CVE-2020-10099
An XSS issue was discovered in Zammad 3.0 through 3.2. Malicious code can be provided by a low...
An XSS issue was discovered in Zammad 3.0 through 3.2. Malicious code can be provided by a low-privileged user through the Ticket functionality in Zammad. The malicious JavaScript will execute within the browser of any user who opens the ticket or has the ticket within the Toolbar.
Attack profile
How easy it is to exploit
- Attack vector
- Network
- Complexity
- Low
- Privileges needed
- Low
- User interaction
- Required
What an attacker can affect
- Confidentiality
- Low
- Integrity
- Low
- Availability
- None
Exploit likelihood
What each source reports
NVD Score used
An XSS issue was discovered in Zammad 3.0 through 3.2. Malicious code can be provided by a low-privileged user through the Ticket functionality in Zammad. The malicious JavaScript will execute within the browser of any user who opens the ticket or has the ticket within the Toolbar.
- Record
CVE-2020-10099- CVSS 3.1
- 5.4 Medium
CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N - CVSS 2.0
- 3.5 Low
AV:N/AC:M/Au:S/C:N/I:P/A:N - Weakness
- CWE-79
- Updated
- 2026-11-02
CVE List No score
An XSS issue was discovered in Zammad 3.0 through 3.2. Malicious code can be provided by a low-privileged user through the Ticket functionality in Zammad. The malicious JavaScript will execute within the browser of any user who opens the ticket or has the ticket within the Toolbar.
- Record
CVE-2020-10099- Updated
- 2026-11-02
EUVDEUVD-2020-2564 No score
An XSS issue was discovered in Zammad 3.0 through 3.2. Malicious code can be provided by a low-privileged user through the Ticket functionality in Zammad. The malicious JavaScript will execute within the browser of any user who opens the ticket or has the ticket within the Toolbar.
- Record
EUVD-2020-2564- Updated
- 2026-11-03
GitHub AdvisoriesGHSA-9789-x2qq-rrpj No score
An XSS issue was discovered in Zammad 3.0 through 3.2. Malicious code can be provided by a low...
An XSS issue was discovered in Zammad 3.0 through 3.2. Malicious code can be provided by a low-privileged user through the Ticket functionality in Zammad. The malicious JavaScript will execute within the browser of any user who opens the ticket or has the ticket within the Toolbar.
- Record
GHSA-9789-x2qq-rrpj- Updated
- 2026-11-02
OSV
An XSS issue was discovered in Zammad 3.0 through 3.2. Malicious code can be provided by a low-privileged user through the Ticket functionality in Zammad. The malicious JavaScript will execute within the browser of any user who opens the ticket or has the ticket within the Toolbar.
- Record
CVE-2020-10099- CVSS 3.1
- 5.4 Medium
CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N - Updated
- 2026-11-02
Affected products
History
| Recorded | Changed | Sources |
|---|---|---|
| facts | ||
| aliases | EUVD | |
| first indexed | CVE List, GitHub Advisories, NVD, OSV |
Dates are when Every CVE recorded each change. Upstream dates may differ.
In short
CVE-2020-10099 is a medium vulnerability (CVSS 5.4) in Zammad, published March 5, 2020. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 0.55%, the 46th percentile. No source names a fixed version.