixie): resolved 5. https://security-tracker.debian.org/tracker/CVE-2025-49113
redhat critical — https://access.redhat.com/security/cve/CVE-2025-49113
ubuntu high CVE-2025-49113 high priority: Ubuntu including 1 source packages (roundcube), 9 status rows across 9 suites (bionic, focal, jammy, noble, oracular, plucky, questing, upstream, xenial): released 8, not-affected 1. https://ubuntu.com/security/CVE-2025-49113

Affected software / configurations for CVE-2025-49113

Vendor Product Version Raw CPE
roundcube webmail < 1.5.10 cpe:2.3:a:roundcube:webmail:*:*:*:*:*:*:*:*
roundcube webmail >= 1.6.0, < 1.6.11 cpe:2.3:a:roundcube:webmail:*:*:*:*:*:*:*:*
debian debian_linux 11.0 cpe:2.3:o:debian:debian_linux:11.0:*:*:*:*:*:*:*

References for CVE-2025-49113

URL Tags
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
cvelogic Threat Intelligence