CVE-2023-43770: Roundcube Webmail Persistent Cross-Site Scripting (XSS) Vulnerability
First published: Fri Sep 22 2023(Updated: )
Roundcube before 1.4.14, 1.5.x before 1.5.4, and 1.6.x before 1.6.3 allows XSS via text/plain e-mail messages with crafted links because of program/lib/Roundcube/rcube_string_replacer.php behavior.
Credit: cve@mitre.org cve@mitre.org cve@mitre.org
| Affected Software | Affected Version | How to fix |
|---|---|---|
| Roundcube Webmail | <1.4.14 | |
| Roundcube Webmail | >=1.5.0<1.5.4 | |
| Roundcube Webmail | >=1.6.0<1.6.3 | |
| Debian Debian Linux | =10.0 | |
| Roundcube email server | =1.4.14 | |
| Roundcube email server | =1.5.x before 1.5.4 | |
| Roundcube email server | =1.6.x before 1.6.3 | |
| debian/roundcube | <=1.3.17+dfsg.1-1~deb10u2 | 1.3.17+dfsg.1-1~deb10u5 1.4.15+dfsg.1-1~deb11u2 1.6.5+dfsg-1~deb12u1 1.6.6+dfsg-2 |
| ubuntu/roundcube | <1.3.6+dfsg.1-1ubuntu0.1~ | 1.3.6+dfsg.1-1ubuntu0.1~ |
| ubuntu/roundcube | <1.4.3+dfsg.1-1ubuntu0.1~ | 1.4.3+dfsg.1-1ubuntu0.1~ |
| ubuntu/roundcube | <1.5.0+dfsg.1-2ubuntu0.1~ | 1.5.0+dfsg.1-2ubuntu0.1~ |
| ubuntu/roundcube | <1.6.2+dfsg-1ubuntu0.1 | 1.6.2+dfsg-1ubuntu0.1 |
| ubuntu/roundcube | <1.6.3+dfsg-1 | 1.6.3+dfsg-1 |
| ubuntu/roundcube | <1.2~ | 1.2~ |
Remedy
Apply mitigations per vendor instructions or discontinue use of the product if mitigations are unavailable.
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Reference Links
- https://github.com/roundcube/roundcubemail/commit/e92ec206a886461245e1672d8530cc93c618a49b
- https://lists.debian.org/debian-lts-announce/2023/09/msg00024.html
- https://roundcube.net/news/2023/09/15/security-update-1.6.3-released
- https://www.bleepingcomputer.com/news/security/cisa-roundcube-email-server-bug-now-exploited-in-attacks/
- https://launchpad.net/bugs/cve/CVE-2023-43770
- https://security-tracker.debian.org/tracker/CVE-2023-43770
- https://ubuntu.com/security/notices/USN-6654-1
- https://www.cve.org/CVERecord?id=CVE-2023-43770
- https://nvd.nist.gov/vuln/detail/CVE-2023-43770
- https://ubuntu.com/security/CVE-2023-43770
- https://www.bleepingcomputer.com/news/security/hackers-exploit-roundcube-webmail-flaw-to-steal-email-credentials/
Peer vulnerabilities
(Found alongside the following vulnerabilities)
Frequently Asked Questions
What is the vulnerability ID for this Roundcube vulnerability?
The vulnerability ID for this Roundcube vulnerability is CVE-2023-43770.
What is the severity of CVE-2023-43770?
The severity of CVE-2023-43770 is medium.
Which versions of Roundcube are affected by CVE-2023-43770?
Roundcube versions before 1.4.14, 1.5.x before 1.5.4, and 1.6.x before 1.6.3 are affected by CVE-2023-43770.
How does CVE-2023-43770 occur?
CVE-2023-43770 occurs due to XSS in text/plain e-mail messages with crafted links in Roundcube.
How can I fix CVE-2023-43770?
To fix CVE-2023-43770, update Roundcube to version 1.4.14, 1.5.4, or 1.6.3.
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