XSS in Horde Groupware
CVE-2020-8035
The image view functionality in Horde Groupware Webmail Edition before 5.2.22 is affected by a stored Cross-Site Scripting (XSS) vulnerability via an SVG image upload containing a JavaScript payload. An attacker can obtain access to a victim's webmail account by making them visit a malicious URL.
Vulnerability class: XSS (Cross-Site Scripting)
Published · last modified .
CVSS v3 metric
CVSS v3 base score 6.1 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N.
EPSS exploit prediction
EPSS: 0.009 (58.8th percentile), scored .
Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 59th percentile — 58.8% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.009 · newest: 0.009 · change: 0.000
Affected products
Weakness classification (CWE)
References
- lists.horde.org/archives/announce/2020/001290.html (Mailing List, Vendor Advisory)
- github.com/horde/base/blob/c00f2fdb222055fb2ccb6d53b5b5240c0a7d2a75/docs/CHANGES (Third Party Advisory, Release Notes)
- lists.debian.org/debian-lts-announce/2020/05/msg00035.html (mailing-list)
Frequently asked questions
- What is CVE-2020-8035?
- CVE-2020-8035 is a medium-severity vulnerability in Horde Groupware, classified under Cross-site Scripting. CVSS score: 6.1/10. Published 2020-05-18.
- How severe is CVE-2020-8035?
- Medium severity. CVSS v3 base score is 6.1 out of 10.