XSS in Synacor Zimbra Collaboration Suite
CVE-2024-45510
An issue was discovered in Zimbra Collaboration (ZCS) through 10.0. Zimbra Webmail (Modern UI) is vulnerable to a stored Cross-Site Scripting (XSS) attack due to improper sanitization of user input. This allows an attacker to inject malicious code into specific fields of an e-mail message. When the victim adds the attacker to their contacts, the malicious code is stored and executed when viewing the contact list. This can lead to unauthorized actions such as arbitrary mail sending, mailbox exfiltration, profile picture alteration, and other malicious actions. Proper sanitization and escaping of input fields are necessary to mitigate this vulnerability.
Vulnerability class: XSS (Cross-Site Scripting)
Published · last modified .
CVSS v3 metric
CVSS v3 base score 5.4 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N.
EPSS exploit prediction
EPSS: 0.003 (20.9th percentile), scored .
Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 21st percentile — 20.9% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.003 · newest: 0.003 · change: 0.000
Affected products
- Synacor Zimbra Collaboration Suite — versions 9.0.0
Weakness classification (CWE)
References
- wiki.zimbra.com/wiki/Security_Center (Vendor Advisory)
- wiki.zimbra.com/wiki/Zimbra_Responsible_Disclosure_Policy (Product)
- wiki.zimbra.com/wiki/Zimbra_Releases/10.1.1 (Release Notes)
- wiki.zimbra.com/wiki/Zimbra_Releases/10.0.9 (Release Notes)
- wiki.zimbra.com/wiki/Zimbra_Releases/9.0.0/P41 (Release Notes)
Frequently asked questions
- What is CVE-2024-45510?
- CVE-2024-45510 is a medium-severity vulnerability in Synacor Zimbra Collaboration Suite, classified under Cross-site Scripting. CVSS score: 5.4/10. Published 2024-11-20.
- How severe is CVE-2024-45510?
- Medium severity. CVSS v3 base score is 5.4 out of 10.